0001500217-23-000071 | 10-Q | XBRL Viewer | American Assets Trust INC

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ACQUIRED IN-PLACE LEASES AND ABOVE/BELOW MARKET LEASES - Acquired Lease Intangibles and Leasing Costs Included in Other Assets and Other Liabilities and Deferred Credits (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Acquired Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ (1,803)	$ (1,549)
Below market leases	52,417	52,832
Accumulated accretion	(35,121)	(33,168)
Acquired lease intangible liabilities, net	17,296	19,664
Leases
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired lease intangible assets, net	19,841	23,633
In-place leases
Acquired Finite-Lived Intangible Assets [Line Items]
Leases, gross	57,292	58,119
Accumulated amortization	(37,527)	(34,593)
Above market leases
Acquired Finite-Lived Intangible Assets [Line Items]
Leases, gross	1,885	1,885
Accumulated amortization	$ (1,809)	$ (1,778)

OTHER ASSETS (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Leasing commissions, net of accumulated amortization of $48,181 and $43,078, respectively	$ 38,168	$ 38,436
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Total other assets	Total other assets
Interest rate swap asset	$ 12,648	$ 9,986
Acquired above market leases, net	76	107
Acquired in-place leases, net	19,765	23,526
Lease incentives, net of accumulated amortization of $1,177 and $1,012, respectively	1,430	1,296
Other intangible assets, net of accumulated amortization of $1,803 and $1,549, respectively	1,896	2,165
Debt issuance costs, net of accumulated amortization of $1,134 and $0, respectively	$ 1,457	$ 0
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Total other assets	Total other assets
Right-of-use lease asset, net	$ 22,116	$ 23,921
Prepaid expenses and other	11,028	9,277
Total other assets	108,584	108,714
Leasing commissions, accumulative amortization	48,181	43,078
Lease incentives, accumulated amortization	1,177	1,012
Other intangible assets, accumulated amortization	1,803	1,549
Debt issuance costs, accumulated amortization	$ 1,134	$ 0

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
INCOME TAXES (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Deferred tax asset	$ 700		$ 700		$ 700
Deferred tax liability	800		800		$ 900
Income tax expense	$ 293	$ 240	$ 750	$ 640

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

COMPONENTS OF RENTAL INCOME AND EXPENSE

9 Months Ended

Sep. 30, 2023

Leases [Abstract]

COMPONENTS OF RENTAL INCOME AND EXPENSE

The principal components of rental income are as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Lease rental income
Office	$	50,212	$	51,637	$	149,807	$	148,636
Retail	24,766		24,310		74,151		71,637
Multifamily	14,106		13,539		42,769		39,622
Mixed-use	2,955		2,960		8,929		8,574
Percentage rent	905		978		2,065		2,216
Hotel revenue	11,893		11,379		32,402		28,848
Other	657		665		1,982		1,937
Total rental income	$	105,494	$	105,468	$	312,105	$	301,470

Lease rental income includes $0.4 million and $2.5 million for the three months ended September 30, 2023 and 2022, respectively, and $3.6 million and $6.3 million for the nine months ended September 30, 2023 and 2022, respectively, to recognize lease rental income on a straight-line basis. In addition, net amortization of above and below market leases included in lease rental income was $0.8 million and $0.8 million for the three months ended September 30, 2023 and 2022, respectively, and $2.3 million and $2.5 million for the nine months ended September 30, 2023 and 2022, respectively.

The principal components of rental expenses are as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Rental operating	$	13,428	$	12,272	$	38,779	$	34,795
Hotel operating	7,675		7,230		21,935		19,352
Repairs and maintenance	5,652		5,799		16,298		15,868
Marketing	491		489		1,568		1,477
Rent	885		815		2,651		2,405
Hawaii excise tax	1,147		1,231		3,134		2,963
Management fees	634		602		1,763		1,576
Total rental expenses	$	29,912	$	28,438	$	86,128	$	78,436

OTHER INCOME (EXPENSE), NET (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Other Income and Expenses [Abstract]
Interest and investment income	$ 614	$ 60	$ 1,507	$ 117
Income tax expense	(293)	(240)	(750)	(640)
Other non-operating income	0	0	6,515	0
Total other income (expense), net	$ 321	$ (180)	$ 7,272	$ (523)

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

EQUITY OF AMERICAN ASSETS TRUST, INC. - Dividends Declare and Paid on Shares on Common Stock and Noncontrolling Common Units (Details) - $ / shares	3 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023
Equity [Abstract]
Amount per Share/Unit	$ 0.33	$ 0.33	$ 0.33

Consolidated Statement of Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Shares	Additional Paid-in Capital	Accumulated Dividends in Excess of Net Income	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests - Unitholders in the Operating Partnership
Beginning Balance (in shares) at Dec. 31, 2021		60,525,580
Beginning Balance at Dec. 31, 2021	$ 1,210,123	$ 605	$ 1,453,272	$ (217,785)	$ 2,872	$ (28,841)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	13,514			10,678		2,836
Forfeiture of restricted stock (in shares)		(3,121)
Dividends declared and paid	(24,545)			(19,367)		(5,178)
Stock-based compensation	1,489		1,489
Shares withheld for employee taxes (in shares)		(416)
Shares withheld for employee taxes	(15)		(15)
Other comprehensive income - change in value of interest rate swaps	5,596				4,408	1,188
Reclassification of amortization of forward-starting swap included in interest expense	(275)				(217)	(58)
Ending Balance (in shares) at Mar. 31, 2022		60,522,043
Ending Balance at Mar. 31, 2022	1,205,887	$ 605	1,454,746	(226,474)	7,063	(30,053)
Beginning Balance (in shares) at Dec. 31, 2021		60,525,580
Beginning Balance at Dec. 31, 2021	1,210,123	$ 605	1,453,272	(217,785)	2,872	(28,841)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	43,471
Other comprehensive income - change in value of interest rate swaps	13,117
Ending Balance (in shares) at Sep. 30, 2022		60,528,115
Ending Balance at Sep. 30, 2022	1,197,723	$ 605	1,458,748	(241,549)	12,554	(32,635)
Beginning Balance (in shares) at Mar. 31, 2022		60,522,043
Beginning Balance at Mar. 31, 2022	1,205,887	$ 605	1,454,746	(226,474)	7,063	(30,053)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	13,588			10,736		2,852
Issuance of restricted stock (in shares)		6,072
Dividends declared and paid	(24,547)			(19,369)		(5,178)
Stock-based compensation	2,001		2,001
Other comprehensive income - change in value of interest rate swaps	3,314				2,610	704
Reclassification of amortization of forward-starting swap included in interest expense	(275)				(216)	(59)
Ending Balance (in shares) at Jun. 30, 2022		60,528,115
Ending Balance at Jun. 30, 2022	1,199,968	$ 605	1,456,747	(235,107)	9,457	(31,734)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	16,369			12,927		3,442
Dividends declared and paid	(24,547)			(19,369)		(5,178)
Stock-based compensation	2,001		2,001
Other comprehensive income - change in value of interest rate swaps	4,207				3,314	893
Reclassification of amortization of forward-starting swap included in interest expense	(275)				(217)	(58)
Ending Balance (in shares) at Sep. 30, 2022		60,528,115
Ending Balance at Sep. 30, 2022	$ 1,197,723	$ 605	1,458,748	(241,549)	12,554	(32,635)
Beginning Balance (in shares) at Dec. 31, 2022	60,718,653	60,718,653
Beginning Balance at Dec. 31, 2022	$ 1,185,525	$ 607	1,461,201	(251,167)	10,624	(35,740)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	20,666			16,325		4,341
Forfeiture of restricted stock (in shares)		(818)
Dividends declared and paid	(25,377)			(20,037)		(5,340)
Stock-based compensation	2,035		2,035
Other comprehensive income - change in value of interest rate swaps	(2,269)				(1,786)	(483)
Reclassification of amortization of forward-starting swap included in interest expense	(854)				(673)	(181)
Ending Balance (in shares) at Mar. 31, 2023		60,717,835
Ending Balance at Mar. 31, 2023	$ 1,179,726	$ 607	1,463,236	(254,879)	8,165	(37,403)
Beginning Balance (in shares) at Dec. 31, 2022	60,718,653	60,718,653
Beginning Balance at Dec. 31, 2022	$ 1,185,525	$ 607	1,461,201	(251,167)	10,624	(35,740)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	51,198
Other comprehensive income - change in value of interest rate swaps	$ 2,859
Ending Balance (in shares) at Sep. 30, 2023	60,724,630	60,724,630
Ending Balance at Sep. 30, 2023	$ 1,168,650	$ 607	1,467,455	(270,817)	12,051	(40,646)
Beginning Balance (in shares) at Mar. 31, 2023		60,717,835
Beginning Balance at Mar. 31, 2023	1,179,726	$ 607	1,463,236	(254,879)	8,165	(37,403)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	15,397			12,173		3,224
Issuance of restricted stock (in shares)		10,348
Forfeiture of restricted stock (in shares)		(3,553)
Dividends declared and paid	(25,379)			(20,039)		(5,340)
Stock-based compensation	2,110		2,110
Other comprehensive income - change in value of interest rate swaps	4,360				3,436	924
Reclassification of amortization of forward-starting swap included in interest expense	(98)				(77)	(21)
Ending Balance (in shares) at Jun. 30, 2023		60,724,630
Ending Balance at Jun. 30, 2023	1,176,116	$ 607	1,465,346	(262,745)	11,524	(38,616)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	15,135			11,967		3,168
Dividends declared and paid	(25,379)			(20,039)		(5,340)
Stock-based compensation	2,109		2,109
Other comprehensive income - change in value of interest rate swaps	768				605	163
Reclassification of amortization of forward-starting swap included in interest expense	$ (99)				(78)	(21)
Ending Balance (in shares) at Sep. 30, 2023	60,724,630	60,724,630
Ending Balance at Sep. 30, 2023	$ 1,168,650	$ 607	$ 1,467,455	$ (270,817)	$ 12,051	$ (40,646)

FAIR VALUE OF FINANCIAL INSTRUMENTS - Carrying Amount and Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Secured notes payable, net \| Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 74,646	$ 74,578
Unsecured term loans, net \| Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	323,201	249,428
Unsecured senior guaranteed notes, net \| Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	798,670	798,362
Senior unsecured notes, net \| Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	492,436	491,663
Unsecured line of credit, net \| Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	0	34,057
Level 2 \| Secured notes payable, net \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	72,976	75,129
Level 2 \| Unsecured term loans, net \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	325,000	250,000
Level 2 \| Unsecured senior guaranteed notes, net \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	751,414	761,470
Level 2 \| Senior unsecured notes, net \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	373,445	403,500
Level 2 \| Unsecured line of credit, net \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 0	$ 36,000

DEBT (Tables)

9 Months Ended

Sep. 30, 2023

Debt Disclosure [Abstract]

Summary of Secured and Unsecured Notes Payable Outstanding

The following table is a summary of our total secured notes payable outstanding as of September 30, 2023 and December 31, 2022 (in thousands):


	Principal Balance as of				Stated Interest Rate		Stated Maturity Date
Description of Debt	September 30, 2023		December 31, 2022		as of September 30, 2023


City Center Bellevue (1)	$	75,000	$	75,000	5.08	%	October 1, 2027
	75,000		75,000

Debt issuance costs, net of accumulated amortization of $519 and $452, respectively	(354)		(422)
Total Secured Notes Payable Outstanding	$	74,646	$	74,578

(1)Interest only.

The following table is a summary of the Operating Partnership's total unsecured notes payable outstanding as of September 30, 2023 and December 31, 2022 (in thousands):


Description of Debt	Principal Balance as of				Stated Interest Rate			Stated Maturity Date
	September 30, 2023		December 31, 2022		as of September 30, 2023
Term Loan A	$	100,000	$	100,000	Variable		(1)	January 5, 2027

Term Loan B	150,000		100,000		Variable		(3)	January 5, 2025	(2)
Term Loan C	75,000		50,000		Variable		(4)	January 5, 2025	(2)
Senior Guaranteed Notes, Series F	100,000		100,000		3.78	%	(5)	July 19, 2024
Senior Guaranteed Notes, Series B	100,000		100,000		4.45	%		February 2, 2025
Senior Guaranteed Notes, Series C	100,000		100,000		4.50	%		April 1, 2025
Senior Guaranteed Notes, Series D	250,000		250,000		4.29	%	(6)	March 1, 2027
Senior Guaranteed Notes, Series E	100,000		100,000		4.24	%	(7)	May 23, 2029
Senior Guaranteed Notes, Series G	150,000		150,000		3.91	%	(8)	July 30, 2030
3.375% Senior Unsecured Notes	500,000		500,000		3.38	%		February 1, 2031
	1,625,000		1,550,000
Debt discount and issuance costs, net of accumulated amortization of $6,609 and $11,709, respectively	(10,693)		(10,547)
Total Unsecured Notes Payable	$	1,614,307	$	1,539,453

(1)The Operating Partnership entered into two interest rate swap agreements that are intended to fix the interest rate associated with Term Loan A at approximately 2.70% through its maturity date, subject to adjustments based on our consolidated leverage ratio.

(2)On January 5, 2023, we extended Term Loan B and Term Loan C to a maturity date of January 5, 2025 with one, twelve-month extension option and increased the fully drawn borrowings thereunder to $150 million and $75 million, respectively.

(3)The Operating Partnership entered into an interest rate swap agreement that is intended to fix the interest rate associated with Term Loan B as follows, in each case subject to adjustments based on our consolidated leverage ratio: (a) from March 1, 2018 through November 30, 2022, the effective interest rate associated with Term Loan B was approximately 2.65% (and such interest rate swap agreement was terminated as of November 30, 2022) and (b) from January 5, 2023 through January 4, 2025, the effective interest rate associated with Term Loan B is approximately 5.47% for the first year (January 5, 2023 through January 4, 2024) and 5.57% for the second year (January 5, 2024 through January 4, 2025) of Term Loan B. Note that variable interest was paid on Term Loan B from December 1, 2022 through January 4, 2023 at 5.32% as there were no interest rate swap agreements in place during such time period on Term Loan B.

(4)The Operating Partnership has entered into an interest rate swap agreement that is intended to fix the interest rate associated with Term Loan C as follows, in each case subject to adjustments based on our consolidated leverage ratio: (a) from March 1, 2018 through November 30, 2022, the effective interest rate associated with Term Loan C was approximately 2.64% (and such interest rate swap agreement was terminated as of November 30, 2022) and (b) from January 5, 2023 through January 4, 2025, the effective interest rate associated with Term Loan C is approximately 5.47% for the first year (January 5, 2023 through January 4, 2024) and 5.57% for the second year (January 5, 2024 through January 4, 2025) of Term Loan C. Note that variable interest was paid on Term Loan C from December 1, 2022 through January 4, 2023 at 5.32% as there were no interest rate swap agreements in place during such time period on Term Loan C.

(5)The Operating Partnership entered into a treasury lock contract on May 31, 2017, which was settled on June 23, 2017 at a loss of approximately $0.5 million. The treasury lock contract was deemed to be a highly effective cash flow hedge; accordingly, the effective interest rate is approximately 3.85% per annum.

(6)The Operating Partnership entered into forward-starting interest rate swap contracts on March 29, 2016 and April 7, 2016, which were settled on January 18, 2017 at a gain of approximately $10.4 million. Each of the forward-starting interest swap rate contracts were deemed to be a highly effective cash flow hedge; accordingly, the effective interest rate is approximately 3.87% per annum.

(7)The Operating Partnership entered into a treasury lock contract on April 25, 2017, which was settled on May 11, 2017 at a gain of approximately $0.7 million. The treasury lock contract was deemed to be a highly effective cash flow hedge; accordingly, the effective interest rate is approximately 4.18% per annum.

(8)The Operating Partnership entered into a treasury lock contract on June 20, 2019, which was settled on July 17, 2019 at a gain of approximately $0.5 million. The treasury lock contract was deemed to be a highly effective cash flow hedge; accordingly, the effective interest rate is approximately 3.88% per annum.

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
OPERATING ACTIVITIES
Net income	$ 51,198	$ 43,471
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred rent revenue and amortization of lease intangibles	(6,167)	(8,766)
Depreciation and amortization	89,592	93,228
Amortization of debt issuance costs and debt discounts	2,553	1,930
Provision for uncollectable rental income	1,088	(31)
Stock-based compensation expense	6,254	5,491
Other noncash interest expense, net	(1,051)	(825)
Other, net	(588)	684
Changes in operating assets and liabilities
Change in accounts receivable	(847)	(1,072)
Change in other assets	(2,062)	(1,115)
Change in accounts payable and accrued expenses	9,126	5,753
Change in security deposits payable	252	777
Change in other liabilities and deferred credits	557	1,367
Net cash provided by operating activities	149,905	140,892
INVESTING ACTIVITIES
Acquisition of real estate	0	(45,167)
Capital expenditures	(64,229)	(88,314)
Leasing commissions	(5,999)	(6,153)
Net cash used in investing activities	(70,228)	(139,634)
FINANCING ACTIVITIES
Issuance of secured notes payable	0	75,000
Repayment of secured notes payable	0	(111,000)
Proceeds from unsecured term loan	225,000	0
Proceeds from unsecured line of credit	0	36,000
Repayment of unsecured line of credit	(36,000)	0
Repayment of unsecured term loan	(150,000)	0
Debt issuance costs	(2,145)	(3,697)
Dividends paid to common stock and unitholders	(76,135)	(73,639)
Shares withheld for employee taxes	0	(15)
Net cash used in financing activities	(39,280)	(77,351)
Net increase (decrease) in cash and cash equivalents	40,397	(76,093)
Cash and cash equivalents, beginning of period	49,571	139,524
Cash and cash equivalents, end of period	89,968	63,431
Reconciliation of cash, cash equivalents and restricted cash
Cash and cash equivalents	89,968	63,431
Restricted cash	0	0
Total cash, cash equivalents and restricted cash shown in the consolidated statement of cash flows	$ 89,968	$ 63,431

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
REVENUE:
Rental income	$ 105,494	$ 105,468	$ 312,105	$ 301,470
Other property income	5,704	5,555	16,568	15,178
Total revenue	111,198	111,023	328,673	316,648
EXPENSES:
Rental expenses	29,912	28,438	86,128	78,436
Real estate taxes	11,399	11,477	34,117	34,193
General and administrative	8,880	8,376	26,488	23,130
Depreciation and amortization	29,868	31,729	89,592	93,228
Total operating expenses	80,059	80,020	236,325	228,987
OPERATING INCOME	31,139	31,003	92,348	87,661
Interest expense, net	(16,325)	(14,454)	(48,422)	(43,667)
Other income (expense), net	321	(180)	7,272	(523)
NET INCOME	15,135	16,369	51,198	43,471
Net income attributable to restricted shares	(189)	(155)	(568)	(464)
Net income attributable to unitholders in the Operating Partnership	(3,168)	(3,442)	(10,733)	(9,130)
NET INCOME ATTRIBUTABLE TO AMERICAN ASSETS TRUST	$ 11,778	$ 12,772	$ 39,897	$ 33,877
EARNINGS PER COMMON SHARE, BASIC
Earnings per common share, basic (in USD per share)	$ 0.20	$ 0.21	$ 0.66	$ 0.56
Weighted average shares of common stock outstanding - basic (in shares)	60,150,681	60,044,117	60,147,189	60,041,034
EARNINGS PER COMMON SHARE, DILUTED
Earnings per common share, diluted (in USD per share)	$ 0.20	$ 0.21	$ 0.66	$ 0.56
Weighted average shares of common stock outstanding - diluted (in shares)	76,332,218	76,225,654	76,328,726	76,222,571
DIVIDENDS DECLARED PER COMMON SHARE (in USD per share)	$ 0.33	$ 0.32	$ 0.99	$ 0.96
COMPREHENSIVE INCOME
Net income	$ 15,135	$ 16,369	$ 51,198	$ 43,471
Other comprehensive income - unrealized income on swap derivatives during the period	768	4,207	2,859	13,117
Reclassification of amortization of forward-starting swap included in interest expense	(99)	(275)
Comprehensive income	15,804	20,301	53,006	55,763
Comprehensive income attributable to non-controlling interests	(3,310)	(4,277)	(11,114)	(11,739)
Comprehensive income attributable to American Assets Trust, Inc.	12,494	16,024	41,892	44,024
Interest Expense
COMPREHENSIVE INCOME
Reclassification of amortization of forward-starting swap included in interest expense	$ (99)	$ (275)	$ (1,051)	$ (825)

