Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
OPERATING ACTIVITIES
Net income	$ 3,722	$ 17,896
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred rent revenue and amortization of lease intangibles	2,096	(1,397)
Depreciation and amortization	66,147	42,168
Amortization of debt issuance costs and debt fair value adjustments	806	2,180
Stock-based compensation expense	1,454	1,278
Settlement of derivative instruments	0	10,667
Other noncash interest expense	(639)	(475)
Other, net	1,495	482
Changes in operating assets and liabilities
Change in accounts receivable	2,220	2,674
Change in other assets	755	468
Change in accounts payable and accrued expenses	1,749	5,869
Change in security deposits payable	2,142	665
Change in other liabilities and deferred credits	370	496
Net cash provided by operating activities	82,317	82,971
INVESTING ACTIVITIES
Acquisition of real estate	0	232,061
Capital expenditures	(20,353)	(19,883)
Leasing commissions	(3,057)	(2,094)
Deposit on property acquisition	0	(1,000)
Net cash used in investing activities	(23,410)	(255,038)
FINANCING ACTIVITIES
Repayment of secured notes payable	(74,476)	(166,439)
Proceeds from unsecured line of credit	35,000	130,000
Repayment of unsecured line of credit	(13,000)	(150,000)
Proceeds from unsecured notes payable	0	350,000
Debt issuance costs	(2,656)	(2,281)
Proceeds from issuance of common stock, net	(236)
Proceeds from issuance of common stock, net		30,075
Dividends paid to common stock and unitholders	(34,776)	(33,448)
Shares withheld for employee taxes	6	0
Net cash (used in) provided by financing activities	(90,150)	157,907
Net (decrease) increase in cash and cash equivalents	(31,243)	(14,160)
Cash, cash equivalents, and restricted cash equivalents, beginning of period	91,954	54,751
Cash, cash equivalents, and restricted cash equivalents, end of period	60,711	40,591
Cash and cash equivalents	51,326	31,380
Restricted cash	9,385	9,211
American Assets Trust, L.P.
OPERATING ACTIVITIES
Net income	3,722	17,896
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred rent revenue and amortization of lease intangibles	2,096	(1,397)
Depreciation and amortization	66,147	42,168
Amortization of debt issuance costs and debt fair value adjustments	806	2,180
Stock-based compensation expense	1,454	1,278
Settlement of derivative instruments	0	10,667
Other noncash interest expense	(639)	(475)
Other, net	1,495	482
Changes in operating assets and liabilities
Change in accounts receivable	2,220	2,674
Change in other assets	755	468
Change in accounts payable and accrued expenses	1,749	5,869
Change in security deposits payable	2,142	665
Change in other liabilities and deferred credits	370	496
Net cash provided by operating activities	82,317	82,971
INVESTING ACTIVITIES
Acquisition of real estate	0	232,061
Capital expenditures	(20,353)	(19,883)
Leasing commissions	(3,057)	(2,094)
Deposit on property acquisition	0	(1,000)
Net cash used in investing activities	(23,410)	(255,038)
FINANCING ACTIVITIES
Repayment of secured notes payable	(74,476)	(166,439)
Proceeds from unsecured line of credit	35,000	130,000
Repayment of unsecured line of credit	(13,000)	(150,000)
Proceeds from unsecured notes payable	0	350,000
Debt issuance costs	(2,656)	(2,281)
Proceeds from issuance of common stock, net	(236)
Contributions from American Assets Trust, Inc.		30,075
Dividends paid to common stock and unitholders	(34,776)	(33,448)
Shares withheld for employee taxes	6	0
Net cash (used in) provided by financing activities	(90,150)	157,907
Net (decrease) increase in cash and cash equivalents	(31,243)	(14,160)
Cash, cash equivalents, and restricted cash equivalents, beginning of period	91,954	54,751
Cash, cash equivalents, and restricted cash equivalents, end of period	60,711	40,591
Cash and cash equivalents	51,326	31,380
Restricted cash	$ 9,385	$ 9,211