Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
OPERATING ACTIVITIES
Net income		$ 1,733	$ 15,484
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred rent revenue and amortization of lease intangibles		(6,292)	(3,762)
Depreciation and amortization		27,501	27,462
Amortization of debt issuance costs and debt discounts		577	374
Early extinguishment of debt		4,271	0
Provision for uncollectable rental income		3,213	370
Stock-based compensation expense		1,484	1,250
Other noncash interest expense		(275)	(333)
Other, net		32	(3,940)
Changes in operating assets and liabilities
Change in accounts receivable		(1,841)	3,632
Change in other assets		651	616
Change in accounts payable and accrued expenses		11,098	4,435
Change in security deposits payable		39	30
Change in other liabilities and deferred credits		314	(257)
Net cash provided by operating activities		42,505	45,361
INVESTING ACTIVITIES
Capital expenditures		(11,372)	(20,531)
Leasing commissions		(844)	(3,394)
Net cash used in investing activities		(12,216)	(23,925)
FINANCING ACTIVITIES
Repayment of secured notes payable		0	(51,003)
Repayment of unsecured line of credit		(100,000)	0
Proceeds from unsecured notes payable		494,675	0
Repayments of Unsecured Debt		(155,375)	0
Debt issuance costs		(5,025)	0
Proceeds from issuance of common stock, net		0	(119)
Dividends paid to common stock and unitholders		(21,463)	(22,937)
Net cash provided by (used in) financing activities		212,812	(74,059)
Net increase (decrease) in cash and cash equivalents		243,101	(52,623)
Cash, cash equivalents and restricted cash, beginning of period		139,049	109,451
Cash, cash equivalents and restricted cash, end of period		382,150	56,828
Cash and cash equivalents		380,434	52,371
Restricted cash		1,716	4,457
Noncontrolling Interests - Unitholders in the Operating Partnership
OPERATING ACTIVITIES
Net income		339	3,312
American Assets Trust, L.P.
OPERATING ACTIVITIES
Net income		1,733	15,484
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred rent revenue and amortization of lease intangibles		(6,292)	(3,762)
Depreciation and amortization		27,501	27,462
Amortization of debt issuance costs and debt discounts		577	374
Early extinguishment of debt		4,271	0
Provision for uncollectable rental income		3,213	370
Stock-based compensation expense		1,484	1,250
Other noncash interest expense		(275)	(333)
Other, net		32	(3,940)
Changes in operating assets and liabilities
Change in accounts receivable		(1,841)	3,632
Change in other assets		651	616
Change in accounts payable and accrued expenses		11,098	4,435
Change in security deposits payable		39	30
Change in other liabilities and deferred credits		314	(257)
Net cash provided by operating activities		42,505	45,361
INVESTING ACTIVITIES
Capital expenditures		(11,372)	(20,531)
Leasing commissions		(844)	(3,394)
Net cash used in investing activities		(12,216)	(23,925)
FINANCING ACTIVITIES
Repayment of secured notes payable		0	(51,003)
Repayment of unsecured line of credit		(100,000)	0
Proceeds from unsecured notes payable		494,675	0
Repayments of Unsecured Debt		(155,375)	0
Debt issuance costs		(5,025)	0
Contributions from American Assets Trust, Inc.		0
Contributions from American Assets Trust, Inc.			(119)
Dividends paid to common stock and unitholders		(21,463)	(22,937)
Net cash provided by (used in) financing activities		212,812	(74,059)
Net increase (decrease) in cash and cash equivalents		243,101	(52,623)
Cash, cash equivalents and restricted cash, beginning of period		139,049	109,451
Cash, cash equivalents and restricted cash, end of period		382,150	56,828
Cash and cash equivalents		380,434	52,371
Restricted cash		1,716	4,457
American Assets Trust, L.P. | Limited Partner
OPERATING ACTIVITIES
Net income	[1]	339	3,312
American Assets Trust, L.P. | General Partner
OPERATING ACTIVITIES
Net income	[2]	$ 1,394	$ 12,172

[1] Consists of limited partnership interests held by third parties.

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