Consolidated Balance Sheets - LP - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Real estate, at cost
Operating real estate	$ 3,494,369	$ 3,468,537
Construction in progress	233,720	202,385
Held for development	547	547
Total Real estate, at cost	3,728,636	3,671,469
Accumulated depreciation	(1,013,367)	(936,913)
Real estate, net	2,715,269	2,734,556
Cash and cash equivalents	89,968	49,571
Accounts receivable, net	7,875	7,848
Deferred rent receivables, net	89,023	87,192
Other assets, net	108,584	108,714
TOTAL ASSETS	3,010,719	2,987,881
LIABILITIES:
Secured notes payable, net	74,646	74,578
Unsecured notes payable, net	1,614,307	1,539,453
Unsecured line of credit, net	0	34,057
Accounts payable and accrued expenses	70,970	65,992
Security deposits payable	8,952	8,699
Other liabilities and deferred credits, net	73,194	79,577
Total liabilities	1,842,069	1,802,356
Commitments and contingencies (Note 11)
CAPITAL:
Accumulated other comprehensive income	12,051	10,624
TOTAL LIABILITIES AND EQUITY	3,010,719	2,987,881
American Assets Trust, L.P.
Real estate, at cost
Operating real estate	3,494,369	3,468,537
Construction in progress	233,720	202,385
Held for development	547	547
Total Real estate, at cost	3,728,636	3,671,469
Accumulated depreciation	(1,013,367)	(936,913)
Real estate, net	2,715,269	2,734,556
Cash and cash equivalents	89,968	49,571
Accounts receivable, net	7,875	7,848
Deferred rent receivables, net	89,023	87,192
Other assets, net	108,584	108,714
TOTAL ASSETS	3,010,719	2,987,881
LIABILITIES:
Secured notes payable, net	74,646	74,578
Unsecured notes payable, net	1,614,307	1,539,453
Unsecured line of credit, net	0	34,057
Accounts payable and accrued expenses	70,970	65,992
Security deposits payable	8,952	8,699
Other liabilities and deferred credits, net	73,194	79,577
Total liabilities	1,842,069	1,802,356
Commitments and contingencies (Note 11)
CAPITAL:
Limited partners' capital, 16,181,537 and 16,181,537 units issued and outstanding as of September 30, 2023 and December 31, 2022, respectively	(44,414)	(39,127)
General partner's capital, 60,724,630 and 60,718,653 units issued and outstanding as of September 30, 2023 and December 31, 2022, respectively	1,197,245	1,210,641
Accumulated other comprehensive income	15,819	14,011
Total capital	1,168,650	1,185,525
TOTAL LIABILITIES AND EQUITY	$ 3,010,719	$ 2,987,881

LEASES - Supplemental Lease Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating cash flow information:
Cash paid for amounts included in the measurement of lease liabilities	$ 2,484	$ 2,412

COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	9 Months Ended
COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	Sep. 30, 2023 USD ($) property
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Termination payment	$ 7,400
Number of consolidated properties located in southern California \| property	15
Total Revenues \| Industry Concentration Risk \| Retail
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Proportion of total revenue provided by retail or office tenants	23.60%
Total Revenues \| Industry Concentration Risk \| Office
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Proportion of total revenue provided by retail or office tenants	47.20%
Waikiki Beach Walk - Retail
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Property management fee	3.00%
Outrigger Hotels
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Property management fee	6.00%
Number of calendar months termination fee is based	2 months
Maximum proportion of hotel's fiscal year gross revenues paid for aggregate yearly management fee	3.50%
Previous months of management fees	12 months
Hotel management agreement default penalty factor of previous twelve months of management fees in twelfth year of term	4
Hotel management agreement default penalty factor of previous twelve months of management fees in thirteenth year of term	3
Hotel management agreement default penalty factor of previous twelve months of management fees in fourteenth year of term	2
Hotel management agreement default penalty factor of previous twelve months of management fees in fifteenth year of term	1
Payment for management fee	$ 12
Termination notice period	30 days
Outrigger Hotels \| Maximum
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Property management fee	3.00%
Wbw Hotel Lessee Llc
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Years of contract	20 years
Proportion of hotel occupancy gross revenue paid for program fee	4.00%
Wbw Hotel Lessee Llc \| Future Time Period Prior to 12-31-2021
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Proportion of hotel occupancy gross revenue paid for franchise royalty fee	5.00%
Del Monte Center \| Minimum
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Years, environmental remediation length	5 years
Del Monte Center \| Maximum
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Years, environmental remediation length	7 years

OTHER ASSETS

9 Months Ended

Sep. 30, 2023

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

OTHER ASSETS

Other assets consist of the following (in thousands):


	September 30, 2023		December 31, 2022
Leasing commissions, net of accumulated amortization of $48,181 and $43,078, respectively	$	38,168	$	38,436
Interest rate swap asset	12,648		9,986
Acquired above market leases, net	76		107
Acquired in-place leases, net	19,765		23,526
Lease incentives, net of accumulated amortization of $1,177 and $1,012, respectively	1,430		1,296
Other intangible assets, net of accumulated amortization of $1,803 and $1,549, respectively	1,896		2,165
Debt issuance costs, net of accumulated amortization of $1,134 and $0, respectively	1,457		—

Right-of-use lease asset, net	22,116		23,921
Prepaid expenses and other	11,028		9,277
Total other assets	$	108,584	$	108,714

FAIR VALUE OF FINANCIAL INSTRUMENTS - Narrative (Details) - Level 2	Sep. 30, 2023
Minimum
Fair Value Inputs Disclosures
Fair value assumptions, interest rate	0.060
Maximum
Fair Value Inputs Disclosures
Fair value assumptions, interest rate	0.070

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

9 Months Ended

Sep. 30, 2023

Accounting Policies [Abstract]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Business and Organization

American Assets Trust, Inc. (which may be referred to in these financial statements as the “company,” “we,” “us,” or “our”) is a Maryland corporation formed on July 16, 2010 that did not have any operating activity until the consummation of our initial public offering on January 19, 2011. The company is the sole general partner of American Assets Trust, L.P., a Maryland limited partnership formed on July 16, 2010 (the “Operating Partnership”). The company’s operations are carried on through our Operating Partnership and its subsidiaries, including our taxable real estate investment trust ("REIT") subsidiary ("TRS"). Since the formation of our Operating Partnership, the company has controlled our Operating Partnership as its general partner and has consolidated its assets, liabilities and results of operations.

We are a full service, vertically integrated, and self-administered REIT with approximately 229 employees providing substantial in-house expertise in asset management, property management, property development, leasing, tenant improvement construction, acquisitions, repositioning, redevelopment and financing.

As of September 30, 2023, we owned or had a controlling interest in 31 office, retail, multifamily and mixed-use operating properties, the operations of which we consolidate. Additionally, as of September 30, 2023, we owned land at three of our properties that we classify as held for development and/or construction in progress. A summary of the properties owned by us is as follows:


Retail
Carmel Country Plaza	Gateway Marketplace	Alamo Quarry Market
Carmel Mountain Plaza	Del Monte Center	Hassalo on Eighth - Retail
South Bay Marketplace	Geary Marketplace
Lomas Santa Fe Plaza	The Shops at Kalakaua
Solana Beach Towne Centre	Waikele Center

Office
La Jolla Commons	One Beach Street	Corporate Campus East III
Torrey Reserve Campus	First & Main	Bel-Spring 520
Torrey Point	Lloyd Portfolio
Solana Crossing	City Center Bellevue
The Landmark at One Market	Eastgate Office Park

Multifamily
Loma Palisades	Hassalo on Eighth - Residential
Imperial Beach Gardens
Mariner's Point
Santa Fe Park RV Resort
Pacific Ridge Apartments

Mixed-Use
Waikiki Beach Walk Retail and Embassy Suites™ Hotel

Held for Development and/or Construction in Progress
La Jolla Commons – Land
Solana Crossing – Land
Lloyd Portfolio – Construction in Progress

Basis of Presentation

Our consolidated financial statements include the accounts of the company, our Operating Partnership and our subsidiaries. The equity interests of other investors in our Operating Partnership are reflected as noncontrolling interests.

The company follows the Financial Accounting Standards Board (the "FASB") guidance for determining whether an entity is a variable interest entity (“VIE”) and requires the performance of a qualitative rather than a quantitative analysis to determine the primary beneficiary of a VIE. Under this guidance, an entity would be required to consolidate a VIE if it has (i) the power to direct the activities that most significantly impact the entity’s economic performance and (ii) the obligation to absorb losses of the VIE or the right to receive benefits from the VIE that could be significant to the VIE. American Assets Trust, Inc. has concluded that the Operating Partnership is a VIE, and because American Assets Trust, Inc. has both the power and the rights to control the Operating Partnership, American Assets Trust, Inc. is the primary beneficiary and is required to continue to consolidate the Operating Partnership. Substantially all of the assets and liabilities of the company are related to the operating partnership VIE.

All intercompany transactions and balances are eliminated in consolidation.

The accompanying consolidated financial statements of the company and the Operating Partnership have been prepared in accordance with the rules applicable to Form 10-Q and include all information and footnotes required for interim financial statement presentation, but do not include all disclosures required under accounting principles generally accepted in the United States (“GAAP”) for annual financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments, except as otherwise noted) considered necessary for a fair presentation have been included. These financial statements should be read in conjunction with the audited consolidated financial statements and notes therein included in the company's and Operating Partnership's annual report on Form 10-K for the year ended December 31, 2022.

The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that in certain circumstances affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities, and revenues and expenses. These estimates are prepared using our best judgment, after considering past, current and expected events and economic conditions. Actual results could differ from these estimates.

Any reference to the number of properties, number of units, square footage, employee numbers or percentages of beneficial ownership of our shares are unaudited and outside the scope of our independent registered public accounting firm’s review of our financial statements in accordance with the standards of the United States Public Company Accounting Oversight Board.

Consolidated Statements of Cash Flows—Supplemental Disclosures

The following table provides supplemental disclosures related to the Consolidated Statements of Cash Flows (in thousands):


	Nine Months Ended September 30,
	2023		2022
Supplemental cash flow information
Total interest costs incurred	$	54,167	$	47,792
Interest capitalized	$	5,745	$	4,125
Interest expense, net	$	48,422	$	43,667
Cash paid for interest, net of amounts capitalized	$	51,976	$	48,145
Cash paid for income taxes	$	1,122	$	638
Supplemental schedule of noncash investing and financing activities
Accounts payable and accrued liabilities for construction in progress	$	17,040	$	20,750







Accrued leasing commissions	$	2,086	$	1,897

Significant Accounting Policies

We describe our significant accounting policies in Note 1 to the consolidated financial statements in Item 8 of our Annual Report on Form 10-K for the year ended December 31, 2022. There have been no changes to our significant accounting policies during the nine months ended September 30, 2023.

Segment Information

Segment information is prepared on the same basis that our chief operating decision maker reviews information for operational decision-making purposes. We operate in four business segments: the acquisition, redevelopment, ownership and management of office real estate, retail real estate, multifamily real estate and mixed-use real estate. The products for our office segment primarily include rental of office space and other tenant services, including tenant reimbursements, parking and storage space rental. The products for our retail segment primarily include rental of retail space and other tenant services, including tenant reimbursements, parking and storage space rental. The products for our multifamily segment include rental of apartments and other tenant services. The products of our mixed-use segment include rental of retail space and other tenant services, including tenant reimbursements, parking and storage space rental and operation of a 369-room all-suite hotel.

Revenue Recognition and Accounts Receivable

Our leases with tenants are classified as operating leases. Substantially all such leases contain fixed rent escalations which occur at specified times during the term of the lease. Base rents are recognized on a straight-line basis from when the tenant controls the space through the term of the related lease, net of valuation adjustments, based on management's assessment of credit, collection and other business risks.

We make estimates of the collectability of our current accounts receivable and straight-line rents receivable which require significant judgment by management. The collectability of receivables is affected by numerous different factors including current economic conditions, the impact of tenant bankruptcies, the status of collectability of current cash rents receivable, tenants' recent and historical financial and operating results, changes in our tenants' credit ratings, communications between our operating personnel and tenants, the extent of security deposits and letters of credit held with respect to tenants, and the ability of tenants to perform under the terms of their lease agreement. The provision for doubtful accounts at September 30, 2023 and December 31, 2022 was approximately $1.3 million and $2.1 million, respectively.

Rent Concessions – COVID-19

Due to the impacts of COVID-19, from 2020 through 2022 we provided lease concessions to certain tenants, primarily within the retail segment, in the form of rent deferrals and abatements. We assess each lease concession and determine whether it represents a lease modification under Accounting Standards Codification Topic 842, Leases ("ASC 842").

Recent Accounting Pronouncements

In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848), which provides companies with optional practical expedients to ease the accounting burden for contract modifications associated with transitioning away from LIBOR and other interbank offered rates that have been or are expected to be discontinued as part of reference rate reform. For hedges, the guidance generally allows changes to the reference rate and other critical terms without having to de-designate the hedging relationship, and permits the shortcut method to continue to be applied. For contract modifications, changes in the reference rate or other critical terms will be treated as a continuation of the prior contract. This guidance is generally only available until December 31, 2024. We are still evaluating the impact of reference rate reform and whether we will apply any of these practical expedients.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

9 Months Ended

Sep. 30, 2023

Accounting Policies [Abstract]

Summary of Properties Owned

A summary of the properties owned by us is as follows:


Retail
Carmel Country Plaza	Gateway Marketplace	Alamo Quarry Market
Carmel Mountain Plaza	Del Monte Center	Hassalo on Eighth - Retail
South Bay Marketplace	Geary Marketplace
Lomas Santa Fe Plaza	The Shops at Kalakaua
Solana Beach Towne Centre	Waikele Center

Office
La Jolla Commons	One Beach Street	Corporate Campus East III
Torrey Reserve Campus	First & Main	Bel-Spring 520
Torrey Point	Lloyd Portfolio
Solana Crossing	City Center Bellevue
The Landmark at One Market	Eastgate Office Park

Multifamily
Loma Palisades	Hassalo on Eighth - Residential
Imperial Beach Gardens
Mariner's Point
Santa Fe Park RV Resort
Pacific Ridge Apartments

Mixed-Use
Waikiki Beach Walk Retail and Embassy Suites™ Hotel

Held for Development and/or Construction in Progress
La Jolla Commons – Land
Solana Crossing – Land
Lloyd Portfolio – Construction in Progress

Supplemental Disclosures Related to the Consolidated Statements of Cash Flows

The following table provides supplemental disclosures related to the Consolidated Statements of Cash Flows (in thousands):


	Nine Months Ended September 30,
	2023		2022
Supplemental cash flow information
Total interest costs incurred	$	54,167	$	47,792
Interest capitalized	$	5,745	$	4,125
Interest expense, net	$	48,422	$	43,667
Cash paid for interest, net of amounts capitalized	$	51,976	$	48,145
Cash paid for income taxes	$	1,122	$	638
Supplemental schedule of noncash investing and financing activities
Accounts payable and accrued liabilities for construction in progress	$	17,040	$	20,750







Accrued leasing commissions	$	2,086	$	1,897

SEGMENT REPORTING - Reconciliation of Segment Profit to Net Income Attributable to Stockholders (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting [Abstract]
Total segments’ profit	$ 69,887			$ 71,108			$ 208,428	$ 204,019
General and administrative	(8,880)			(8,376)			(26,488)	(23,130)
Depreciation and amortization	(29,868)			(31,729)			(89,592)	(93,228)
Interest expense, net	(16,325)			(14,454)			(48,422)	(43,667)
Other income (expense), net	321			(180)			7,272	(523)
NET INCOME	15,135	$ 15,397	$ 20,666	16,369	$ 13,588	$ 13,514	51,198	43,471
Net income attributable to restricted shares	(189)			(155)			(568)	(464)
Net income attributable to unitholders in the Operating Partnership	(3,168)			(3,442)			(10,733)	(9,130)
NET INCOME ATTRIBUTABLE TO AMERICAN ASSETS TRUST	$ 11,778			$ 12,772			$ 39,897	$ 33,877

RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Thousands			3 Months Ended		9 Months Ended
	Mar. 01, 2021	Mar. 01, 2019	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Related Party Transaction [Line Items]
Rental income			$ 105,494	$ 105,468	$ 312,105	$ 301,470
General and administrative			$ 8,880	$ 8,376	26,488	23,130
American Assets, Inc. \| Related Party
Related Party Transaction [Line Items]
Term of contract	10 years	3 years
Rental income					200	200
American Assets, Inc. \| Related Party \| Office Space Lease
Related Party Transaction [Line Items]
Amounts of transaction	$ 200	$ 200
AAI Aviation, Inc. \| Related Party
Related Party Transaction [Line Items]
General and administrative					$ 100	200
WBW CHP LLC
Related Party Transaction [Line Items]
Investment in WBW CHP LLC					47.70%
WBW CHP LLC \| Reimbursement of Operating Expenses
Related Party Transaction [Line Items]
Amounts of transaction					$ 900	$ 900

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Supplement Disclosures Related to Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Accounting Policies [Abstract]
Total interest costs incurred	$ 54,167	$ 47,792
Interest capitalized	5,745	4,125
Interest expense, net	48,422	43,667
Cash paid for interest, net of amounts capitalized	51,976	48,145
Cash paid for income taxes	1,122	638
Accounts payable and accrued liabilities for construction in progress	17,040	20,750
Accrued leasing commissions	$ 2,086	$ 1,897

- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

+ References + Details

Cover Page - shares	9 Months Ended
Cover Page - shares	Sep. 30, 2023	Oct. 27, 2023
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity Registrant Name	AMERICAN ASSETS TRUST, INC.
Entity File Number	001-35030
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	27-3338708
Entity Address, Address Line One	3420 Carmel Mountain Road
Entity Address, Address Line Two	Suite 100
Entity Address, City or Town	San Diego
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92121
City Area Code	858
Local Phone Number	350-2600
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	AAT
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		60,724,630
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001500217
Current Fiscal Year End Date	--12-31
American Assets Trust, L.P.
Entity Information [Line Items]
Entity Registrant Name	AMERICAN ASSETS TRUST, L.P.
Entity File Number	333-202342-01
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	27-3338894
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001509570

