Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
ASSETS
Operating real estate	$ 1,899,074	$ 1,891,549
Construction in progress	49,378	32,183
Held for development	8,964	14,944
Total Real estate, at cost	1,957,416	1,938,676
Accumulated depreciation	(295,461)	(270,494)
Net real estate	1,661,955	1,668,182
Cash and cash equivalents	63,340	42,479
Restricted cash	9,206	7,421
Accounts receivable, net	7,338	6,440
Deferred rent receivables, net	30,918	29,395
Other assets, net	64,002	73,670
TOTAL ASSETS	1,836,759	1,827,587
LIABILITIES AND EQUITY
Secured notes payable	1,044,299	1,044,682
Accounts payable and accrued expenses	31,285	29,509
Security deposits payable	5,093	4,856
Other liabilities and deferred credits	59,558	62,811
Total liabilities	1,140,235	1,141,858
Commitments and contingencies (Note 10)
American Assets Trust, Inc. stockholders' equity
Common stock $0.01 par value, 490,000,000 shares authorized, 40,445,578 and 39,664,212 shares outstanding at June 30, 2013 (unaudited) and December 31, 2012, respectively	405	397
Additional paid-in capital	690,507	663,589
Accumulated dividends in excess of net income	(35,868)	(25,625)
Total American Assets Trust, Inc. stockholders' equity	655,044	638,361
Noncontrolling interests	41,480	47,368
Total equity	696,524	685,729
TOTAL LIABILITIES AND EQUITY	$ 1,836,759	$ 1,827,587