Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
REVENUE:
Rental income	$ 59,705	$ 53,740	$ 118,927	$ 106,748
Other property income	3,209	2,391	6,167	4,832
Total revenue	62,914	56,131	125,094	111,580
EXPENSES:
Rental expenses	16,686	15,506	32,972	30,324
Real estate taxes	5,476	5,743	10,276	10,984
General and administrative	4,426	3,911	8,627	7,636
Depreciation and amortization	16,953	14,329	33,966	29,183
Total operating expenses	43,541	39,489	85,841	78,127
OPERATING INCOME	19,373	16,642	39,253	33,453
Interest expense	(14,744)	(14,028)	(29,480)	(27,929)
Other income (expense), net	(65)	(217)	(344)	(363)
INCOME FROM CONTINUING OPERATIONS	4,564	2,397	9,429	5,161
Discontinued operations
Results from discontinued operations	0	227	0	334
NET INCOME	4,564	2,624	9,429	5,495
Net income attributable to restricted shares	(133)	(131)	(265)	(263)
Net income attributable to unitholders in the Operating Partnership	(1,354)	(804)	(2,849)	(1,687)
NET INCOME ATTRIBUTABLE TO AMERICAN ASSETS TRUST, INC. STOCKHOLDERS	$ 3,077	$ 1,689	$ 6,315	$ 3,545
EARNINGS PER COMMON SHARE, BASIC
Continuing operations	$ 0.08	$ 0.04	$ 0.16	$ 0.08
Discontinued operations	$ 0.00	$ 0.00	$ 0.00	$ 0.01
Basic net income attributable to common stockholders per share	$ 0.08	$ 0.04	$ 0.16	$ 0.09
Weighted average shares of common stock outstanding-basic	39,460,086	38,659,155	39,247,729	38,658,162
EARNINGS PER COMMON SHARE, DILUTED
Continuing operations	$ 0.08	$ 0.04	$ 0.16	$ 0.08
Discontinued operations	$ 0.00	$ 0.00	$ 0.00	$ 0.01
Diluted net income attributable to common stockholders per share	$ 0.08	$ 0.04	$ 0.16	$ 0.09
Weighted average shares of common stock outstanding-diluted	57,429,837	57,055,244	57,244,174	57,054,509
Dividends declared per common share	$ 0.21	$ 0.21	$ 0.42	$ 0.42