COMPONENTS OF RENTAL INCOME AND EXPENSE - Component of Rental Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Rental Income [Line Items]
Percentage rent	$ 905	$ 978	$ 2,065	$ 2,216
Hotel revenue	11,893	11,379	32,402	28,848
Other	657	665	1,982	1,937
Total rental income	105,494	105,468	312,105	301,470
Office
Rental Income [Line Items]
Lease rental income	50,212	51,637	149,807	148,636
Retail
Rental Income [Line Items]
Lease rental income	24,766	24,310	74,151	71,637
Multifamily
Rental Income [Line Items]
Lease rental income	14,106	13,539	42,769	39,622
Mixed-use
Rental Income [Line Items]
Lease rental income	$ 2,955	$ 2,960	$ 8,929	$ 8,574

SEGMENT REPORTING - Operating Activity Within Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
OPERATING INCOME	$ 31,139	$ 31,003	$ 92,348	$ 87,661
Total segments’ profit	69,887	71,108	208,428	204,019
Office
Segment Reporting Information [Line Items]
Property revenue	51,948	53,250	155,137	153,412
Property expense	(15,361)	(14,551)	(45,075)	(41,944)
OPERATING INCOME	36,587	38,699	110,062	111,468
Retail
Segment Reporting Information [Line Items]
Property revenue	26,143	25,694	77,671	74,873
Property expense	(7,504)	(7,807)	(22,763)	(22,965)
OPERATING INCOME	18,639	17,887	54,908	51,908
Multifamily
Segment Reporting Information [Line Items]
Property revenue	15,152	14,748	45,908	42,851
Property expense	(7,262)	(6,871)	(20,579)	(19,171)
OPERATING INCOME	7,890	7,877	25,329	23,680
Mixed-use
Segment Reporting Information [Line Items]
Property revenue	17,955	17,331	49,957	45,512
Property expense	(11,184)	(10,686)	(31,828)	(28,549)
OPERATING INCOME	$ 6,771	$ 6,645	$ 18,129	$ 16,963

- Definition

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

+ References

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-Publisher FASB
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Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Section 50
-Paragraph 32
-Subparagraph (f)
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 17: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
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Reference 18: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 220
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-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1,2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2

+ Details

- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 924
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479941/924-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-5

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
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-Paragraph 30
-Subparagraph (a)
-Publisher FASB
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
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-Paragraph 32
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 41
-Subparagraph (a)
-Publisher FASB
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-4

+ Details

OTHER LIABILITIES AND DEFERRED CREDITS (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Other Liabilities Disclosure [Abstract]
Acquired below market leases, net	$ 17,296	$ 19,664
Prepaid rent and deferred revenue	17,778	17,971
Interest rate swap liability	0	196
Deferred compensation	2,501	2,411
Deferred tax liability	842	852
Straight-line rent liability	10,840	12,746
Lease liability	23,880	25,676
Other liabilities	57	61
Total other liabilities and deferred credits, net	$ 73,194	$ 79,577

DERIVATIVE AND HEDGING ACTIVITIES (Details)	9 Months Ended
DERIVATIVE AND HEDGING ACTIVITIES (Details)	Sep. 30, 2023 USD ($)
Fair Value
Estimated derivative reclassification from accumulated OCI to income	$ 400,000
Designated as Hedging Instrument \| Cash Flow Hedging \| American Assets Trust, L.P. \| Interest Rate Swap, 1/5/2027 \| Bank of America, N.A.
Notional Amount
Interest rate swap asset	50,000,000
Fair Value
Interest rate swap asset	4,758,000
Designated as Hedging Instrument \| Cash Flow Hedging \| American Assets Trust, L.P. \| Interest Rate Swap, 1/5/2027 \| Wells Fargo Bank, N.A.
Notional Amount
Interest rate swap asset	50,000,000
Fair Value
Interest rate swap asset	4,764,000
Designated as Hedging Instrument \| Cash Flow Hedging \| American Assets Trust, L.P. \| Interest Rate Swap, 1/5/2025 \| Wells Fargo Bank, N.A.
Notional Amount
Interest rate swap asset	150,000,000
Fair Value
Interest rate swap asset	2,406,000
Designated as Hedging Instrument \| Cash Flow Hedging \| American Assets Trust, L.P. \| Interest Rate Swap, 1/5/2025 \| Mizuho Capital Markets LLC
Notional Amount
Interest rate swap liability	75,000,000
Fair Value
Interest rate swap liability	$ 720,000

FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

9 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

Schedule of Financial Liabilities Measured at Fair Value on Recurring Basis

A summary of our financial liabilities that are measured at fair value on a recurring basis, by level within the fair value hierarchy is as follows (in thousands):


	September 30, 2023								December 31, 2022
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Deferred compensation liability	$	—	$	2,501	$	—	$	2,501	$	—	$	2,411	$	—	$	2,411
Interest rate swap asset	$	—	$	12,648	$	—	$	12,648	$	—	$	9,986	$	—	$	9,986
Interest rate swap liability	$	—	$	—	$	—	$	—	$	—	$	196	$	—	$	196

Schedule of Carrying Amount and Fair Value of Financial Instruments

A summary of the carrying amount and fair value of our secured financial instruments, all of which are based on Level 2 inputs, is as follows (in thousands):


	September 30, 2023				December 31, 2022
	Carrying Value		Fair Value		Carrying Value		Fair Value
Secured notes payable, net	$	74,646	$	72,976	$	74,578	$	75,129
Unsecured term loans, net	$	323,201	$	325,000	$	249,428	$	250,000
Unsecured senior guaranteed notes, net	$	798,670	$	751,414	$	798,362	$	761,470
Senior unsecured notes, net	$	492,436	$	373,445	$	491,663	$	403,500
Unsecured line of credit, net	$	—	$	—	$	34,057	$	36,000

OTHER INCOME (EXPENSE), NET (Tables)

9 Months Ended

Sep. 30, 2023

Other Income and Expenses [Abstract]

Schedule of Principal Components of Other Income (Expense), Net

The principal components of other income (expense), net, are as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Interest and investment income	$	614	$	60	$	1,507	$	117
Income tax expense	(293)		(240)		(750)		(640)
Other non-operating income	—		—		6,515		—
Total other income (expense), net	$	321	$	(180)	$	7,272	$	(523)

LEASES (Tables)

9 Months Ended

Sep. 30, 2023

Leases [Abstract]

Schedule of Current Minimum Future Rentals Under the Leases

As of September 30, 2023, minimum future rentals from noncancelable operating leases, before any reserve for uncollectible amounts and assuming no early lease terminations, at our office and retail properties and the retail portion of our mixed-use property are as follows (in thousands):


Year Ending December 31,
2023 (three months ending December 31, 2023)	$	59,230
2024	245,168
2025	230,418
2026	213,389
2027	187,633
Thereafter	367,831
Total	$	1,303,669

Schedule of Current Minimum Annual Payments Under the Leases

Current annual payments under the operating leases are as follows, as of September 30, 2023 (in thousands):


Year Ending December 31,
2023 (three months ending December 31, 2023)	$	844
2024	3,428
2025	3,531
2026	3,584
2027	3,584
Thereafter	12,543
Total lease payments	27,514
Imputed interest	(3,634)
Present value of lease liability	$	23,880

Schedule of Lease Costs Under Operating Leases and Supplemental Cash Flow Information of Leases

Lease costs under the operating leases are as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023			2022
Operating lease cost	$	932	$	844	$	2,786		$	2,533

Sublease income	(978)		(968)		(2,648)			(2,675)
Total lease cost (income)	$	(46)	$	(124)	$	138		$	(142)

Weighted-average remaining lease term - operating leases (in years)					7.75
Weighted-average discount rate - operating leases					3.19		%

Supplemental cash flow information and non-cash activity related to our operating leases are as follow (in thousands):


	Nine Months Ended September 30,
	2023		2022
Operating cash flow information:
Cash paid for amounts included in the measurement of lease liabilities	$	2,484	$	2,412

SEGMENT REPORTING - Net Real Estate and Secured Note Payable Balances (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Real estate, net	$ 2,715,269	$ 2,734,556
Secured Notes Payable	75,000	75,000
Debt issuance costs	1,457	0
American Assets Trust, L.P.
Segment Reporting Information [Line Items]
Real estate, net	2,715,269	2,734,556
Secured notes payable, net \| American Assets Trust, L.P.
Segment Reporting Information [Line Items]
Debt issuance costs	354	422
Office
Segment Reporting Information [Line Items]
Real estate, net	1,616,638	1,615,479
Secured Notes Payable	75,000	75,000
Retail
Segment Reporting Information [Line Items]
Real estate, net	567,354	579,219
Multifamily
Segment Reporting Information [Line Items]
Real estate, net	363,750	370,993
Mixed-use
Segment Reporting Information [Line Items]
Real estate, net	$ 167,527	$ 168,865

SEGMENT REPORTING - Capital Expenditures (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Capital Expenditures	$ 21,142	$ 27,155	$ 70,228	$ 94,467
Office
Segment Reporting Information [Line Items]
Capital Expenditures	16,105	24,107	56,642	80,824
Retail
Segment Reporting Information [Line Items]
Capital Expenditures	1,628	2,165	5,798	9,422
Multifamily
Segment Reporting Information [Line Items]
Capital Expenditures	1,977	686	4,506	3,572
Mixed-use
Segment Reporting Information [Line Items]
Capital Expenditures	$ 1,432	$ 197	$ 3,282	$ 649

COMMITMENTS AND CONTINGENCIES	9 Months Ended
COMMITMENTS AND CONTINGENCIES	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Legal We are sometimes involved in various disputes, lawsuits, warranty claims, environmental considerations, and other matters arising in the ordinary course of business. Management makes assumptions and estimates concerning the likelihood and amount of any potential loss relating to these matters. We are currently a party to various legal proceedings. We accrue a liability for litigation if an unfavorable outcome is probable and the amount of loss can be reasonably estimated. If an unfavorable outcome is probable and a reasonable estimate of the loss is a range, we accrue the best estimate within the range; however, if no amount within the range is a better estimate than any other amount, the minimum amount within the range is accrued. Legal fees related to litigation are expensed as incurred. We do not believe that the ultimate outcome of these matters, either individually or in the aggregate, could have a material adverse effect on our financial position or overall trends in results of operations; however, litigation is subject to inherent uncertainties. Also, under our leases, tenants are typically obligated to indemnify us from and against all liabilities, costs and expenses imposed upon or asserted against us as owner of the properties due to certain matters relating to the operation of the properties by the tenant. Commitments See Footnote 12 for description of our leases, as a lessee. We have management agreements with Outrigger Hotels & Resorts or an affiliate thereof (“Outrigger”) pursuant to which Outrigger manages each of the retail and hotel portions of the Waikiki Beach Walk property. Under the management agreement with Outrigger relating to the retail portion of Waikiki Beach Walk (the “retail management agreement”), we pay Outrigger a monthly management fee of 3.0% of net revenues from the retail portion of Waikiki Beach Walk. Pursuant to the terms of the retail management agreement, if the agreement is terminated in certain instances, including our election not to repair damage or destruction at the property, a condemnation or our failure to make required working capital infusions, we would be obligated to pay Outrigger a termination fee equal to the sum of the management fees paid for the two months immediately preceding the termination date. The retail management agreement may not be terminated by us or by Outrigger without cause. Under our management agreement with Outrigger relating to the hotel portion of Waikiki Beach Walk (the “hotel management agreement”), we pay Outrigger a monthly management fee of 6.0% of the hotel's gross operating profit, as well as 3.0% of the hotel's gross revenues; provided that the aggregate management fee payable to Outrigger for any year shall not exceed 3.5% of the hotel's gross revenues for such fiscal year. Pursuant to the terms of the hotel management agreement, if the agreement is terminated in certain instances, including upon a transfer by us of the hotel or upon a default by us under the hotel management agreement, we would be required to pay a cancellation fee calculated by multiplying (1) the management fees for the previous 12 months by (2) four, three, two or one, if the agreement is terminated in the twelfth, thirteenth, fourteenth or fifteenth year, respectively, of its term. The hotel management agreement may not be terminated by us or by Outrigger without cause. Additionally, we have a management agreement with Outrigger pursuant to which Outrigger manages our Waikele Center and Shops at Kalakaua. In connection with such management agreement, we pay Outrigger a fixed management fee of $12,000 per month in the aggregate plus additional amounts for any lease renewal services provided by Outrigger at our request. This management agreement can be terminated by us at any time and for any reason on 30 days' notice without any cancellation or termination fees. A wholly owned subsidiary of our Operating Partnership, WBW Hotel Lessee LLC, entered into a franchise license agreement with Embassy Suites Franchise LLC, the franchisor of the brand “Embassy Suites™,” to obtain the non-exclusive right to operate the hotel under the Embassy SuitesTM brand for 20 years. The franchise license agreement provides that WBW Hotel Lessee LLC must comply with certain management, operational, record keeping, accounting, reporting and marketing standards and procedures. In connection with this agreement, we are also subject to the terms of a product improvement plan pursuant to which we expect to undertake certain actions to ensure that our hotel's infrastructure is maintained in compliance with the franchisor's brand standards. In addition, we must pay to Embassy Suites Franchise LLC a monthly franchise royalty fee equal to 5.0% of the hotel's gross room revenue, as well as a monthly program fee equal to 4.0% of the hotel's gross room revenue. If the franchise license is terminated due to our failure to make required improvements or to otherwise comply with its terms, we may be liable to the franchisor for a termination payment, which could be as high as $7.4 million based on operating performance through September 30, 2023. Our Del Monte Center property has ongoing environmental remediation related to ground water contamination. The environmental issue existed at purchase and remains in remediation. The final stages of the remediation will include routine, long term ground monitoring by the appropriate regulatory agency over the next five to seven years. The work performed is financed through an escrow account funded by the seller upon purchase of Del Monte Center. We believe the funds in the escrow account are sufficient for the remaining work to be performed. However, if further work is required that costs more than the remaining escrow funds, we may be required to pay such overage, although we may have a contractual claim for such costs against the prior owner or our environmental remediation consultant. Concentrations of Credit Risk Our properties are located in Southern California, Northern California, Washington, Oregon, Texas and Hawaii. The ability of the tenants to honor the terms of their respective leases is dependent upon the economic, regulatory, social, and health factors affecting the markets in which the tenants operate. Fifteen of our consolidated properties are located in Southern California, which exposes us to greater economic risks than if we owned a more geographically diverse portfolio. Tenants in the retail industry accounted for 23.6% of total revenues for the nine months ended September 30, 2023. This makes us susceptible to demand for retail rental space and subject to the risks associated with an investment in real estate with a concentration of tenants in the retail industry. Furthermore, tenants in the office industry accounted for 47.2% of total revenues for the nine months ended September 30, 2023. This makes us susceptible to demand for office rental space and subject to the risks associated with an investment in real estate with a concentration of tenants in the office industry. For the nine months ended September 30, 2023 and 2022, no tenant accounted for more than 10% of our total rental revenue.

OTHER INCOME (EXPENSE), NET

9 Months Ended

Sep. 30, 2023

Other Income and Expenses [Abstract]

OTHER INCOME (EXPENSE), NET

The principal components of other income (expense), net, are as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Interest and investment income	$	614	$	60	$	1,507	$	117
Income tax expense	(293)		(240)		(750)		(640)
Other non-operating income	—		—		6,515		—
Total other income (expense), net	$	321	$	(180)	$	7,272	$	(523)

LEASES - Minimum Future Rentals from Noncancelable Operating Leases (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Leases [Abstract]
2023 (three months ending December 31, 2023)	$ 59,230
2024	245,168
2025	230,418
2026	213,389
2027	187,633
Thereafter	367,831
Total	$ 1,303,669

Consolidated Balance Sheets - LP (Parenthetical) - American Assets Trust, L.P. - shares	Sep. 30, 2023	Dec. 31, 2022
Limited partners' capital, units issued (in shares)	16,181,537	16,181,537
Limited partners' capital, units outstanding (in shares)	16,181,537	16,181,537
General partners' capital, units issued (in shares)	60,724,630	60,718,653
General partners' capital, units outstanding (in shares)	60,724,630	60,718,653

DEBT - Summary of Total Secured Notes Payable Outstanding (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Debt issuance costs, net of accumulated amortization of $519 and $452, respectively	$ (1,457)	$ 0
Debt issuance costs, accumulated amortization	1,134	0
American Assets Trust, L.P. \| Secured notes payable, net
Debt Instrument [Line Items]
Principal Balance	75,000	75,000
Debt issuance costs, net of accumulated amortization of $519 and $452, respectively	(354)	(422)
Total Notes Payable	74,646	74,578
Debt issuance costs, accumulated amortization	519	452
American Assets Trust, L.P. \| Secured notes payable, net \| 5.08% City Center Bellevue, October 2027
Debt Instrument [Line Items]
Principal Balance	$ 75,000	$ 75,000
Stated Interest Rate	5.08%

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482900/835-30-50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
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-Subparagraph (SX 210.4-08(f))
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E

Reference 20: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1E
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E

Reference 21: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F

Reference 22: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F

Reference 23: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F

Reference 24: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F

Reference 25: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1I
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

+ Details

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References + Details

DERIVATIVE AND HEDGING ACTIVITIES (Tables)

9 Months Ended

Sep. 30, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Interest Rate Derivatives

The following is a summary of the terms of our outstanding interest rate swaps as of September 30, 2023 (dollars in thousands):


Swap Counterparty	Notional Amount		Effective Date	Maturity Date	Fair Value
Bank of America, N.A.	$	50,000	1/14/2022	1/5/2027	$	4,758
Wells Fargo Bank, N.A.	$	50,000	1/14/2022	1/5/2027	$	4,764
Wells Fargo Bank, N.A.	$	150,000	1/5/2023	1/5/2025	$	2,406
Mizuho Capital Markets LLC	$	75,000	1/5/2023	1/5/2025	$	720

COMPONENTS OF RENTAL INCOME AND EXPENSE (Tables)

9 Months Ended

Sep. 30, 2023

Leases [Abstract]

Schedule of Principal Components of Rental Income

The principal components of rental income are as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Lease rental income
Office	$	50,212	$	51,637	$	149,807	$	148,636
Retail	24,766		24,310		74,151		71,637
Multifamily	14,106		13,539		42,769		39,622
Mixed-use	2,955		2,960		8,929		8,574
Percentage rent	905		978		2,065		2,216
Hotel revenue	11,893		11,379		32,402		28,848
Other	657		665		1,982		1,937
Total rental income	$	105,494	$	105,468	$	312,105	$	301,470

Schedule of Principal Components of Rental Expenses

The principal components of rental expenses are as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Rental operating	$	13,428	$	12,272	$	38,779	$	34,795
Hotel operating	7,675		7,230		21,935		19,352
Repairs and maintenance	5,652		5,799		16,298		15,868
Marketing	491		489		1,568		1,477
Rent	885		815		2,651		2,405
Hawaii excise tax	1,147		1,231		3,134		2,963
Management fees	634		602		1,763		1,576
Total rental expenses	$	29,912	$	28,438	$	86,128	$	78,436

ACQUIRED IN-PLACE LEASES AND ABOVE/BELOW MARKET LEASES (Tables)

9 Months Ended

Sep. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Acquired Lease Intangibles Included in Other Assets and Other Liabilities

The following summarizes our acquired lease intangibles and leasing costs, which are included in other assets and other liabilities and deferred credits, as of September 30, 2023 and December 31, 2022 (in thousands):


