Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
OPERATING ACTIVITIES
Net income	$ 27,184	$ 3,722
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred rent revenue and amortization of lease intangibles	2,562	2,096
Depreciation and amortization	43,165	66,147
Amortization of debt issuance costs and debt fair value adjustments	724	806
Gain on sale of real estate	633	0
Stock-based compensation expense	2,229	1,454
Lease termination income	(4,518)	0
Other noncash interest expense	(639)	(639)
Other, net	(380)	1,495
Changes in operating assets and liabilities
Change in accounts receivable	(177)	2,220
Change in other assets	1,305	755
Change in accounts payable and accrued expenses	3,453	1,749
Change in security deposits payable	(1,380)	2,142
Change in other liabilities and deferred credits	(2,726)	370
Net cash provided by operating activities	70,169	82,317
INVESTING ACTIVITIES
Acquisition of real estate	(507,780)	0
Capital expenditures	(47,838)	(20,353)
Proceeds from sale of real estate, net of selling costs	8,191	0
Leasing commissions	(2,623)	(3,057)
Net cash used in investing activities	(550,050)	(23,410)
FINANCING ACTIVITIES
Repayment of secured notes payable	(20,187)	(74,476)
Proceeds from unsecured line of credit	59,000	35,000
Repayment of unsecured line of credit	(28,000)	(13,000)
Debt issuance costs	(424)	(2,656)
Proceeds from issuance of common stock, net	503,014
Proceeds from issuance of common stock, net		(236)
Dividends paid to common stock and unitholders	(36,314)	(34,776)
Payment, Tax Withholding, Share-based Payment Arrangement	0	6
Net cash provided by (used in) financing activities	477,089	(90,150)
Net (decrease) increase in cash and cash equivalents	(2,792)	(31,243)
Cash, cash equivalents, and restricted cash equivalents, beginning of period	57,272	91,954
Cash, cash equivalents, and restricted cash equivalents, end of period	54,480	60,711
Cash and cash equivalents	44,778	51,326
Restricted cash	9,702	9,385
American Assets Trust, L.P.
OPERATING ACTIVITIES
Net income	27,184	3,722
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred rent revenue and amortization of lease intangibles	2,562	2,096
Depreciation and amortization	43,165	66,147
Amortization of debt issuance costs and debt fair value adjustments	724	806
Gain on sale of real estate	633	0
Stock-based compensation expense	2,229	1,454
Lease termination income	(4,518)	0
Other noncash interest expense	(639)	(639)
Other, net	(380)	1,495
Changes in operating assets and liabilities
Change in accounts receivable	(177)	2,220
Change in other assets	1,305	755
Change in accounts payable and accrued expenses	3,453	1,749
Change in security deposits payable	(1,380)	2,142
Change in other liabilities and deferred credits	(2,726)	370
Net cash provided by operating activities	70,169	82,317
INVESTING ACTIVITIES
Acquisition of real estate	(507,780)	0
Capital expenditures	(47,838)	(20,353)
Proceeds from sale of real estate, net of selling costs	8,191	0
Leasing commissions	(2,623)	(3,057)
Net cash used in investing activities	(550,050)	(23,410)
FINANCING ACTIVITIES
Repayment of secured notes payable	(20,187)	(74,476)
Proceeds from unsecured line of credit	59,000	35,000
Repayment of unsecured line of credit	(28,000)	(13,000)
Debt issuance costs	(424)	(2,656)
Contributions from American Assets Trust, Inc.	503,014
Proceeds from issuance of common stock, net		(236)
Dividends paid to common stock and unitholders	(36,314)	(34,776)
Payment, Tax Withholding, Share-based Payment Arrangement	0	6
Net cash provided by (used in) financing activities	477,089	(90,150)
Net (decrease) increase in cash and cash equivalents	(2,792)	(31,243)
Cash, cash equivalents, and restricted cash equivalents, beginning of period	57,272	91,954
Cash, cash equivalents, and restricted cash equivalents, end of period	54,480	60,711
Cash and cash equivalents	44,778	51,326
Restricted cash	$ 9,702	$ 9,385