Consolidated Statements Of Operations (USD $) In Thousands, except Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenue:
Rental income	$ 53,278	$ 33,903	$ 146,860	$ 88,213
Other property income	3,015	1,060	7,416	2,762
Total revenue	56,293	34,963	154,276	90,975
Expenses:
Rental expenses	16,187	5,977	42,720	15,358
Real estate taxes	5,390	3,442	14,800	9,208
General and administrative	3,733	1,515	10,786	4,908
Depreciation and amortization	15,827	12,599	41,916	26,714
Total operating expenses	41,137	23,533	110,222	56,188
Operating income	15,156	11,430	44,054	34,787
Interest expense	(14,738)	(12,416)	(41,791)	(32,979)
Early extinguishment of debt			(25,867)
Loan transfer and consent fees			(9,019)
Gain on acquisition			46,371	4,297
Other income (expense), net	(108)	(251)	(179)	(1,167)
Income (loss) from continuing operations	310	(1,237)	13,569	4,938
Discontinued operations
Income from discontinued operations	327	44	1,119	232
Gain on sale of real estate property	3,981		3,981
Results from discontinued operations	4,308	44	5,100	232
Net income (loss)	4,618	(1,193)	18,669	5,170
Net income attributable to restricted shares	(132)		(350)
Net loss attributable to Predecessor's noncontrolling interests in consolidated real estate entities		1,042	2,458	1,941
Net (income) loss attributable to Predecessor's controlled owners' equity		151	(16,995)	(7,111)
Net income attributable to unitholders in the Operating Partnership	(1,434)		(1,209)
Net income attributable to American Assets Trust, Inc. stockholders	$ 3,052		$ 2,573
Basic net income (loss) from continuing operations attributable to common stockholders per share	$ 0.00		$ (0.03)
Basic net income from discontinued operations attributable to common stockholders per share	$ 0.08		$ 0.10
Basic net income attributable to common stockholders per share	$ 0.08		$ 0.07
Weighted average shares of common stock outstanding-basic	38,655,084		36,106,397
Diluted net income (loss) from continuing operations attributable to common stockholders per share	$ 0.00		$ (0.03)
Diluted net income from discontinued operations attributable to common stockholders per share	$ 0.08		$ 0.10
Diluted net income attributable to common stockholders per share	$ 0.08		$ 0.07
Weighted average shares of common stock outstanding-diluted	57,051,173		53,265,648
Dividends declared per common share	$ 0.21		$ 0.59