	September 30, 2023		December 31, 2022
In-place leases	$	57,292	$	58,119
Accumulated amortization	(37,527)		(34,593)
Above market leases	1,885		1,885
Accumulated amortization	(1,809)		(1,778)
Acquired lease intangible assets, net	$	19,841	$	23,633
Below market leases	$	52,417	$	52,832
Accumulated accretion	(35,121)		(33,168)
Acquired lease intangible liabilities, net	$	17,296	$	19,664

DEBT - Summary of Total Unsecured Notes Payable Outstanding (Details)						1 Months Ended
	Jan. 05, 2023 USD ($) extension	Jul. 17, 2019 USD ($)	Jun. 23, 2017 USD ($)	May 11, 2017 USD ($)	Jan. 18, 2017 USD ($)	Jan. 04, 2023 USD ($)	Sep. 30, 2023 USD ($) interest_rate_swap_agreement	Dec. 31, 2022 USD ($)	Jan. 26, 2021 USD ($)	Mar. 01, 2018	Jan. 09, 2018 USD ($)
Debt Instrument [Line Items]
Debt discount and issuance costs, net of accumulated amortization of $6,609 and $11,709, respectively							$ (1,457,000)	$ 0
Debt issuance costs, accumulated amortization							1,134,000	0
American Assets Trust, L.P. \| Forward Contracts
Debt Instrument [Line Items]
Loss on derivative settlement			$ 500,000
Gain on derivative settlement		$ 500,000		$ 700,000	$ 10,400,000
American Assets Trust, L.P. \| Unsecured term loans, net
Debt Instrument [Line Items]
Principal Balance							1,625,000,000	1,550,000,000
Debt discount and issuance costs, net of accumulated amortization of $6,609 and $11,709, respectively							(10,693,000)	(10,547,000)
Total Notes Payable							1,614,307,000	1,539,453,000
Debt issuance costs, accumulated amortization							$ 6,609,000	11,709,000
American Assets Trust, L.P. \| Term Loan A \| Interest Rate Swap
Debt Instrument [Line Items]
Number of interest rate swap agreements \| interest_rate_swap_agreement							2
Derivative fixed interest rate							2.70%
American Assets Trust, L.P. \| Term Loan A \| Unsecured term loans, net
Debt Instrument [Line Items]
Principal Balance							$ 100,000,000	100,000,000
American Assets Trust, L.P. \| Term Loan B
Debt Instrument [Line Items]
Face amount of debt	$ 150,000,000
American Assets Trust, L.P. \| Term Loan B \| Interest Rate Swap
Debt Instrument [Line Items]
Interest rate during period						5.32%
American Assets Trust, L.P. \| Term Loan B \| Interest Rate Swap \| First Year
Debt Instrument [Line Items]
Derivative fixed interest rate	5.47%									2.65%
American Assets Trust, L.P. \| Term Loan B \| Interest Rate Swap \| Second Year
Debt Instrument [Line Items]
Derivative fixed interest rate	5.57%
American Assets Trust, L.P. \| Term Loan B \| Unsecured term loans, net
Debt Instrument [Line Items]
Principal Balance							150,000,000	100,000,000
American Assets Trust, L.P. \| Term Loan C
Debt Instrument [Line Items]
Face amount of debt	$ 75,000,000
American Assets Trust, L.P. \| Term Loan C \| Interest Rate Swap
Debt Instrument [Line Items]
Derivative fixed interest rate										2.64%
Interest rate during period						5.32%
American Assets Trust, L.P. \| Term Loan C \| Interest Rate Swap \| First Year
Debt Instrument [Line Items]
Derivative fixed interest rate	5.47%
American Assets Trust, L.P. \| Term Loan C \| Interest Rate Swap \| Second Year
Debt Instrument [Line Items]
Derivative fixed interest rate	5.57%
American Assets Trust, L.P. \| Term Loan C \| Unsecured term loans, net
Debt Instrument [Line Items]
Principal Balance							$ 75,000,000	50,000,000
American Assets Trust, L.P. \| Senior Guaranteed Notes, Series F \| Forward Contracts
Debt Instrument [Line Items]
Effective rate of debt instrument							3.85%
American Assets Trust, L.P. \| Senior Guaranteed Notes, Series F \| Unsecured term loans, net
Debt Instrument [Line Items]
Principal Balance							$ 100,000,000	100,000,000
Stated Interest Rate							3.78%
American Assets Trust, L.P. \| Senior Guaranteed Notes, Series B \| Unsecured term loans, net
Debt Instrument [Line Items]
Principal Balance							$ 100,000,000	100,000,000
Stated Interest Rate							4.45%
American Assets Trust, L.P. \| Senior Guaranteed Notes, Series C \| Unsecured term loans, net
Debt Instrument [Line Items]
Principal Balance							$ 100,000,000	100,000,000
Stated Interest Rate							4.50%
American Assets Trust, L.P. \| Senior Guaranteed Notes, Series D \| Forward Contracts
Debt Instrument [Line Items]
Effective rate of debt instrument							3.87%
American Assets Trust, L.P. \| Senior Guaranteed Notes, Series D \| Unsecured term loans, net
Debt Instrument [Line Items]
Principal Balance							$ 250,000,000	250,000,000
Stated Interest Rate							4.29%
American Assets Trust, L.P. \| Senior Guaranteed Notes, Series E \| Forward Contracts
Debt Instrument [Line Items]
Effective rate of debt instrument							4.18%
American Assets Trust, L.P. \| Senior Guaranteed Notes, Series E \| Unsecured term loans, net
Debt Instrument [Line Items]
Principal Balance							$ 100,000,000	100,000,000
Stated Interest Rate							4.24%
American Assets Trust, L.P. \| Senior Guaranteed Notes, Series G \| Forward Contracts
Debt Instrument [Line Items]
Effective rate of debt instrument							3.88%
American Assets Trust, L.P. \| Senior Guaranteed Notes, Series G \| Unsecured term loans, net
Debt Instrument [Line Items]
Principal Balance							$ 150,000,000	150,000,000
Stated Interest Rate							3.91%
American Assets Trust, L.P. \| 3.375% Senior Unsecured Notes
Debt Instrument [Line Items]
Stated Interest Rate									3.375%
American Assets Trust, L.P. \| 3.375% Senior Unsecured Notes \| Unsecured term loans, net
Debt Instrument [Line Items]
Principal Balance							$ 500,000,000	$ 500,000,000
Stated Interest Rate							3.375%
Face amount of debt									$ 500,000,000
American Assets Trust, L.P. \| Term Loan B & Term Loan C
Debt Instrument [Line Items]
Debt extension options \| extension	1
Extension term	12 months
American Assets Trust, L.P. \| Term Loan B & Term Loan C \| Unsecured term loans, net
Debt Instrument [Line Items]
Debt extension options \| extension	1
Extension term	12 months
Face amount of debt	$ 225,000,000					$ 150,000,000					$ 150,000,000

RELATED PARTY TRANSACTIONS	9 Months Ended
RELATED PARTY TRANSACTIONS	Sep. 30, 2023
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	RELATED PARTY TRANSACTIONS During the first quarter of 2019, we terminated a lease agreement with American Assets, Inc. ("AAI"), an entity owned and controlled by Ernest Rady, our Chief Executive Officer and Chairman of the Board, and entered into a new lease agreement with AAI for office space at Torrey Reserve Campus. Rents commenced on March 1, 2019 for an initial lease term of three years at an average annual rental rate of $0.2 million. During the third quarter of 2020, we entered into a new lease with AAI for office space at Torrey Point to replace its existing lease at Torrey Reserve Campus. Rents commenced on March 1, 2021 for an initial lease term of ten years at an average annual rental rate of $0.2 million. Rental revenue recognized on the AAI leases of $0.2 million and $0.2 million for the nine months ended September 30, 2023 and 2022, respectively, is included in rental income on the statements of comprehensive income. On occasion, the company utilizes aircraft services provided by AAI Aviation, Inc. ("AAIA"), an entity owned and controlled by Mr. Rady. For the nine months ended September 30, 2023 and 2022, we incurred approximately $0.1 million and $0.2 million of expenses, respectively, related to aircraft services of AAIA or reimbursement to Mr. Rady (or his trust) for use of the aircraft owned by AAIA. These expenses are recorded as general and administrative expenses in our consolidated statements of comprehensive income. The Waikiki Beach Walk entities have a 47.7% investment in WBW CHP LLC, an entity that was formed to, among other things, construct a chilled water plant to provide air conditioning to the property and other adjacent facilities. The operating expenses of WBW CHP LLC are recovered through reimbursements from its members, and reimbursements to WBW CHP LLC of $0.9 million and $0.9 million for the nine months ended September 30, 2023 and 2022, respectively, are included in rental expenses on the consolidated statements of comprehensive income.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-5

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-6

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(g)(3))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(e))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//850/tableOfContent

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
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-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-6

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

+ Details

PARTNERS' CAPITAL OF AMERICAN ASSETS TRUST, L.P.	9 Months Ended
PARTNERS' CAPITAL OF AMERICAN ASSETS TRUST, L.P.	Sep. 30, 2023
Equity [Abstract]
PARTNERS' CAPITAL OF AMERICAN ASSETS TRUST, L.P.	PARTNERS' CAPITAL OF AMERICAN ASSETS TRUST, L.P. Noncontrolling interests in our Operating Partnership are interests in the Operating Partnership that are not owned by us. Noncontrolling interests consisted of 16,181,537 common units (the “noncontrolling common units”), and represented approximately 21.2% of the ownership interests in our Operating Partnership at September 30, 2023. Common units and shares of our common stock have essentially the same economic characteristics in that common units and shares of our common stock share equally in the total net income or loss distributions of our Operating Partnership. Investors who own common units have the right to cause our Operating Partnership to redeem any or all of their common units for cash equal to the then-current market value of one share of our common stock, or, at our election, shares of our common stock on a one-for-one basis. During the nine months ended September 30, 2023, no common units were converted into shares of our common stock. Earnings Per Unit of the Operating Partnership Basic earnings per unit (“EPU”) of the Operating Partnership is computed by dividing income applicable to unitholders by the weighted average Operating Partnership units outstanding, as adjusted for the effect of participating securities. Operating Partnership units granted in equity-based payment transactions that have non-forfeitable dividend equivalent rights are considered participating securities prior to vesting. The impact of unvested Operating Partnership unit awards on EPU has been calculated using the two-class method whereby earnings are allocated to the unvested Operating Partnership unit awards based on distributions and the unvested Operating Partnership units’ participation rights in undistributed earnings. The calculation of diluted EPU for the three months ended September 30, 2023 and 2022 does not include the weighted average of 573,949 and 483,110 unvested outstanding Operating Partnership units, respectively, as these equity securities are either considered contingently issuable or the effect of including these equity securities was anti-dilutive to income from continuing operations and net income attributable to the unitholders. The calculation of diluted EPU for the nine months ended September 30, 2023 and 2022 does not include the weighted average of 573,070 and 483,895 unvested outstanding Operating Partnership units, respectively, as these equity securities are either considered contingently issuable or the effect of including these equity securities was anti-dilutive to income from continuing operations and net income attributable to the unitholders.

EQUITY OF AMERICAN ASSETS TRUST, INC.

9 Months Ended

Sep. 30, 2023

Equity [Abstract]

EQUITY OF AMERICAN ASSETS TRUST, INC.

Stockholders' Equity

On December 3, 2021, we entered into an at-the-market ("ATM") equity program with five sales agents in which we may, from time to time, offer and sell shares of our common stock having an aggregate offering price of up to $250 million. The sales of shares of our common stock made through the ATM equity program, as amended, are made in "at-the-market" offerings as defined in Rule 415 of the Securities Act of 1933, as amended. For the nine months ended September 30, 2023, no shares of common stock were sold through the ATM equity program.

We intend to use the net proceeds from the ATM equity program to fund our development or redevelopment activities, repay amounts outstanding from time to time under our revolving line of credit or other debt financing obligations, fund potential acquisition opportunities and/or for general corporate purposes. As of September 30, 2023, we had the capacity to issue up to $250 million in shares of our common stock under our current ATM equity program. Actual future sales will depend on a variety of factors including, but not limited to, market conditions, the trading price of our common stock and our capital needs. As of September 30, 2023, we have no obligation to sell the remaining shares available for sale under the ATM equity program.

Dividends

The following table lists the dividends declared and paid on our shares of common stock and noncontrolling common units during the nine months ended September 30, 2023:

Period

Amount per
Share/Unit

Period Covered

Dividend Paid Date

First Quarter 2023

0.33

January 1, 2023 to March 31, 2023

March 23, 2023

Second Quarter 2023

0.33

April 1, 2023 to June 30, 2023

June 22, 2023

Third Quarter 2023

0.33

July 1, 2023 to September 30, 2023

September 21, 2023

Taxability of Dividends

Earnings and profits, which determine the taxability of distributions to stockholders and holders of common units, may differ from income reported for financial reporting purposes due to the differences for federal income tax purposes in the treatment of revenue recognition and compensation expense and in the basis of depreciable assets and estimated useful lives used to compute depreciation.

Stock-Based Compensation

We follow the FASB guidance related to stock-based compensation which establishes financial accounting and reporting standards for stock-based employee compensation plans, including all arrangements by which employees receive shares of stock or other equity instruments of the employer. The guidance also defines a fair value-based method of accounting for an employee stock award or similar equity instrument.

The following table summarizes the activity of restricted stock awards during the nine months ended September 30, 2023:


	Units	Weighted Average Grant Date Fair Value
Nonvested at January 1, 2023	574,044	$	20.98
Granted	10,348	19.33
Vested	(6,072)	32.94
Forfeited	(4,371)	20.92
Nonvested at September 30, 2023	573,949	$	20.87

We recognize noncash compensation expense ratably over the vesting period, and accordingly, we recognized $2.1 million and $2.0 million in noncash compensation expense for the three months ended September 30, 2023 and 2022, respectively, which is included in general and administrative expenses on the consolidated statements of comprehensive income. We recognized $6.3 million and $5.5 million in noncash compensation expense for the nine months ended September 30, 2023 and 2022, respectively. Unrecognized compensation expense was $5.8 million at September 30, 2023.

Earnings Per Share

We have calculated earnings per share (“EPS”) under the two-class method. The two-class method is an earnings allocation methodology whereby EPS for each class of common stock and participating security is calculated according to dividends declared and participation rights in undistributed earnings. The weighted average unvested shares outstanding, which are considered participating securities, were 573,949 and 483,110 for the three months ended September 30, 2023 and 2022, respectively, and 573,070 and 483,895 for the nine months ended September 30, 2023 and 2022, respectively. Therefore, we have allocated our earnings for basic and diluted EPS between common shares and unvested shares as these unvested shares have nonforfeitable dividend equivalent rights.

Diluted EPS is calculated by dividing the net income applicable to common stockholders for the period by the weighted average number of common and dilutive instruments outstanding during the period using the treasury stock method. For the three and nine months ended September 30, 2023 and 2022, diluted shares exclude incentive restricted stock as these awards are considered contingently issuable. Additionally, the unvested restricted stock awards subject to time vesting are anti-dilutive for all periods presented, and accordingly, have been excluded from the weighted average common shares used to compute diluted EPS.

The computation of basic and diluted EPS is presented below (dollars in thousands, except share and per share amounts):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
NUMERATOR
Net income	$	15,135	$	16,369	$	51,198	$	43,471
Less: Net income attributable to restricted shares	(189)		(155)		(568)		(464)
Less: Income from operations attributable to unitholders in the Operating Partnership	(3,168)		(3,442)		(10,733)		(9,130)

Net income attributable to common stockholders—basic	$	11,778	$	12,772	$	39,897	$	33,877
Income from operations attributable to American Assets Trust, Inc. common stockholders—basic	$	11,778	$	12,772	$	39,897	$	33,877
Plus: Income from operations attributable to unitholders in the Operating Partnership	3,168		3,442		10,733		9,130

Net income attributable to common stockholders—diluted	$	14,946	$	16,214	$	50,630	$	43,007
DENOMINATOR
Weighted average common shares outstanding—basic	60,150,681		60,044,117		60,147,189		60,041,034
Effect of dilutive securities—conversion of Operating Partnership units	16,181,537		16,181,537		16,181,537		16,181,537
Weighted average common shares outstanding—diluted	76,332,218		76,225,654		76,328,726		76,222,571

Earnings per common share, basic	$	0.20	$	0.21	$	0.66	$	0.56
Earnings per common share, diluted	$	0.20	$	0.21	$	0.66	$	0.56

PARTNERS' CAPITAL OF AMERICAN ASSETS TRUST, L.P. (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2023 shares	Sep. 30, 2022 shares	Sep. 30, 2023 shares	Sep. 30, 2022 shares
Capital Unit [Line Items]
Antidilutive securities excluded from computation of EPS (in shares)	573,949	483,110	573,070	483,895
American Assets Trust, L.P.
Capital Unit [Line Items]
Percentage of ownership interests classified as noncontrolling	21.20%		21.20%
American Assets Trust, L.P.
Capital Unit [Line Items]
Noncontrolling common units (in shares)	16,181,537		16,181,537
American Assets Trust, L.P. \| Operating Partnership Units
Capital Unit [Line Items]
Antidilutive securities excluded from computation of EPS (in shares)	573,949	483,110	573,070	483,895
American Assets Trust, L.P. \| Common Shares
Capital Unit [Line Items]
Conversion of operating partnership units (in shares)			0
American Assets Trust, L.P. \| Limited Partners
Capital Unit [Line Items]
Common unit conversion ratio			1

Consolidated Statements of Comprehensive Income (Unaudited) - LP - USD ($)
$ in Thousands

3 Months Ended

9 Months Ended

Sep. 30, 2023

Sep. 30, 2022

Sep. 30, 2023

Sep. 30, 2022

REVENUE:

Rental income

$ 105,494

$ 105,468

$ 312,105

$ 301,470

Other property income

5,704

5,555

16,568

15,178

Total revenue

111,198

111,023

328,673

316,648

EXPENSES:

Rental expenses

29,912

28,438

86,128

78,436

Real estate taxes

11,399

11,477

34,117

34,193

General and administrative

8,880

8,376

26,488

23,130

Depreciation and amortization

29,868

31,729

89,592

93,228

Total operating expenses

80,059

80,020

236,325

228,987

OPERATING INCOME

31,139

31,003

92,348

87,661

Interest expense, net

(16,325)

(14,454)

(48,422)

(43,667)

Other income (expense), net

321

(180)

7,272

(523)

NET INCOME

15,135

16,369

51,198

43,471

Net income attributable to restricted shares

(189)

(155)

(568)

(464)

NET INCOME ATTRIBUTABLE TO AMERICAN ASSETS TRUST

$ 11,778

$ 12,772

$ 39,897

$ 33,877

EARNINGS PER COMMON SHARE, BASIC

Earnings per unit, basic (in USD per share)

$ 0.20

$ 0.21

$ 0.66

$ 0.56

Weighted average units outstanding - basic (in shares)

60,150,681

60,044,117

60,147,189

60,041,034

EARNINGS PER COMMON SHARE, DILUTED

Earnings per unit, diluted (in USD per share)

$ 0.20

$ 0.21

$ 0.66

$ 0.56

Weighted average units outstanding - diluted (in shares)

76,332,218

76,225,654

76,328,726

76,222,571

COMPREHENSIVE INCOME

Net income

$ 15,135

$ 16,369

$ 51,198

$ 43,471

Other comprehensive income - unrealized income on swap derivatives during the period

768

4,207

2,859

13,117

Reclassification of amortization of forward-starting swap included in interest expense

(99)

(275)

Comprehensive income

15,804

20,301

53,006

55,763

Comprehensive income attributable to American Assets Trust, Inc.

