Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
ASSETS
Operating real estate	$ 2,539,491	$ 2,536,474
Construction in progress	74,447	68,272
Held for development	9,392	9,392
Total Real estate, at cost	2,623,330	2,614,138
Accumulated depreciation	(568,348)	(537,431)
Net real estate	2,054,982	2,076,707
Cash and cash equivalents	55,336	82,610
Restricted cash	9,889	9,344
Accounts receivable, net	8,797	9,869
Deferred rent receivables, net	39,279	38,973
Other assets, net	45,283	42,361
TOTAL ASSETS	2,213,566	2,259,864
LIABILITIES AND EQUITY
Secured notes payable, net	205,486	279,550
Unsecured notes payable, net	1,045,178	1,045,470
Unsecured line of credit, net	33,031	0
Accounts payable and accrued expenses	43,507	38,069
Security deposits payable	8,683	6,570
Other liabilities and deferred credits, net	48,348	46,061
Total liabilities	1,384,233	1,415,720
Commitments and contingencies (Note 11)
American Assets Trust, Inc. stockholders’ equity
Common stock, $0.01 par value, 490,000,000 shares authorized, 47,203,484 and 47,204,588 shares issued and outstanding at March 31, 2018 and December 31, 2017, respectively	473	473
Additional paid-in capital	919,793	919,066
Accumulated dividends in excess of net loss/income	(110,550)	(97,280)
Accumulated other comprehensive income	13,324	11,451
Total American Assets Trust, Inc. stockholders’ equity	823,040	833,710
Noncontrolling interests	6,293	10,434
Total equity	829,333	844,144
CAPITAL:
TOTAL LIABILITIES AND EQUITY	2,213,566	2,259,864
American Assets Trust, L.P.
ASSETS
Operating real estate	2,539,491	2,536,474
Construction in progress	74,447	68,272
Held for development	9,392	9,392
Total Real estate, at cost	2,623,330	2,614,138
Accumulated depreciation	(568,348)	(537,431)
Net real estate	2,054,982	2,076,707
Cash and cash equivalents	55,336	82,610
Restricted cash	9,889	9,344
Accounts receivable, net	8,797	9,869
Deferred rent receivables, net	39,279	38,973
Other assets, net	45,283	42,361
TOTAL ASSETS	2,213,566	2,259,864
LIABILITIES AND EQUITY
Secured notes payable, net	205,486	279,550
Unsecured notes payable, net	1,045,178	1,045,470
Unsecured line of credit, net	33,031	0
Accounts payable and accrued expenses	43,507	38,069
Security deposits payable	8,683	6,570
Other liabilities and deferred credits, net	48,348	46,061
Total liabilities	1,384,233	1,415,720
Commitments and contingencies (Note 11)
American Assets Trust, Inc. stockholders’ equity
Accumulated other comprehensive income	18,291	15,750
CAPITAL:
Limited partners' capital, 17,194,980 and 17,194,980 units issued and outstanding as of March 31, 2018 and December 31, 2017, respectively	1,326	6,135
General partner's capital, 47,203,484 and 47,204,588 units issued and outstanding as of March 31, 2018 and December 31, 2017, respectively	809,716	822,259
Total capital	829,333	844,144
TOTAL LIABILITIES AND EQUITY	$ 2,213,566	$ 2,259,864