Consolidated Balance Sheets (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Assets
Operating real estate	$ 1,633,287	$ 1,156,091
Construction in progress	1,144	925
Held for development	8,756	8,081
Total Real estate, at cost	1,643,187	1,165,097
Accumulated depreciation	(240,603)	(221,997)
Net real estate	1,402,584	943,100
Cash and cash equivalents	92,535	41,953
Restricted cash	8,077	4,729
Marketable securities	31,445
Accounts receivable, net	4,944	1,573
Deferred rent receivables, net	21,665	20,051
Notes receivable from affiliate		21,769
Investment in real estate joint ventures		39,816
Prepaid expenses and other assets	69,915	44,366
Purchase deposits	91,600
Total assets	1,722,765	1,117,357
Liabilities and equity
Secured notes payable	944,279	851,547
Unsecured notes payable		38,013
Notes payable to affiliates		5,266
Accounts payable and accrued expenses	20,007	11,644
Security deposits payable	4,302	2,648
Other liabilities and deferred credits	56,922	39,058
Distributions in excess of earnings on real estate joint ventures		14,060
Total liabilities	1,025,510	962,236
Commitments and contingencies (Note 11)
Equity:
Owners' equity		121,874
American Assets Trust, Inc. stockholders' equity
Common stock $0.01 par value, 490,000,000 authorized, 39,281,839 outstanding at June 30, 2011	393
Additional paid-in capital	652,220
Accumulated deficit	(15,168)
Total American Assets Trust, Inc. stockholders' equity	637,445
Noncontrolling interests
Owners in consolidated real estate entities		33,247
Unitholders in the Operating Partnership	59,810
Total Noncontrolling interests	59,810	33,247
Total equity	697,255	155,121
Total liabilities and equity	$ 1,722,765	$ 1,117,357