12,494

16,024

41,892

44,024

Interest Expense

COMPREHENSIVE INCOME

Reclassification of amortization of forward-starting swap included in interest expense

(99)

(275)

(1,051)

(825)

American Assets Trust, L.P.

REVENUE:

Rental income

105,494

105,468

312,105

301,470

Other property income

5,704

5,555

16,568

15,178

Total revenue

111,198

111,023

328,673

316,648

EXPENSES:

Rental expenses

29,912

28,438

86,128

78,436

Real estate taxes

11,399

11,477

34,117

34,193

General and administrative

8,880

8,376

26,488

23,130

Depreciation and amortization

29,868

31,729

89,592

93,228

Total operating expenses

80,059

80,020

236,325

228,987

OPERATING INCOME

31,139

31,003

92,348

87,661

Interest expense, net

(16,325)

(14,454)

(48,422)

(43,667)

Other income (expense), net

321

(180)

7,272

(523)

NET INCOME

15,135

16,369

51,198

43,471

Net income attributable to restricted shares

(189)

(155)

(568)

(464)

NET INCOME ATTRIBUTABLE TO AMERICAN ASSETS TRUST

$ 14,946

$ 16,214

$ 50,630

$ 43,007

EARNINGS PER COMMON SHARE, BASIC

Earnings per unit, basic (in USD per share)

$ 0.20

$ 0.21

$ 0.66

$ 0.56

Weighted average units outstanding - basic (in shares)

76,332,218

76,225,654

76,328,726

76,222,571

EARNINGS PER COMMON SHARE, DILUTED

Earnings per unit, diluted (in USD per share)

$ 0.20

$ 0.21

$ 0.66

$ 0.56

Weighted average units outstanding - diluted (in shares)

76,332,218

76,225,654

76,328,726

76,222,571

DISTRIBUTIONS PER UNIT (in USD per share)

$ 0.33

$ 0.32

$ 0.99

$ 0.96

COMPREHENSIVE INCOME

Net income

$ 15,135

$ 16,369

$ 51,198

$ 43,471

Other comprehensive income - unrealized income on swap derivatives during the period

768

4,207

2,859

13,117

Reclassification of amortization of forward-starting swap included in interest expense

(99)

(275)

Comprehensive income

15,804

20,301

53,006

55,763

American Assets Trust, L.P. | Limited Partners

EXPENSES:

NET INCOME

^[1]

3,168

3,442

COMPREHENSIVE INCOME

Net income

^[1]

3,168

3,442

Comprehensive income attributable to American Assets Trust, Inc.

(3,310)

(4,277)

(11,114)

(11,739)

American Assets Trust, L.P. | General Partners

EXPENSES:

NET INCOME

^[2]

11,967

12,927

COMPREHENSIVE INCOME

Net income

^[2]

11,967

12,927

Comprehensive income attributable to American Assets Trust, Inc.

12,494

16,024

41,892

44,024

American Assets Trust, L.P. | Interest Expense

COMPREHENSIVE INCOME

Reclassification of amortization of forward-starting swap included in interest expense

$ (99)

$ (275)

$ (1,051)

$ (825)

[1]	Consists of limited partnership interests held by third parties.
[2]	Consists of general partnership interests held by American Assets Trust, Inc.

LEASES - Narrative (Details)	9 Months Ended
LEASES - Narrative (Details)	Sep. 30, 2023
Apartments
Lessor, Lease, Description [Line Items]
Term of contract	12 months
Minimum
Lessor, Lease, Description [Line Items]
Term of lease extension option	3 years
Lease extension options exercise period	6 months
Minimum \| Office And Retail Sites
Lessor, Lease, Description [Line Items]
Term of contract	3 years
Minimum \| Apartments
Lessor, Lease, Description [Line Items]
Term of contract	7 months
Maximum
Lessor, Lease, Description [Line Items]
Term of lease extension option	10 years
Lease extension options exercise period	12 months
Maximum \| Office And Retail Sites
Lessor, Lease, Description [Line Items]
Term of contract	10 years
Maximum \| Apartments
Lessor, Lease, Description [Line Items]
Term of contract	15 months

DERIVATIVE AND HEDGING ACTIVITIES

9 Months Ended

Sep. 30, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVE AND HEDGING ACTIVITIES

DERIVATIVE AND HEDGING ACTIVITIESOur objectives in using interest rate derivatives are to add stability to interest expense and to manage our exposure to interest rate movements. To accomplish these objectives, we primarily use interest rate swaps as part of our interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty in exchange for us making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.

The following is a summary of the terms of our outstanding interest rate swaps as of September 30, 2023 (dollars in thousands):


Swap Counterparty	Notional Amount		Effective Date	Maturity Date	Fair Value
Bank of America, N.A.	$	50,000	1/14/2022	1/5/2027	$	4,758
Wells Fargo Bank, N.A.	$	50,000	1/14/2022	1/5/2027	$	4,764
Wells Fargo Bank, N.A.	$	150,000	1/5/2023	1/5/2025	$	2,406
Mizuho Capital Markets LLC	$	75,000	1/5/2023	1/5/2025	$	720

The effective portion of changes in the fair value of the derivatives that are designated as cash flow hedges are being recorded in accumulated other comprehensive income and will be subsequently reclassified into earnings during the period in which the hedged forecasted transaction affects earnings for as long as hedged cash flows remain probable. During the next twelve months, we estimate the cash flow hedges in place will reduce interest expense by approximately $0.4 million.

The valuation of these instruments is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of the derivative. This analysis reflects the contractual terms of the derivative, including the period to maturity, and counterparty credit risk and uses observable market-based inputs, including interest rate curves, and implied volatilities. The fair value of the interest rate swap is determined using the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts). The variable cash payments (or receipts) are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves.

COMPONENTS OF RENTAL INCOME AND EXPENSE - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Leases [Abstract]
Recognition of straight-line rents	$ 0.4	$ 2.5	$ 3.6	$ 6.3
Recognition of amortization of above and below market leases	$ 0.8	$ 0.8	$ 2.3	$ 2.5

DEBT

9 Months Ended

Sep. 30, 2023

Debt Disclosure [Abstract]

DEBT

Debt of American Assets Trust, Inc.

American Assets Trust, Inc. does not hold any indebtedness. All debt is held directly or indirectly by the Operating Partnership; however, American Assets Trust, Inc. has guaranteed the Operating Partnership's obligations under the (i) amended and restated credit facility, (ii) term loans, (iii) senior guaranteed notes, and (iv) senior unsecured notes.

Debt of American Assets Trust, L.P.

Secured notes payable

The following table is a summary of our total secured notes payable outstanding as of September 30, 2023 and December 31, 2022 (in thousands):


	Principal Balance as of				Stated Interest Rate		Stated Maturity Date
Description of Debt	September 30, 2023		December 31, 2022		as of September 30, 2023


City Center Bellevue (1)	$	75,000	$	75,000	5.08	%	October 1, 2027
	75,000		75,000

Debt issuance costs, net of accumulated amortization of $519 and $452, respectively	(354)		(422)
Total Secured Notes Payable Outstanding	$	74,646	$	74,578

(1)Interest only.

The Operating Partnership has provided a carve-out guarantee on the mortgage at City Center Bellevue. Certain loans require the Operating Partnership to comply with various financial covenants. As of September 30, 2023, the Operating Partnership was in compliance with these financial covenants.

Unsecured notes payable

The following table is a summary of the Operating Partnership's total unsecured notes payable outstanding as of September 30, 2023 and December 31, 2022 (in thousands):


Description of Debt	Principal Balance as of				Stated Interest Rate			Stated Maturity Date
	September 30, 2023		December 31, 2022		as of September 30, 2023
Term Loan A	$	100,000	$	100,000	Variable		(1)	January 5, 2027

Term Loan B	150,000		100,000		Variable		(3)	January 5, 2025	(2)
Term Loan C	75,000		50,000		Variable		(4)	January 5, 2025	(2)
Senior Guaranteed Notes, Series F	100,000		100,000		3.78	%	(5)	July 19, 2024
Senior Guaranteed Notes, Series B	100,000		100,000		4.45	%		February 2, 2025
Senior Guaranteed Notes, Series C	100,000		100,000		4.50	%		April 1, 2025
Senior Guaranteed Notes, Series D	250,000		250,000		4.29	%	(6)	March 1, 2027
Senior Guaranteed Notes, Series E	100,000		100,000		4.24	%	(7)	May 23, 2029
Senior Guaranteed Notes, Series G	150,000		150,000		3.91	%	(8)	July 30, 2030
3.375% Senior Unsecured Notes	500,000		500,000		3.38	%		February 1, 2031
	1,625,000		1,550,000
Debt discount and issuance costs, net of accumulated amortization of $6,609 and $11,709, respectively	(10,693)		(10,547)
Total Unsecured Notes Payable	$	1,614,307	$	1,539,453

Senior Unsecured Notes

On January 26, 2021, the Operating Partnership issued $500 million of senior unsecured notes (the "3.375% Senior Notes") that mature February 1, 2031 and bear interest at 3.375% per annum. The 3.375% Senior Notes were priced at 98.935% of the principal amount with a yield to maturity of 3.502%. The net proceeds of the 3.375% Senior Notes, after the issuance discount, underwriting fees, and other costs were approximately $489.7 million, which were primarily used to (i) prepay our $150 million Senior Guaranteed Notes, Series A, with a make-whole payment (as defined in the Note Purchase Agreement for the Series A Notes) thereon of approximately $3.9 million, on January 26, 2021, (ii) repay our $100 million then outstanding balance under our Revolver Loan on January 26, 2021, (iii) fund the development of the La Jolla Commons III office building and (iv) for general corporate purposes.

Certain unsecured loans and notes require the Operating Partnership to comply with various financial covenants. As of September 30, 2023, the Operating Partnership was in compliance with these financial covenants.

Amended Term Loan Agreement

On January 9, 2018, we entered into the Third Amendment to the Term Loan Agreement (as so amended, the "Term Loan Agreement"), which maintains the seven years $150 million unsecured term loan (referred to herein as Term Loan B and Term Loan C) to the Operating Partnership that matures on March 1, 2023 (the “$150mm Term Loan”). Effective as of March 1, 2018, borrowings under the Term Loan Agreement with respect to the $150mm Term Loan bear interest at floating rates equal to, at the Operating Partnership’s option, either (1) LIBOR, plus a spread which ranges from 1.20% to 1.70% based on the Operating Partnership’s consolidated leverage ratio, or (2) a base rate equal to the highest of (a) 0%, (b) the prime rate, (c) the federal funds rate plus 50 bps or (d) the Eurodollar rate plus 100 bps, in each case plus a spread which ranges from 0.70% to 1.35% based on the Operating Partnership’s consolidated leverage ratio. Additionally, the Operating Partnership may elect for borrowings to bear interest based on a ratings-based pricing grid as per the Operating Partnership’s then-applicable investment grade debt ratings under the terms set forth in the Term Loan Agreement.

On January 5, 2023, we entered into the Amended and Restated Term Loan Agreement, which increased the aggregate unsecured borrowings from $150 million to $225 million and extended the maturity date of Term Loan B and Term Loan C from March 1, 2023 to January 5, 2025, with one, twelve-month extension option, subject to certain conditions. Borrowings under the Amended and Restated Term Loan Agreement bear interest at floating rates equal to, at the Operating Partnership’s option, either (1) the applicable SOFR, plus a SOFR adjustment and a spread (based on the Operating Partnership’s consolidated leverage ratio and applicable year of Term Loan B and Term Loan C) ranging from 1.20% to 1.90%, or (2) a base rate equal to the highest of (a) 0%, (b) the prime rate, (c) the federal funds rate plus 50 bps and (d) the one-month SOFR, plus a SOFR adjustment and 100 bps, plus, in each case, a spread (based on the Operating Partnership’s consolidated leverage ratio and applicable year of the Term Loan B and Term Loan C) ranging from 0.20% to 0.90%. Additionally, the Operating Partnership may elect for borrowings to bear interest based on a ratings-based pricing grid based on the Operating Partnership’s then-applicable investment grade debt ratings under the terms set forth in the Amended and Restated Term Loan Agreement.

Prior to entering into the Amended and Restated Term Loan Agreement, the Operating Partnership entered into interest rate swap agreements that are intended to fix the interest rate associated with Term Loan B and Term Loan C at approximately (1) 5.47% for the first year of Term Loan B and Term Loan C and (2) 5.57% for the second year of Term Loan B and Term Loan C, subject to adjustments based on the company’s consolidated leverage ratio.

Third Amended and Restated Credit Facility

On January 9, 2018, we entered into a second amended and restated credit agreement (the "Second Amended and Restated Credit Facility"). The Second Amended and Restated Credit Facility provides for aggregate, unsecured borrowing of $450 million, consisting of a revolving line of credit of $350 million (the "Revolver Loan") and a term loan of $100 million (the "Term Loan A"). The Second Amended and Restated Credit Facility had an accordion feature that allowed us to increase the availability thereunder up to an additional $250 million, subject to meeting specified requirements and obtaining additional commitments from lenders.

Borrowings under the Second Amended and Restated Credit Agreement initially bore interest at floating rates equal to, at our option, either (1) LIBOR, plus a spread which ranges from (a) 1.05% to 1.50% (with respect to the Revolver Loan) and (b) 1.30% to 1.90% (with respect to Term Loan A), in each case based on our consolidated leverage ratio, or (2) a base rate equal to the highest of (a) the prime rate, (b) the federal funds rate plus 50 bps or (c) LIBOR plus 100 bps, plus a spread which ranges from (i) 0.10% to 0.50% (with respect to the Revolver Loan) and (ii) 0.30% to 0.90% (with respect to Term Loan A), in each case based on our consolidated leverage ratio.

On January 9, 2019, we entered into the first amendment (“First Amendment”) to the Second Amended and Restated Credit Facility, which extended the maturity date of Term Loan A to January 9, 2021, subject to three, one year extension options. In October 2020, we exercised an option to extend the maturity date of Term Loan A to January 9, 2022, subject to certain conditions. Additionally, in connection with the First Amendment, borrowings under the Second Amended and Restated Credit Facility with respect to Term Loan A bore interest at floating rates equal to, at our option, either (1) LIBOR, plus a spread which ranges from 1.20% to 1.70% based on our consolidated total leverage ratio, or (2) a base rate equal to the highest of (a) the prime rate, (b) the federal funds rate plus 50 bps or (c) the Eurodollar rate plus 100 bps, in each case plus a spread which ranges from 0.20% to 0.70% based on our consolidated total leverage ratio. The foregoing rates were intended to be more favorable than previously contained in the Second Amended and Restated Credit Facility (prior to entry into the First Amendment) with respect to Term Loan A.

On January 5, 2022, we entered into the Third Amended and Restated Credit Facility, which provides for aggregate, unsecured borrowings of up to $500 million, consisting of a revolving line of credit of $400 million (the “2022 Revolver Loan”) and a term loan of $100 million (the “2022 Term Loan A”). The Third Amended and Restated Credit Facility has an accordion feature that allowed us to increase the availability thereunder up to an additional $400 million, subject to meeting specified requirements and obtaining additional commitments from lenders. The 2022 Revolver Loan initially matures on January 5, 2026, subject to two, six-month extension options. The 2022 Term Loan A matures on January 5, 2027, with no further extension options. Borrowings under the Third Amended and Restated Credit Agreement bear interest at floating rates equal to, at the Operating Partnership’s option, either (1) the applicable SOFR, plus the applicable SOFR Adjustment, and a spread which ranges from (a) 1.05% to 1.50% (with respect to the 2022 Revolver Loans) and (b) 1.20% to 1.70% (with respect to the 2022 Term Loan A), in each case based on our consolidated leverage ratio, or (2) a base rate equal to the highest of (a) the prime rate, (b) the federal funds rate plus 50 bps, (c) the Term SOFR Screen Rate with a term of one month plus 100 bps and (d) 1.00%, plus a spread which ranges from (i) 0.10% to 0.50% (with respect to the 2022 Revolver Loan) and (ii) 0.20% to 0.70% (with respect to the 2022 Term Loan A), in each case based on our consolidated leverage ratio. On January 14, 2022, the Operating Partnership entered into two interest rate swap agreements that are intended to fix the interest rate associated with the 2022 Term Loan A at approximately 2.70% through January 5, 2027, subject to adjustments based on our consolidated leverage ratio. At September 30, 2023, there were no amounts outstanding under the 2022 Revolver Loan and we had incurred approximately $1.5 million of net debt issuance costs which are recorded in other assets, net on the consolidated balance sheet. For the nine months ended September 30, 2023, the weighted average interest rate on the 2022 Revolver Loan was 6.12%.

Additionally, the Third Amended and Restated Credit Facility includes a number of customary financial covenants, including:

•A maximum leverage ratio (defined as total indebtedness net of certain cash and cash equivalents to total asset value) of 60%;

•A maximum secured leverage ratio (defined as total secured debt to secured total asset value) of 40%;

•A minimum fixed charge coverage ratio (defined as consolidated earnings before interest, taxes, depreciation and amortization to consolidated fixed charges) of 1.50x;

•A minimum unsecured interest coverage ratio of 1.75x;

•A maximum unsecured leverage ratio of 60%; and

•Recourse indebtedness at any time cannot exceed 15% of total asset value.

The Third Amended and Restated Credit Facility provides that our annual distributions may not exceed the greater of (1) 95% of our funds from operation ("FFO") or (2) the amount required for us to (a) qualify and maintain our REIT status and (b) avoid the payment of federal or state income or excise tax. If certain events of default exist or would result from a distribution, we may be precluded from making distributions other than those necessary to qualify and maintain our status as a REIT.

