Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
ASSETS
Operating real estate	$ 1,900,185	$ 1,891,549
Construction in progress	62,478	32,183
Held for development	9,006	14,944
Total Real estate, at cost	1,971,669	1,938,676
Accumulated depreciation	(305,880)	(270,494)
Net real estate	1,665,789	1,668,182
Cash and cash equivalents	65,722	42,479
Restricted cash	10,065	7,421
Accounts receivable, net	7,579	6,440
Deferred rent receivables, net	31,665	29,395
Other assets, net	60,026	73,670
TOTAL ASSETS	1,840,846	1,827,587
LIABILITIES AND EQUITY
Secured notes payable	1,044,117	1,044,682
Accounts payable and accrued expenses	41,256	29,509
Security deposits payable	5,010	4,856
Other liabilities and deferred credits	59,219	62,811
Total liabilities	1,149,602	1,141,858
Commitments and contingencies (Note 11)
American Assets Trust, Inc. stockholders’ equity
Common stock, $0.01 par value, 490,000,000 shares authorized, 40,448,393 and 39,664,212 shares outstanding at September 30, 2013 (unaudited) and December 31, 2012, respectively	405	397
Additional paid-in capital	691,389	663,589
Accumulated dividends in excess of net income	(40,007)	(25,625)
Total American Assets Trust, Inc. stockholders’ equity	651,787	638,361
Noncontrolling interests	39,457	47,368
Total equity	691,244	685,729
TOTAL LIABILITIES AND EQUITY	$ 1,840,846	$ 1,827,587