Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
REVENUE:
Rental income	$ 59,222	$ 53,008
Other property income	2,958	2,441
Total revenue	62,180	55,449
EXPENSES:
Rental expenses	16,286	14,818
Real estate taxes	4,800	5,241
General and administrative	4,201	3,725
Depreciation and amortization	17,013	14,854
Total operating expenses	42,300	38,638
OPERATING INCOME	19,880	16,811
Interest expense	(14,736)	(13,901)
Other income (expense), net	(279)	(146)
INCOME FROM CONTINUING OPERATIONS	4,865	2,764
Discontinued operations
Results from discontinued operations		107
NET INCOME	4,865	2,871
Net income attributable to restricted shares	(132)	(132)
Net income attributable to unitholders in the Operating Partnership	(1,495)	(883)
NET INCOME ATTRIBUTABLE TO AMERICAN ASSETS TRUST, INC. STOCKHOLDERS	$ 3,238	$ 1,856
EARNINGS PER COMMON SHARE, BASIC
Continuing operations	$ 0.08	$ 0.05
Discontinued operations
Basic net income attributable to common stockholders per share	$ 0.08	$ 0.05
Weighted average shares of common stock outstanding-basic	39,033,013	38,657,170
EARNINGS PER COMMON SHARE, DILUTED
Continuing operations	$ 0.08	$ 0.05
Discontinued operations
Diluted net income attributable to common stockholders per share	$ 0.08	$ 0.05
Weighted average shares of common stock outstanding-diluted	57,056,448	57,053,259
Dividends declared per common share	$ 0.21	$ 0.21