As of September 30, 2023, the Operating Partnership was in compliance with the financial covenants in the Third Amended and Restated Credit Facility.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(c))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 470
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//470/tableOfContent

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1C
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Section 50
-Paragraph 1C
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1C
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1E
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Section 50
-Paragraph 1I
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1I
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1I
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

+ Details

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Sep. 30, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

DEBT - Narrative (Details)						9 Months Ended
DEBT - Narrative (Details)	Jan. 05, 2023 USD ($) extension	Jan. 05, 2022 USD ($) extension	Jan. 26, 2021 USD ($)	Jan. 09, 2019 extension	Jan. 09, 2018 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Jan. 04, 2023 USD ($)	Jan. 14, 2022 interest_rate_swap_agreement
Debt Instrument [Line Items]
Repayment of unsecured term loan						$ 150,000,000	$ 0
Repayments of line of credit						36,000,000	0
Unsecured line of credit, net
Debt Instrument [Line Items]
Maximum leverage ratio of revolving credit facility		60.00%
Maximum secured leverage ratio on revolving credit facility		40.00%
Minimum fixed charge coverage ratio covenant threshold		1.50
Minimum unsecured leverage ratio		175.00%
Maximum unsecured leverage ratio		60.00%
Maximum recourse indebtedness of total asset value		15.00%
Third Amended and Restated Credit Facility \| Unsecured line of credit, net
Debt Instrument [Line Items]
Percentage annual distributions cannot exceed funds from operations		95.00%
American Assets Trust, L.P.
Debt Instrument [Line Items]
Repayment of unsecured term loan						150,000,000	0
Repayments of line of credit						$ 36,000,000	$ 0
American Assets Trust, L.P. \| Unsecured term loans, net \| Base Rate
Debt Instrument [Line Items]
Minimum base rate	0.00%
American Assets Trust, L.P. \| Unsecured term loans, net \| Federal Funds Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
American Assets Trust, L.P. \| Unsecured term loans, net \| Secured Overnight Financing Rate
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
American Assets Trust, L.P. \| Unsecured term loans, net \| Minimum \| Secured Overnight Financing Rate
Debt Instrument [Line Items]
Basis spread on variable rate	1.20%
American Assets Trust, L.P. \| Unsecured term loans, net \| Maximum \| Secured Overnight Financing Rate
Debt Instrument [Line Items]
Basis spread on variable rate	1.90%
American Assets Trust, L.P. \| Unsecured line of credit, net \| Minimum \| Secured Overnight Financing Rate \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		1.05%
American Assets Trust, L.P. \| Unsecured line of credit, net \| Maximum \| Secured Overnight Financing Rate \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		1.50%
American Assets Trust, L.P. \| 3.375% Senior Unsecured Notes
Debt Instrument [Line Items]
Stated Interest Rate			3.375%
Note offering percent			0.98935
Weighted average yield of investment			3.502%
Proceeds from debt, net of issuance costs			$ 489,700,000
American Assets Trust, L.P. \| 3.375% Senior Unsecured Notes \| Unsecured term loans, net
Debt Instrument [Line Items]
Face amount of debt			500,000,000
Stated Interest Rate						3.375%
American Assets Trust, L.P. \| Senior Guaranteed Notes, Series A \| Unsecured term loans, net
Debt Instrument [Line Items]
Repayment of unsecured term loan			150,000,000
Make whole payment			3,900,000
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility
Debt Instrument [Line Items]
Revolving credit facility borrowing limit, maximum borrowing capacity					$ 450,000,000
Additional borrowing capacity					250,000,000
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured term loans, net
Debt Instrument [Line Items]
Revolving credit facility borrowing limit, maximum borrowing capacity					$ 100,000,000
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured term loans, net \| London Interbank Offered Rate
Debt Instrument [Line Items]
Basis spread on variable rate					1.00%
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured term loans, net \| Federal Funds Rate
Debt Instrument [Line Items]
Basis spread on variable rate		0.50%			0.50%
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured term loans, net \| Secured Overnight Financing Rate
Debt Instrument [Line Items]
Basis spread on variable rate		1.00%
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured term loans, net \| Minimum \| London Interbank Offered Rate
Debt Instrument [Line Items]
Basis spread on variable rate					1.30%
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured term loans, net \| Minimum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate					0.30%
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured term loans, net \| Maximum \| London Interbank Offered Rate
Debt Instrument [Line Items]
Basis spread on variable rate					1.90%
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured term loans, net \| Maximum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate					0.90%
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured line of credit, net
Debt Instrument [Line Items]
Repayments of line of credit			$ 100,000,000
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured line of credit, net \| Revolving Credit Facility
Debt Instrument [Line Items]
Revolving credit facility borrowing limit, maximum borrowing capacity					$ 350,000,000
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured line of credit, net \| Minimum \| London Interbank Offered Rate \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate					1.05%
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured line of credit, net \| Minimum \| Base Rate \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate					0.10%
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured line of credit, net \| Maximum \| London Interbank Offered Rate \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate					1.50%
American Assets Trust, L.P. \| Second Amended and Restated Credit Facility \| Unsecured line of credit, net \| Maximum \| Base Rate \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate					0.50%
American Assets Trust, L.P. \| Term Loan B
Debt Instrument [Line Items]
Term of debt instrument					7 years
American Assets Trust, L.P. \| Term Loan B \| Minimum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate					0.70%
American Assets Trust, L.P. \| Term Loan B \| Maximum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate					1.35%
American Assets Trust, L.P. \| Term Loan B \| Unsecured term loans, net \| First Year
Debt Instrument [Line Items]
Derivative fixed interest rate	5.47%
American Assets Trust, L.P. \| Term Loan B \| Unsecured term loans, net \| Second Year
Debt Instrument [Line Items]
Derivative fixed interest rate	5.57%
American Assets Trust, L.P. \| Term Loan B \| Unsecured term loans, net \| Base Rate
Debt Instrument [Line Items]
Minimum base rate					0.00%
American Assets Trust, L.P. \| Term Loan B \| Unsecured term loans, net \| Federal Funds Rate
Debt Instrument [Line Items]
Basis spread on variable rate					0.50%
American Assets Trust, L.P. \| Term Loan B \| Unsecured term loans, net \| Eurodollar
Debt Instrument [Line Items]
Basis spread on variable rate					1.00%
American Assets Trust, L.P. \| Term Loan B \| Unsecured term loans, net \| Minimum \| London Interbank Offered Rate
Debt Instrument [Line Items]
Basis spread on variable rate					1.20%
American Assets Trust, L.P. \| Term Loan B \| Unsecured term loans, net \| Maximum \| London Interbank Offered Rate
Debt Instrument [Line Items]
Basis spread on variable rate					1.70%
American Assets Trust, L.P. \| Term Loan B & Term Loan C
Debt Instrument [Line Items]
Debt extension options \| extension	1
Extension term	12 months
American Assets Trust, L.P. \| Term Loan B & Term Loan C \| Unsecured term loans, net
Debt Instrument [Line Items]
Face amount of debt	$ 225,000,000				$ 150,000,000			$ 150,000,000
Debt extension options \| extension	1
Extension term	12 months
American Assets Trust, L.P. \| Term Loan B & Term Loan C \| Unsecured term loans, net \| Minimum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.20%
American Assets Trust, L.P. \| Term Loan B & Term Loan C \| Unsecured term loans, net \| Maximum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.90%
American Assets Trust, L.P. \| First Amendment To Second Amended And Restated Credit Facility \| Minimum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate				0.20%
American Assets Trust, L.P. \| First Amendment To Second Amended And Restated Credit Facility \| Maximum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate				0.70%
American Assets Trust, L.P. \| First Amendment To Second Amended And Restated Credit Facility \| Unsecured term loans, net
Debt Instrument [Line Items]
Debt extension options \| extension				3
Extension term				1 year
American Assets Trust, L.P. \| First Amendment To Second Amended And Restated Credit Facility \| Unsecured term loans, net \| Federal Funds Rate
Debt Instrument [Line Items]
Basis spread on variable rate				0.50%
American Assets Trust, L.P. \| First Amendment To Second Amended And Restated Credit Facility \| Unsecured term loans, net \| Eurodollar
Debt Instrument [Line Items]
Basis spread on variable rate				1.00%
American Assets Trust, L.P. \| First Amendment To Second Amended And Restated Credit Facility \| Unsecured term loans, net \| Minimum \| London Interbank Offered Rate
Debt Instrument [Line Items]
Basis spread on variable rate				1.20%
American Assets Trust, L.P. \| First Amendment To Second Amended And Restated Credit Facility \| Unsecured term loans, net \| Maximum \| London Interbank Offered Rate
Debt Instrument [Line Items]
Basis spread on variable rate				1.70%
American Assets Trust, L.P. \| Third Amended and Restated Credit Facility
Debt Instrument [Line Items]
Revolving credit facility borrowing limit, maximum borrowing capacity		$ 500,000,000
Additional borrowing capacity		$ 400,000,000
American Assets Trust, L.P. \| Third Amended and Restated Credit Facility \| Interest Rate Swap
Debt Instrument [Line Items]
Derivative fixed interest rate									2.70%
Number of interest rate swap agreements \| interest_rate_swap_agreement									2
American Assets Trust, L.P. \| Third Amended and Restated Credit Facility \| Unsecured term loans, net
Debt Instrument [Line Items]
Debt extension options \| extension		2
Extension term		6 months
Revolving credit facility borrowing limit, maximum borrowing capacity		$ 100,000,000
American Assets Trust, L.P. \| Third Amended and Restated Credit Facility \| Unsecured term loans, net \| Base Rate
Debt Instrument [Line Items]
Minimum base rate		1.00%
American Assets Trust, L.P. \| Third Amended and Restated Credit Facility \| Unsecured term loans, net \| Minimum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate		0.20%
American Assets Trust, L.P. \| Third Amended and Restated Credit Facility \| Unsecured term loans, net \| Minimum \| Secured Overnight Financing Rate
Debt Instrument [Line Items]
Basis spread on variable rate		1.20%
American Assets Trust, L.P. \| Third Amended and Restated Credit Facility \| Unsecured term loans, net \| Maximum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate		0.70%
American Assets Trust, L.P. \| Third Amended and Restated Credit Facility \| Unsecured term loans, net \| Maximum \| Secured Overnight Financing Rate
Debt Instrument [Line Items]
Basis spread on variable rate		1.70%
American Assets Trust, L.P. \| Third Amended and Restated Credit Facility \| Unsecured line of credit, net
Debt Instrument [Line Items]
Debt issuance costs, net, revolving credit facility						$ 1,500,000
Weighted average interest rate, revolving credit facility						6.12%
American Assets Trust, L.P. \| Third Amended and Restated Credit Facility \| Unsecured line of credit, net \| Revolving Credit Facility
Debt Instrument [Line Items]
Revolving credit facility borrowing limit, maximum borrowing capacity		$ 400,000,000
American Assets Trust, L.P. \| Third Amended and Restated Credit Facility \| Unsecured line of credit, net \| Minimum \| Base Rate \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		0.10%
American Assets Trust, L.P. \| Third Amended and Restated Credit Facility \| Unsecured line of credit, net \| Maximum \| Base Rate \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		0.50%

ACQUIRED IN-PLACE LEASES AND ABOVE/BELOW MARKET LEASES

9 Months Ended

Sep. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

ACQUIRED IN-PLACE LEASES AND ABOVE/BELOW MARKET LEASES


	September 30, 2023		December 31, 2022
In-place leases	$	57,292	$	58,119
Accumulated amortization	(37,527)		(34,593)
Above market leases	1,885		1,885
Accumulated amortization	(1,809)		(1,778)
Acquired lease intangible assets, net	$	19,841	$	23,633
Below market leases	$	52,417	$	52,832
Accumulated accretion	(35,121)		(33,168)
Acquired lease intangible liabilities, net	$	17,296	$	19,664

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
ASSETS
Operating real estate	$ 3,494,369	$ 3,468,537
Construction in progress	233,720	202,385
Held for development	547	547
Total Real estate, at cost	3,728,636	3,671,469
Accumulated depreciation	(1,013,367)	(936,913)
Real estate, net	2,715,269	2,734,556
Cash and cash equivalents	89,968	49,571
Accounts receivable, net	7,875	7,848
Deferred rent receivables, net	89,023	87,192
Other assets, net	108,584	108,714
TOTAL ASSETS	3,010,719	2,987,881
LIABILITIES:
Secured notes payable, net	74,646	74,578
Unsecured notes payable, net	1,614,307	1,539,453
Unsecured line of credit, net	0	34,057
Accounts payable and accrued expenses	70,970	65,992
Security deposits payable	8,952	8,699
Other liabilities and deferred credits, net	73,194	79,577
Total liabilities	1,842,069	1,802,356
Commitments and contingencies (Note 11)
American Assets Trust, Inc. stockholders’ equity
Common stock, $0.01 par value, 490,000,000 shares authorized, 60,724,630 and 60,718,653 shares issued and outstanding at September 30, 2023 and December 31, 2022, respectively	607	607
Additional paid-in capital	1,467,455	1,461,201
Accumulated dividends in excess of net income	(270,817)	(251,167)
Accumulated other comprehensive income	12,051	10,624
Total American Assets Trust, Inc. stockholders’ equity	1,209,296	1,221,265
Noncontrolling interests	(40,646)	(35,740)
Total equity	1,168,650	1,185,525
TOTAL LIABILITIES AND EQUITY	$ 3,010,719	$ 2,987,881

LEASES

9 Months Ended

Sep. 30, 2023

Leases [Abstract]

LEASES

Lessor Operating Leases

We determine if an arrangement is a lease at inception. Our lease agreements are generally for real estate, and the determination of whether such agreements contain leases generally does not require significant estimates or judgments. We lease real estate under operating leases.

Our leases with office, retail, mixed-use and residential tenants are classified as operating leases. Leases at our office and retail properties and the retail portion of our mixed-use property generally range from three to ten years (certain leases with anchor tenants may be longer), and in addition to minimum rents, usually provide for cost recoveries for the tenant’s share of certain operating costs. Our leases may also include variable lease payments in the form of percentage rents based on the tenant’s level of sales achieved in excess of a breakpoint threshold. Leases on apartments generally range from 7 to 15 months, with a majority having 12-month lease terms. Rooms at the hotel portion of our mixed-use property are rented on a nightly basis.

Leases at our office and retail properties and the retail portion of our mixed-use property may contain lease extension options, at our lessee's discretion. The extension options are generally for 3 to 10 years and contain primarily rent at fixed rates or the prevailing market rent. The extension options are generally exercisable 6 to 12 months prior to the expiration of the lease and require the lessee to not be in default of the lease terms.

We attempt to maximize the amount we expect to derive from the underlying real estate property following the end of a lease, to the extent it is not extended. We maintain a proactive leasing and capital improvement program that, combined with the quality and locations of our properties, has made our properties attractive to tenants. However, the residual value of a real estate property is still subject to various market-specific, asset-specific, and tenant-specific risks and characteristics.


Year Ending December 31,
2023 (three months ending December 31, 2023)	$	59,230
2024	245,168
2025	230,418
2026	213,389
2027	187,633
Thereafter	367,831
Total	$	1,303,669

The above future minimum rentals exclude residential leases, which typically range from 7 to 15 months, and exclude the hotel, as rooms are rented on a nightly basis.

Lessee Operating Leases

At The Landmark at One Market, we lease, as lessee, a building adjacent to The Landmark at One Market under an operating lease effective through June 30, 2026, which we have the option to extend until 2031 (the "Annex Lease"). The lease payments under the extension option pursuant to the Annex Lease will be equal to the fair rental value at the time the extension option is exercised. The extension option is included in the calculation of the right-of-use asset and lease liability as we are reasonably certain of exercising the extension option.

Our lease agreements do not contain any residual value guarantees or material restrictive covenants. As our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement in determining the present value of lease payments.

Current annual payments under the operating leases are as follows, as of September 30, 2023 (in thousands):


Year Ending December 31,
2023 (three months ending December 31, 2023)	$	844
2024	3,428
2025	3,531
2026	3,584
2027	3,584
Thereafter	12,543
Total lease payments	27,514
Imputed interest	(3,634)
Present value of lease liability	$	23,880

Lease costs under the operating leases are as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023			2022
Operating lease cost	$	932	$	844	$	2,786		$	2,533

Sublease income	(978)		(968)		(2,648)			(2,675)
Total lease cost (income)	$	(46)	$	(124)	$	138		$	(142)

Weighted-average remaining lease term - operating leases (in years)					7.75
Weighted-average discount rate - operating leases					3.19		%

Supplemental cash flow information and non-cash activity related to our operating leases are as follow (in thousands):


	Nine Months Ended September 30,
	2023		2022
Operating cash flow information:
Cash paid for amounts included in the measurement of lease liabilities	$	2,484	$	2,412

Subleases

At The Landmark at One Market, we (as sublandlord) sublease the Annex Lease building under operating leases effective through December 31, 2029. The subleases contain extension options, subject to our ability to extend the Annex Lease, that can extend the subleases through December 31, 2039 at the fair rental value at the time the extension option is exercised.

LEASES

Lessor Operating Leases


Year Ending December 31,
2023 (three months ending December 31, 2023)	$	59,230
2024	245,168
2025	230,418
2026	213,389
2027	187,633
Thereafter	367,831
Total	$	1,303,669

The above future minimum rentals exclude residential leases, which typically range from 7 to 15 months, and exclude the hotel, as rooms are rented on a nightly basis.

Lessee Operating Leases

Current annual payments under the operating leases are as follows, as of September 30, 2023 (in thousands):


Year Ending December 31,
2023 (three months ending December 31, 2023)	$	844
2024	3,428
2025	3,531
2026	3,584
2027	3,584
Thereafter	12,543
Total lease payments	27,514
Imputed interest	(3,634)
Present value of lease liability	$	23,880

Lease costs under the operating leases are as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023			2022
Operating lease cost	$	932	$	844	$	2,786		$	2,533

Sublease income	(978)		(968)		(2,648)			(2,675)
Total lease cost (income)	$	(46)	$	(124)	$	138		$	(142)

Weighted-average remaining lease term - operating leases (in years)					7.75
Weighted-average discount rate - operating leases					3.19		%

Supplemental cash flow information and non-cash activity related to our operating leases are as follow (in thousands):


	Nine Months Ended September 30,
	2023		2022
Operating cash flow information:
Cash paid for amounts included in the measurement of lease liabilities	$	2,484	$	2,412

Subleases

OTHER LIABILITIES AND DEFERRED CREDITS (Tables)

9 Months Ended

Sep. 30, 2023

Other Liabilities Disclosure [Abstract]

Schedule of Other Liabilities and Deferred Credits

Other liabilities and deferred credits consist of the following (in thousands):


	September 30, 2023		December 31, 2022
Acquired below market leases, net	$	17,296	$	19,664
Prepaid rent and deferred revenue	17,778		17,971
Interest rate swap liability	—		196

Deferred compensation	2,501		2,411
Deferred tax liability	842		852
Straight-line rent liability	10,840		12,746
Lease liability	23,880		25,676
Other liabilities	57		61
Total other liabilities and deferred credits, net	$	73,194	$	79,577

EQUITY OF AMERICAN ASSETS TRUST, INC. (Tables)

9 Months Ended

Sep. 30, 2023

Equity [Abstract]

Schedule of Dividends Declared and Paid on Shares of Common Stock and Noncontrolling Common Units

The following table lists the dividends declared and paid on our shares of common stock and noncontrolling common units during the nine months ended September 30, 2023:

Period

Amount per
Share/Unit

Period Covered

Dividend Paid Date

First Quarter 2023

0.33

January 1, 2023 to March 31, 2023

March 23, 2023

Second Quarter 2023

0.33

April 1, 2023 to June 30, 2023

June 22, 2023

Third Quarter 2023

0.33

July 1, 2023 to September 30, 2023

September 21, 2023

Schedule of Activity of Restricted Stock Awards

The following table summarizes the activity of restricted stock awards during the nine months ended September 30, 2023:


	Units	Weighted Average Grant Date Fair Value
Nonvested at January 1, 2023	574,044	$	20.98
Granted	10,348	19.33
Vested	(6,072)	32.94
Forfeited	(4,371)	20.92
Nonvested at September 30, 2023	573,949	$	20.87

Schedule of Computation of Basic and Diluted EPS

The computation of basic and diluted EPS is presented below (dollars in thousands, except share and per share amounts):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
NUMERATOR
Net income	$	15,135	$	16,369	$	51,198	$	43,471
Less: Net income attributable to restricted shares	(189)		(155)		(568)		(464)
Less: Income from operations attributable to unitholders in the Operating Partnership	(3,168)		(3,442)		(10,733)		(9,130)

Net income attributable to common stockholders—basic	$	11,778	$	12,772	$	39,897	$	33,877
Income from operations attributable to American Assets Trust, Inc. common stockholders—basic	$	11,778	$	12,772	$	39,897	$	33,877
Plus: Income from operations attributable to unitholders in the Operating Partnership	3,168		3,442		10,733		9,130

Net income attributable to common stockholders—diluted	$	14,946	$	16,214	$	50,630	$	43,007
DENOMINATOR
Weighted average common shares outstanding—basic	60,150,681		60,044,117		60,147,189		60,041,034
Effect of dilutive securities—conversion of Operating Partnership units	16,181,537		16,181,537		16,181,537		16,181,537
Weighted average common shares outstanding—diluted	76,332,218		76,225,654		76,328,726		76,222,571

Earnings per common share, basic	$	0.20	$	0.21	$	0.66	$	0.56
Earnings per common share, diluted	$	0.20	$	0.21	$	0.66	$	0.56

SEGMENT REPORTING (Tables)

9 Months Ended

Sep. 30, 2023

Segment Reporting [Abstract]

Schedule of Segments Operating Activity

The following table represents operating activity within our reportable segments (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Total Office
Property revenue	$	51,948	$	53,250	$	155,137	$	153,412
Property expense	(15,361)		(14,551)		(45,075)		(41,944)
Segment profit	36,587		38,699		110,062		111,468
Total Retail
Property revenue	26,143		25,694		77,671		74,873
Property expense	(7,504)		(7,807)		(22,763)		(22,965)
Segment profit	18,639		17,887		54,908		51,908
Total Multifamily
Property revenue	15,152		14,748		45,908		42,851
Property expense	(7,262)		(6,871)		(20,579)		(19,171)
Segment profit	7,890		7,877		25,329		23,680
Total Mixed-Use
Property revenue	17,955		17,331		49,957		45,512
Property expense	(11,184)		(10,686)		(31,828)		(28,549)
Segment profit	6,771		6,645		18,129		16,963
Total segments’ profit	$	69,887	$	71,108	$	208,428	$	204,019

Schedule of Reconciliation of Segment Profit to Net Income Attributable to Stockholders

The following table is a reconciliation of segment profit to net income attributable to stockholders (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Total segments’ profit	$	69,887	$	71,108	$	208,428	$	204,019
General and administrative	(8,880)		(8,376)		(26,488)		(23,130)
Depreciation and amortization	(29,868)		(31,729)		(89,592)		(93,228)
Interest expense, net	(16,325)		(14,454)		(48,422)		(43,667)


Other income (expense), net	321		(180)		7,272		(523)





Net income	15,135		16,369		51,198		43,471
Net income attributable to restricted shares	(189)		(155)		(568)		(464)
Net income attributable to unitholders in the Operating Partnership	(3,168)		(3,442)		(10,733)		(9,130)
Net income attributable to American Assets Trust, Inc. stockholders	$	11,778	$	12,772	$	39,897	$	33,877

Schedule of Net Real Estate and Secured Note Payable Balances by Segments

The following table shows net real estate and secured note payable balances for each of the segments (in thousands):


	September 30, 2023		December 31, 2022
Net Real Estate
Office	$	1,616,638	$	1,615,479
Retail	567,354		579,219
Multifamily	363,750		370,993
Mixed-Use	167,527		168,865
	$	2,715,269	$	2,734,556
Secured Notes Payable (1)
Office	$	75,000	$	75,000



	$	75,000	$	75,000

(1)Excludes debt issuance costs of $0.4 million and $0.4 million for each of the periods ended September 30, 2023 and December 31, 2022, respectively.

Schedule of Capital Expenditures for Each Segment

Capital expenditures for each segment for the three and nine months ended September 30, 2023 and 2022 were as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Capital Expenditures (1)
Office	$	16,105	$	24,107	$	56,642	$	80,824
Retail	1,628		2,165		5,798		9,422
Multifamily	1,977		686		4,506		3,572
Mixed-Use	1,432		197		3,282		649
	$	21,142	$	27,155	$	70,228	$	94,467

(1)Capital expenditures represent cash paid for capital expenditures during the period and include leasing commissions paid.

Consolidated Statement of Partners' Capital (Unaudited) - LP - USD ($)
$ in Thousands

Total

American Assets Trust, L.P.

Accumulated Other Comprehensive Income (Loss)

American Assets Trust, L.P.

Limited Partners' Capital

^[1]

American Assets Trust, L.P.

General Partner's Capital

Beginning partners' capital account (in shares) at Dec. 31, 2021

16,181,537

60,525,580

^[2]

Beginning partners' capital account at Dec. 31, 2021

$ 1,210,123

$ 4,169

$ (30,138)

$ 1,236,092

^[2]

Increase (Decrease) in Partners' Capital [Roll Forward]

Net income

$ 13,514

13,514

2,836

$ 10,678

^[2]

Forfeiture of restricted units (in shares)

^[2]

(3,121)

Distributions

(24,545)

$ (5,178)

$ (19,367)

^[2]

Stock-based compensation

1,489

$ 1,489

^[2]

Units withheld for employee taxes (in shares)

^[2]

(416)

Units withheld for employee taxes

(15)

$ (15)

^[2]

Other comprehensive income - change in value of interest rate swaps

5,596

Reclassification of amortization of forward-starting swap included in interest expense

(275)

Ending partners' capital account (in shares) at Mar. 31, 2022

16,181,537

60,522,043

^[2]

Ending partners' capital account at Mar. 31, 2022

1,205,887

9,490

$ (32,480)

$ 1,228,877

^[2]

Beginning partners' capital account (in shares) at Dec. 31, 2021

16,181,537

60,525,580

^[2]

Beginning partners' capital account at Dec. 31, 2021

1,210,123

4,169

$ (30,138)

$ 1,236,092

^[2]

Increase (Decrease) in Partners' Capital [Roll Forward]

Net income

43,471

Other comprehensive income - change in value of interest rate swaps

13,117

Ending partners' capital account (in shares) at Sep. 30, 2022

16,181,537

60,528,115

^[2]

Ending partners' capital account at Sep. 30, 2022

1,197,723

16,461

$ (36,542)

$ 1,217,804

^[2]

Beginning partners' capital account (in shares) at Mar. 31, 2022

16,181,537

60,522,043

^[2]

Beginning partners' capital account at Mar. 31, 2022

1,205,887

9,490

$ (32,480)

$ 1,228,877

^[2]

Increase (Decrease) in Partners' Capital [Roll Forward]

Net income

13,588

2,852

$ 10,736

^[2]

Issuance of restricted units (in shares)

^[2]

6,072

Distributions

(24,547)

$ (5,178)

$ (19,369)

^[2]

Stock-based compensation

2,001

$ 2,001

^[2]

Other comprehensive income - change in value of interest rate swaps

3,314

Reclassification of amortization of forward-starting swap included in interest expense

(275)

Ending partners' capital account (in shares) at Jun. 30, 2022

16,181,537

60,528,115

^[2]

Ending partners' capital account at Jun. 30, 2022

1,199,968

12,529

$ (34,806)

$ 1,222,245

^[2]

Increase (Decrease) in Partners' Capital [Roll Forward]

Net income

16,369

3,442

12,927

^[2]

Distributions

(24,547)

$ (5,178)

(19,369)

^[2]

Stock-based compensation

2,001

$ 2,001

^[2]

Other comprehensive income - change in value of interest rate swaps

4,207

Reclassification of amortization of forward-starting swap included in interest expense

(275)

Ending partners' capital account (in shares) at Sep. 30, 2022

16,181,537

60,528,115

^[2]

Ending partners' capital account at Sep. 30, 2022

1,197,723

16,461

$ (36,542)

$ 1,217,804

^[2]

Beginning partners' capital account (in shares) at Dec. 31, 2022

16,181,537

60,718,653

^[2]

Beginning partners' capital account at Dec. 31, 2022

1,185,525

14,011

$ (39,127)

$ 1,210,641

^[2]

Increase (Decrease) in Partners' Capital [Roll Forward]

Net income

20,666

4,341

$ 16,325

^[2]

Forfeiture of restricted units (in shares)

^[2]

(818)

Distributions

(25,377)

$ (5,340)

$ (20,037)

^[2]

Stock-based compensation

2,035

$ 2,035

^[2]

Other comprehensive income - change in value of interest rate swaps

(2,269)

Reclassification of amortization of forward-starting swap included in interest expense

(854)

Ending partners' capital account (in shares) at Mar. 31, 2023

16,181,537

60,717,835

^[2]

Ending partners' capital account at Mar. 31, 2023

1,179,726

10,888

$ (40,126)

$ 1,208,964

^[2]

Beginning partners' capital account (in shares) at Dec. 31, 2022

16,181,537

60,718,653

^[2]

Beginning partners' capital account at Dec. 31, 2022

1,185,525

14,011

$ (39,127)

$ 1,210,641

^[2]

Increase (Decrease) in Partners' Capital [Roll Forward]

Net income

51,198

Other comprehensive income - change in value of interest rate swaps

2,859

Ending partners' capital account (in shares) at Sep. 30, 2023

16,181,537

60,724,630

^[2]

Ending partners' capital account at Sep. 30, 2023

1,168,650

15,819

$ (44,414)

$ 1,197,245

^[2]

Beginning partners' capital account (in shares) at Mar. 31, 2023

16,181,537

60,717,835

^[2]

Beginning partners' capital account at Mar. 31, 2023

1,179,726

10,888

$ (40,126)

$ 1,208,964

^[2]

Increase (Decrease) in Partners' Capital [Roll Forward]

Net income

15,397

3,224

$ 12,173

^[2]

Issuance of restricted units (in shares)

^[2]

10,348

Forfeiture of restricted units (in shares)

^[2]

(3,553)

Distributions

(25,379)

$ (5,340)

$ (20,039)

^[2]

Stock-based compensation

2,110

$ 2,110

^[2]

Other comprehensive income - change in value of interest rate swaps

4,360

Reclassification of amortization of forward-starting swap included in interest expense

(98)

Ending partners' capital account (in shares) at Jun. 30, 2023

16,181,537

60,724,630

^[2]

Ending partners' capital account at Jun. 30, 2023

1,176,116

15,150

$ (42,242)

$ 1,203,208

^[2]

Increase (Decrease) in Partners' Capital [Roll Forward]

Net income

15,135

3,168

11,967

^[2]

Distributions

(25,379)

$ (5,340)

(20,039)

^[2]

Stock-based compensation

2,109

$ 2,109

^[2]

Other comprehensive income - change in value of interest rate swaps

768

Reclassification of amortization of forward-starting swap included in interest expense

$ (99)

(99)

Ending partners' capital account (in shares) at Sep. 30, 2023

16,181,537

60,724,630

^[2]

Ending partners' capital account at Sep. 30, 2023

$ 1,168,650

$ 15,819

$ (44,414)

$ 1,197,245

^[2]

[1]	Consists of limited partnership interests held by third parties.
[2]	Consists of general partnership interests held by American Assets Trust, Inc.

FAIR VALUE OF FINANCIAL INSTRUMENTS

9 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

FAIR VALUE OF FINANCIAL INSTRUMENTS

A fair value measurement is based on the assumptions that market participants would use in pricing an asset or liability. The hierarchy for inputs used in measuring fair value is as follows:

1.Level 1 Inputs—quoted prices in active markets for identical assets or liabilities

2.Level 2 Inputs—observable inputs other than quoted prices in active markets for identical assets and liabilities

3.Level 3 Inputs—unobservable inputs

The carrying values of cash and cash equivalents, restricted cash, accounts receivable, accounts payable and accrued liabilities are reasonable estimates of fair value, using Level 1 inputs, because of the short-term nature of these instruments. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement.

We measure the fair value of our deferred compensation liability, which is included in other liabilities and deferred credits on the consolidated balance sheet, on a recurring basis using Level 2 inputs. We measure the fair value of this liability based on prices provided by independent market participants that are based on observable inputs using market-based valuation techniques.

The fair value of the interest rate swap agreements are based on the estimated amounts we would receive or pay to terminate the contract at the reporting date and are determined using interest rate pricing models and interest rate related observable inputs. The changes in the fair value of the derivatives that are designated as cash flow hedges are being recorded in accumulated other comprehensive income (loss) and will be subsequently reclassified into earnings during the period in which the hedged forecasted transaction affects earnings.

We incorporate credit valuation adjustments to appropriately reflect both our own non-performance risk and the respective counterparty’s non-performance risk in the fair value measurements. In adjusting the fair value of our derivative contracts for the effect of non-performance risk, we considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts, and guarantees.

Although we have determined that the majority of the inputs used to value our derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with our derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. However, as of September 30, 2023 we have assessed the significance of the impact of the credit valuation adjustments on the overall valuation of our derivative position and have determined that the credit valuation adjustments are not significant to the overall valuation of our derivative. As a result, we have determined that our derivative valuation in its entirety is classified in Level 2 of the fair value hierarchy.

A summary of our financial liabilities that are measured at fair value on a recurring basis, by level within the fair value hierarchy is as follows (in thousands):


	September 30, 2023								December 31, 2022
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Deferred compensation liability	$	—	$	2,501	$	—	$	2,501	$	—	$	2,411	$	—	$	2,411
Interest rate swap asset	$	—	$	12,648	$	—	$	12,648	$	—	$	9,986	$	—	$	9,986
Interest rate swap liability	$	—	$	—	$	—	$	—	$	—	$	196	$	—	$	196

The fair value of our secured notes payable and unsecured senior guaranteed notes are sensitive to fluctuations in interest rates. Discounted cash flow analysis using observable market interest rates (Level 2) is generally used to estimate the fair value of our secured notes payable, using rates ranging from 6.0% to 7.0%.

Considerable judgment is necessary to estimate the fair value of financial instruments. The estimates of fair value presented herein are not necessarily indicative of the amounts that could be realized upon disposition of the financial instruments. The carrying values of our term loans set forth below are deemed to be at fair value since the outstanding debt is directly tied to monthly Secured Overnight Financing Rate (“SOFR”) contracts. A summary of the carrying amount and fair value of our secured financial instruments, all of which are based on Level 2 inputs, is as follows (in thousands):


	September 30, 2023				December 31, 2022
	Carrying Value		Fair Value		Carrying Value		Fair Value
Secured notes payable, net	$	74,646	$	72,976	$	74,578	$	75,129
Unsecured term loans, net	$	323,201	$	325,000	$	249,428	$	250,000
Unsecured senior guaranteed notes, net	$	798,670	$	751,414	$	798,362	$	761,470
Senior unsecured notes, net	$	492,436	$	373,445	$	491,663	$	403,500
Unsecured line of credit, net	$	—	$	—	$	34,057	$	36,000

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

OTHER ASSETS (Tables)

9 Months Ended

Sep. 30, 2023

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Components of Other Assets

Other assets consist of the following (in thousands):


	September 30, 2023		December 31, 2022
Leasing commissions, net of accumulated amortization of $48,181 and $43,078, respectively	$	38,168	$	38,436
Interest rate swap asset	12,648		9,986
Acquired above market leases, net	76		107
Acquired in-place leases, net	19,765		23,526
Lease incentives, net of accumulated amortization of $1,177 and $1,012, respectively	1,430		1,296
Other intangible assets, net of accumulated amortization of $1,803 and $1,549, respectively	1,896		2,165
Debt issuance costs, net of accumulated amortization of $1,134 and $0, respectively	1,457		—

Right-of-use lease asset, net	22,116		23,921
Prepaid expenses and other	11,028		9,277
Total other assets	$	108,584	$	108,714

EQUITY OF AMERICAN ASSETS TRUST, INC. - Computation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
NUMERATOR
Net income	$ 15,135	$ 16,369	$ 51,198	$ 43,471
Less: Net income attributable to restricted shares	(189)	(155)	(568)	(464)
Less: Income from operations attributable to unitholders in the Operating Partnership	(3,168)	(3,442)	(10,733)	(9,130)
NET INCOME ATTRIBUTABLE TO AMERICAN ASSETS TRUST	11,778	12,772	39,897	33,877
Income from operations attributable to American Assets Trust, Inc. common stockholders—basic	11,778	12,772	39,897	33,877
Plus: Income from operations attributable to unitholders in the Operating Partnership	3,168	3,442	10,733	9,130
Net income attributable to common stockholders—diluted	$ 14,946	$ 16,214	$ 50,630	$ 43,007
DENOMINATOR
Weighted average common shares outstanding—basic (in shares)	60,150,681	60,044,117	60,147,189	60,041,034
Effect of dilutive securities-conversion of Operating Partnership units (in shares)	16,181,537	16,181,537	16,181,537	16,181,537
Weighted average common shares outstanding - diluted (in shares)	76,332,218	76,225,654	76,328,726	76,222,571
Earnings per common share, basic (in USD per share)	$ 0.20	$ 0.21	$ 0.66	$ 0.56
Earnings per common share, diluted (in USD per share)	$ 0.20	$ 0.21	$ 0.66	$ 0.56

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	Sep. 30, 2023
Accounting Policies [Abstract]
Consolidation	Our consolidated financial statements include the accounts of the company, our Operating Partnership and our subsidiaries. The equity interests of other investors in our Operating Partnership are reflected as noncontrolling interests. The company follows the Financial Accounting Standards Board (the "FASB") guidance for determining whether an entity is a variable interest entity (“VIE”) and requires the performance of a qualitative rather than a quantitative analysis to determine the primary beneficiary of a VIE. Under this guidance, an entity would be required to consolidate a VIE if it has (i) the power to direct the activities that most significantly impact the entity’s economic performance and (ii) the obligation to absorb losses of the VIE or the right to receive benefits from the VIE that could be significant to the VIE. American Assets Trust, Inc. has concluded that the Operating Partnership is a VIE, and because American Assets Trust, Inc. has both the power and the rights to control the Operating Partnership, American Assets Trust, Inc. is the primary beneficiary and is required to continue to consolidate the Operating Partnership. Substantially all of the assets and liabilities of the company are related to the operating partnership VIE. All intercompany transactions and balances are eliminated in consolidation.
Basis of Accounting	The accompanying consolidated financial statements of the company and the Operating Partnership have been prepared in accordance with the rules applicable to Form 10-Q and include all information and footnotes required for interim financial statement presentation, but do not include all disclosures required under accounting principles generally accepted in the United States (“GAAP”) for annual financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments, except as otherwise noted) considered necessary for a fair presentation have been included. These financial statements should be read in conjunction with the audited consolidated financial statements and notes therein included in the company's and Operating Partnership's annual report on Form 10-K for the year ended December 31, 2022.
Use of Estimates	The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that in certain circumstances affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities, and revenues and expenses. These estimates are prepared using our best judgment, after considering past, current and expected events and economic conditions. Actual results could differ from these estimates.
Segment Information	Segment InformationSegment information is prepared on the same basis that our chief operating decision maker reviews information for operational decision-making purposes. We operate in four business segments: the acquisition, redevelopment, ownership and management of office real estate, retail real estate, multifamily real estate and mixed-use real estate. The products for our office segment primarily include rental of office space and other tenant services, including tenant reimbursements, parking and storage space rental. The products for our retail segment primarily include rental of retail space and other tenant services, including tenant reimbursements, parking and storage space rental. The products for our multifamily segment include rental of apartments and other tenant services. The products of our mixed-use segment include rental of retail space and other tenant services, including tenant reimbursements, parking and storage space rental and operation of a 369-room all-suite hotel.
Revenue Recognition and Accounts Receivable and Rent Concessions – COVID-19	Revenue Recognition and Accounts Receivable Our leases with tenants are classified as operating leases. Substantially all such leases contain fixed rent escalations which occur at specified times during the term of the lease. Base rents are recognized on a straight-line basis from when the tenant controls the space through the term of the related lease, net of valuation adjustments, based on management's assessment of credit, collection and other business risks. We make estimates of the collectability of our current accounts receivable and straight-line rents receivable which require significant judgment by management. The collectability of receivables is affected by numerous different factors including current economic conditions, the impact of tenant bankruptcies, the status of collectability of current cash rents receivable, tenants' recent and historical financial and operating results, changes in our tenants' credit ratings, communications between our operating personnel and tenants, the extent of security deposits and letters of credit held with respect to tenants, and the ability of tenants to perform under the terms of their lease agreement. The provision for doubtful accounts at September 30, 2023 and December 31, 2022 was approximately $1.3 million and $2.1 million, respectively. Rent Concessions – COVID-19 Due to the impacts of COVID-19, from 2020 through 2022 we provided lease concessions to certain tenants, primarily within the retail segment, in the form of rent deferrals and abatements. We assess each lease concession and determine whether it represents a lease modification under Accounting Standards Codification Topic 842, Leases ("ASC 842").
Recent Accounting Pronouncements	Recent Accounting Pronouncements In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848), which provides companies with optional practical expedients to ease the accounting burden for contract modifications associated with transitioning away from LIBOR and other interbank offered rates that have been or are expected to be discontinued as part of reference rate reform. For hedges, the guidance generally allows changes to the reference rate and other critical terms without having to de-designate the hedging relationship, and permits the shortcut method to continue to be applied. For contract modifications, changes in the reference rate or other critical terms will be treated as a continuation of the prior contract. This guidance is generally only available until December 31, 2024. We are still evaluating the impact of reference rate reform and whether we will apply any of these practical expedients.
Fair Value Measurement	A fair value measurement is based on the assumptions that market participants would use in pricing an asset or liability. The hierarchy for inputs used in measuring fair value is as follows: 1.Level 1 Inputs—quoted prices in active markets for identical assets or liabilities 2.Level 2 Inputs—observable inputs other than quoted prices in active markets for identical assets and liabilities 3.Level 3 Inputs—unobservable inputs The carrying values of cash and cash equivalents, restricted cash, accounts receivable, accounts payable and accrued liabilities are reasonable estimates of fair value, using Level 1 inputs, because of the short-term nature of these instruments. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement. We measure the fair value of our deferred compensation liability, which is included in other liabilities and deferred credits on the consolidated balance sheet, on a recurring basis using Level 2 inputs. We measure the fair value of this liability based on prices provided by independent market participants that are based on observable inputs using market-based valuation techniques. The fair value of the interest rate swap agreements are based on the estimated amounts we would receive or pay to terminate the contract at the reporting date and are determined using interest rate pricing models and interest rate related observable inputs. The changes in the fair value of the derivatives that are designated as cash flow hedges are being recorded in accumulated other comprehensive income (loss) and will be subsequently reclassified into earnings during the period in which the hedged forecasted transaction affects earnings. We incorporate credit valuation adjustments to appropriately reflect both our own non-performance risk and the respective counterparty’s non-performance risk in the fair value measurements. In adjusting the fair value of our derivative contracts for the effect of non-performance risk, we considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts, and guarantees. Although we have determined that the majority of the inputs used to value our derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with our derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. However, as of September 30, 2023 we have assessed the significance of the impact of the credit valuation adjustments on the overall valuation of our derivative position and have determined that the credit valuation adjustments are not significant to the overall valuation of our derivative. As a result, we have determined that our derivative valuation in its entirety is classified in Level 2 of the fair value hierarchy.
Derivatives	The effective portion of changes in the fair value of the derivatives that are designated as cash flow hedges are being recorded in accumulated other comprehensive income and will be subsequently reclassified into earnings during the period in which the hedged forecasted transaction affects earnings for as long as hedged cash flows remain probable. During the next twelve months, we estimate the cash flow hedges in place will reduce interest expense by approximately $0.4 million.The valuation of these instruments is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of the derivative. This analysis reflects the contractual terms of the derivative, including the period to maturity, and counterparty credit risk and uses observable market-based inputs, including interest rate curves, and implied volatilities. The fair value of the interest rate swap is determined using the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts). The variable cash payments (or receipts) are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves.

- Definition

Disclosure of accounting policy for segment reporting.

+ References + Details

LEASES - Lease Obligations - Minimum Future Rental Payments from Operating Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Leases [Abstract]
2023 (three months ending December 31, 2023)	$ 844
2024	3,428
2025	3,531
2026	3,584
2027	3,584
Thereafter	12,543
Total lease payments	27,514
Imputed interest	(3,634)
Present value of lease liability	$ 23,880	$ 25,676

SEGMENT REPORTING

9 Months Ended

Sep. 30, 2023

Segment Reporting [Abstract]

SEGMENT REPORTING

Segment information is prepared on the same basis that our management reviews information for operational decision-making purposes. We operate in four business segments: the acquisition, redevelopment, ownership and management of office real estate, retail real estate, multifamily real estate and mixed-use real estate. The products for our office segment primarily include rental of office space and other tenant services, including tenant reimbursements, parking and storage space rental. The products for our retail segment primarily include rental of retail space and other tenant services, including tenant reimbursements, parking and storage space rental. The products for our multifamily segment include rental of apartments and other tenant services. The products of our mixed-use segment include rental of retail space and other tenant services, including tenant reimbursements, parking and storage space rental and operation of a 369-room all-suite hotel.

We evaluate the performance of our segments based on segment profit, which is defined as property revenue less property expenses. We do not use asset information as a measure to assess performance and make decisions to allocate resources. Therefore, depreciation and amortization expense is not allocated among segments. General and administrative expenses, interest expense, depreciation and amortization expense and other income and expense are not included in segment profit as our internal reporting addresses these items on a corporate level.

Segment profit is not a measure of operating income or cash flows from operating activities as measured by GAAP, and it is not indicative of cash available to fund cash needs and should not be considered an alternative to cash flows as a measure of liquidity. Not all companies calculate segment profit in the same manner. We consider segment profit to be an appropriate supplemental measure to net income because it assists both investors and management in understanding the core operations of our properties.

The following table represents operating activity within our reportable segments (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Total Office
Property revenue	$	51,948	$	53,250	$	155,137	$	153,412
Property expense	(15,361)		(14,551)		(45,075)		(41,944)
Segment profit	36,587		38,699		110,062		111,468
Total Retail
Property revenue	26,143		25,694		77,671		74,873
Property expense	(7,504)		(7,807)		(22,763)		(22,965)
Segment profit	18,639		17,887		54,908		51,908
Total Multifamily
Property revenue	15,152		14,748		45,908		42,851
Property expense	(7,262)		(6,871)		(20,579)		(19,171)
Segment profit	7,890		7,877		25,329		23,680
Total Mixed-Use
Property revenue	17,955		17,331		49,957		45,512
Property expense	(11,184)		(10,686)		(31,828)		(28,549)
Segment profit	6,771		6,645		18,129		16,963
Total segments’ profit	$	69,887	$	71,108	$	208,428	$	204,019

The following table is a reconciliation of segment profit to net income attributable to stockholders (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Total segments’ profit	$	69,887	$	71,108	$	208,428	$	204,019
General and administrative	(8,880)		(8,376)		(26,488)		(23,130)
Depreciation and amortization	(29,868)		(31,729)		(89,592)		(93,228)
Interest expense, net	(16,325)		(14,454)		(48,422)		(43,667)


Other income (expense), net	321		(180)		7,272		(523)





Net income	15,135		16,369		51,198		43,471
Net income attributable to restricted shares	(189)		(155)		(568)		(464)
Net income attributable to unitholders in the Operating Partnership	(3,168)		(3,442)		(10,733)		(9,130)
Net income attributable to American Assets Trust, Inc. stockholders	$	11,778	$	12,772	$	39,897	$	33,877

The following table shows net real estate and secured note payable balances for each of the segments (in thousands):


	September 30, 2023		December 31, 2022
Net Real Estate
Office	$	1,616,638	$	1,615,479
Retail	567,354		579,219
Multifamily	363,750		370,993
Mixed-Use	167,527		168,865
	$	2,715,269	$	2,734,556
Secured Notes Payable (1)
Office	$	75,000	$	75,000



	$	75,000	$	75,000

(1)Excludes debt issuance costs of $0.4 million and $0.4 million for each of the periods ended September 30, 2023 and December 31, 2022, respectively.

Capital expenditures for each segment for the three and nine months ended September 30, 2023 and 2022 were as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Capital Expenditures (1)
Office	$	16,105	$	24,107	$	56,642	$	80,824
Retail	1,628		2,165		5,798		9,422
Multifamily	1,977		686		4,506		3,572
Mixed-Use	1,432		197		3,282		649
	$	21,142	$	27,155	$	70,228	$	94,467

(1)Capital expenditures represent cash paid for capital expenditures during the period and include leasing commissions paid.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-15

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 31
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-31

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 40
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-40

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//280/tableOfContent

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 26
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-26

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 34
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-34

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 41
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-41

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-21

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-21

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

+ Details

SEGMENT REPORTING - Narrative (Details)	9 Months Ended
SEGMENT REPORTING - Narrative (Details)	Sep. 30, 2023 segment room
Segment Reporting [Abstract]
Number of operating segments \| segment	4
Room in mixed-use segment all-suite hotel \| room	369

Consolidated Statements of Cash Flows (Unaudited) - LP - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
OPERATING ACTIVITIES
Net income	$ 51,198	$ 43,471
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred rent revenue and amortization of lease intangibles	(6,167)	(8,766)
Depreciation and amortization	89,592	93,228
Amortization of debt issuance costs and debt discounts	2,553	1,930
Provision for uncollectable rental income	1,088	(31)
Stock-based compensation expense	6,254	5,491
Other noncash interest expense, net	(1,051)	(825)
Other, net	(588)	684
Changes in operating assets and liabilities
Change in accounts receivable	(847)	(1,072)
Change in other assets	(2,062)	(1,115)
Change in accounts payable and accrued expenses	9,126	5,753
Change in security deposits payable	252	777
Change in other liabilities and deferred credits	557	1,367
Net cash provided by operating activities	149,905	140,892
INVESTING ACTIVITIES
Acquisition of real estate	0	(45,167)
Capital expenditures	(64,229)	(88,314)
Leasing commissions	(5,999)	(6,153)
Net cash used in investing activities	(70,228)	(139,634)
FINANCING ACTIVITIES
Issuance of secured notes payable	0	75,000
Repayment of secured notes payable	0	(111,000)
Proceeds from unsecured term loan	225,000	0
Proceeds from unsecured line of credit	0	36,000
Repayment of unsecured line of credit	(36,000)	0
Repayment of unsecured notes payable	(150,000)	0
Debt issuance costs	(2,145)	(3,697)
Distributions	(76,135)	(73,639)
Shares withheld for employee taxes	0	(15)
Net cash used in financing activities	(39,280)	(77,351)
Net increase (decrease) in cash and cash equivalents	40,397	(76,093)
Cash and cash equivalents, beginning of period	49,571	139,524
Cash and cash equivalents, end of period	89,968	63,431
Cash and cash equivalents	89,968	63,431
Restricted cash	0	0
Total cash, cash equivalents and restricted cash shown in the consolidated statement of cash flows	89,968	63,431
American Assets Trust, L.P.
OPERATING ACTIVITIES
Net income	51,198	43,471
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred rent revenue and amortization of lease intangibles	(6,167)	(8,766)
Depreciation and amortization	89,592	93,228
Amortization of debt issuance costs and debt discounts	2,553	1,930
Provision for uncollectable rental income	1,088	(31)
Stock-based compensation expense	6,254	5,491
Other noncash interest expense, net	(1,051)	(825)
Other, net	(588)	684
Changes in operating assets and liabilities
Change in accounts receivable	(847)	(1,072)
Change in other assets	(2,062)	(1,115)
Change in accounts payable and accrued expenses	9,126	5,753
Change in security deposits payable	252	777
Change in other liabilities and deferred credits	557	1,367
Net cash provided by operating activities	149,905	140,892
INVESTING ACTIVITIES
Acquisition of real estate	0	(45,167)
Capital expenditures	(64,229)	(88,314)
Leasing commissions	(5,999)	(6,153)
Net cash used in investing activities	(70,228)	(139,634)
FINANCING ACTIVITIES
Issuance of secured notes payable	0	75,000
Repayment of secured notes payable	0	(111,000)
Proceeds from unsecured term loan	225,000	0
Proceeds from unsecured line of credit	0	36,000
Repayment of unsecured line of credit	(36,000)	0
Repayment of unsecured notes payable	(150,000)	0
Debt issuance costs	(2,145)	(3,697)
Distributions	(76,135)	(73,639)
Shares withheld for employee taxes	0	(15)
Net cash used in financing activities	(39,280)	(77,351)
Net increase (decrease) in cash and cash equivalents	40,397	(76,093)
Cash and cash equivalents, beginning of period	49,571	139,524
Cash and cash equivalents, end of period	89,968	63,431
Cash and cash equivalents	89,968	63,431
Restricted cash	0	0
Total cash, cash equivalents and restricted cash shown in the consolidated statement of cash flows	$ 89,968	$ 63,431

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($) employee property segment room	Dec. 31, 2022 USD ($)
Accounting Policies [Abstract]
Number of employees \| employee	229
Office, retail, multifamily, and mixed-use operating properties	31
Properties held for development	3
Number of operating segments \| segment	4
Room in mixed-use segment all-suite hotel \| room	369
Allowance for doubtful accounts \| $	$ 1.3	$ 2.1

EQUITY OF AMERICAN ASSETS TRUST, INC. - Narrative (Details) $ in Thousands		3 Months Ended		9 Months Ended
	Dec. 03, 2021 USD ($) sales_agent	Sep. 30, 2023 USD ($) shares	Sep. 30, 2022 USD ($) shares	Sep. 30, 2023 USD ($) shares	Sep. 30, 2022 USD ($) shares
Equity [Line Items]
Stock-based compensation expense		$ 2,100	$ 2,000	$ 6,254	$ 5,491
Share-based compensation expense not yet recognized		$ 5,800		$ 5,800
Antidilutive securities excluded from computation of EPS (in shares) \| shares		573,949	483,110	573,070	483,895
At The Market Equity Program
Equity [Line Items]
Number of sales agents \| sales_agent	5
Aggregate offering price of common share	$ 250,000
Remaining capacity to issue		$ 250,000		$ 250,000

Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Common stock, par value (in USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	490,000,000	490,000,000
Common stock, shares outstanding (in shares)	60,724,630	60,718,653
Common stock, shares issued (in shares)	60,724,630	60,718,653

FAIR VALUE OF FINANCIAL INSTRUMENTS - Financial Liabilities Fair Value Measurement on a Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation liability	$ 2,501	$ 2,411
Interest rate swap asset	12,648	9,986
Interest rate swap liability	0	196
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation liability	0	0
Interest rate swap asset	0	0
Interest rate swap liability	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation liability	2,501	2,411
Interest rate swap asset	12,648	9,986
Interest rate swap liability	0	196
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation liability	0	0
Interest rate swap asset	0	0
Interest rate swap liability	$ 0	$ 0

EQUITY OF AMERICAN ASSETS TRUST, INC. - Summary of Activity of Restricted Stock Awards (Details) - Restricted Stock Units (RSUs)	9 Months Ended
	Sep. 30, 2023 $ / shares shares
Units
Nonvested, beginning balance (in shares) \| shares	574,044
Granted (in shares) \| shares	10,348
Vested (in shares) \| shares	(6,072)
Forfeited (in shares) \| shares	(4,371)
Nonvested, ending balance (in shares) \| shares	573,949
Weighted Average Grant Date Fair Value
Nonvested, beginning balance (in USD per share) \| $ / shares	$ 20.98
Granted (in USD per share) \| $ / shares	19.33
Vested (in USD per share) \| $ / shares	32.94
Forfeited (in USD per share) \| $ / shares	20.92
Nonvested, ending balance (in USD per share) \| $ / shares	$ 20.87

INCOME TAXES	9 Months Ended
INCOME TAXES	Sep. 30, 2023
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES We elected to be taxed as a REIT and operate in a manner that allows us to qualify as a REIT for federal income tax purposes commencing with our initial taxable year. As a REIT, we are generally not subject to corporate level income tax on the earnings distributed currently to our stockholders that we derive from our REIT qualifying activities. Taxable income from non-REIT activities managed through our TRS is subject to federal and state income taxes. We lease our hotel property to a wholly owned TRS that is subject to federal and state income taxes. We account for income taxes using the asset and liability method, under which deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between GAAP carrying amounts and their respective tax bases. Additionally, we classify certain state taxes as income taxes for financial reporting purposes in accordance with ASC Topic 740, Income Taxes. A deferred tax asset is included in our consolidated balance sheets of $0.7 million and $0.7 million, and a deferred tax liability is included in our consolidated balance sheets of $0.8 million and $0.9 million as of September 30, 2023 and December 31, 2022, respectively, in relation to real estate asset basis differences of property subject to state taxes based on income and certain prepaid expenses of our TRS. Income tax expense is recorded in other (expense) income, net on our consolidated statements of comprehensive income. For the three and nine months ended September 30, 2023, we recorded income tax expense of $0.3 million and $0.8 million, respectively. For the three and nine months ended September 30, 2022, we recorded income tax expense of $0.2 million and $0.6 million, respectively.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//740/tableOfContent

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-14

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-21

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 270
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482526/740-270-50-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 17
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-17

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.5.Q1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479360/740-10-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479360/740-10-S99-2

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482603/740-30-50-2

+ Details

LEASES - Lease Costs & Additional Lease Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Leases [Abstract]
Operating lease cost	$ 932	$ 844	$ 2,786	$ 2,533
Sublease income	(978)	(968)	(2,648)	(2,675)
Total lease cost (income)	$ (46)	$ (124)	$ 138	$ (142)
Weighted-average remaining lease term - operating leases (in years)	7 years 9 months		7 years 9 months
Weighted-average discount rate - operating leases	3.19%		3.19%

COMPONENTS OF RENTAL INCOME AND EXPENSE - Components of Rental Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Leases [Abstract]
Rental operating	$ 13,428	$ 12,272	$ 38,779	$ 34,795
Hotel operating	7,675	7,230	21,935	19,352
Repairs and maintenance	5,652	5,799	16,298	15,868
Marketing	491	489	1,568	1,477
Rent	885	815	2,651	2,405
Hawaii excise tax	1,147	1,231	3,134	2,963
Management fees	634	602	1,763	1,576
Total rental expenses	$ 29,912	$ 28,438	$ 86,128	$ 78,436

OTHER LIABILITIES AND DEFERRED CREDITS

9 Months Ended

Sep. 30, 2023

Other Liabilities Disclosure [Abstract]

OTHER LIABILITIES AND DEFERRED CREDITS

Other liabilities and deferred credits consist of the following (in thousands):


	September 30, 2023		December 31, 2022
Acquired below market leases, net	$	17,296	$	19,664
Prepaid rent and deferred revenue	17,778		17,971
Interest rate swap liability	—		196

Deferred compensation	2,501		2,411
Deferred tax liability	842		852
Straight-line rent liability	10,840		12,746
Lease liability	23,880		25,676
Other liabilities	57		61
Total other liabilities and deferred credits, net	$	73,194	$	79,577

Straight-line rent liability relates to leases which have rental payments that decrease over time or one-time upfront payments for which the rental revenue is deferred and recognized on a straight-line basis.