Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
REVENUE:
Rental income		$ 78,079	$ 78,135	$ 231,172	$ 221,100
Other property income		4,428	4,204	17,090	12,137
Total revenue		82,507	82,339	248,262	233,237
Cost of Other Property Operating Expense		21,383	21,177	62,685	60,877
EXPENSES:
Real estate taxes		8,787	8,535	25,961	23,975
General and administrative		5,176	4,958	16,139	15,171
Depreciation and amortization		19,886	21,192	86,033	63,360
Total operating expenses		55,232	55,862	190,818	163,383
OPERATING INCOME		27,275	26,477	57,444	69,854
Interest expense		(12,879)	(13,873)	(39,387)	(39,856)
Other (expense) income, net		(125)	(99)	(64)	403
NET INCOME		14,271	12,505	17,993	30,401
Net income attributable to restricted shares		(71)	(60)	(215)	(181)
Net income attributable to unitholders in the Operating Partnership		(3,806)	(3,351)	(4,765)	(8,220)
NET INCOME ATTRIBUTABLE TO AMERICAN ASSETS TRUST, INC. STOCKHOLDERS		$ 10,394	$ 9,094	$ 13,013	$ 22,000
EARNINGS PER COMMON SHARE
Earnings per common share, basic (in USD per share)		$ 0.22	$ 0.19	$ 0.28	$ 0.47
Weighted average shares of common stock outstanding-basic (in shares)		46,959,752	46,898,086	46,945,095	46,650,403
EARNINGS PER COMMON SHARE, DILUTED
Earnings per common share, diluted (in USD per share)		$ 0.22	$ 0.19	$ 0.28	$ 0.47
Weighted average shares of common stock outstanding-diluted (in shares)		64,137,360	64,093,066	64,133,584	64,081,697
Dividends declared per common share (in USD per share)		$ 0.27	$ 0.26	$ 0.81	$ 0.78
COMPREHENSIVE INCOME
Other comprehensive income (loss) - unrealized income (loss) on swap derivative during the period		$ 567	$ 87	$ 4,303	$ (1,427)
Reclassification of amortization of forward-starting swap included in interest expense		(320)	(319)	(959)	(794)
Comprehensive income		14,518	12,273	21,337	28,180
Comprehensive income attributable to non-controlling interest		(3,872)	(3,263)	(5,645)	(7,447)
Comprehensive income attributable to American Assets Trust, Inc.		10,646	9,010	15,692	20,733
American Assets Trust, L.P.
REVENUE:
Rental income		78,079	78,135	231,172	221,100
Other property income		4,428	4,204	17,090	12,137
Total revenue		82,507	82,339	248,262	233,237
Cost of Other Property Operating Expense		21,383	21,177	62,685	60,877
EXPENSES:
Real estate taxes		8,787	8,535	25,961	23,975
General and administrative		5,176	4,958	16,139	15,171
Depreciation and amortization		19,886	21,192	86,033	63,360
Total operating expenses		55,232	55,862	190,818	163,383
OPERATING INCOME		27,275	26,477	57,444	69,854
Interest expense		(12,879)	(13,873)	(39,387)	(39,856)
Other (expense) income, net		(125)	(99)	(64)	403
NET INCOME		14,271	12,505	17,993	30,401
Net income attributable to restricted shares		(71)	(60)	(215)	(181)
NET INCOME ATTRIBUTABLE TO AMERICAN ASSETS TRUST, INC. STOCKHOLDERS		$ 14,200	$ 12,445	$ 17,778	$ 30,220
EARNINGS PER COMMON SHARE
Earnings per common share, basic (in USD per share)		$ 0.22	$ 0.19	$ 0.28	$ 0.47
Weighted average shares of common stock outstanding-basic (in shares)		64,137,360	64,093,066	64,133,584	64,081,697
EARNINGS PER COMMON SHARE, DILUTED
Earnings per common share, diluted (in USD per share)		$ 0.22	$ 0.19	$ 0.28	$ 0.47
Weighted average shares of common stock outstanding-diluted (in shares)		64,137,360	64,093,066	64,133,584	64,081,697
Distributions per unit (in USD per share)		$ 0.27	$ 0.26	$ 0.81	$ 0.78
COMPREHENSIVE INCOME
Other comprehensive income (loss) - unrealized income (loss) on swap derivative during the period		$ 567	$ 87	$ 4,303	$ (1,427)
Reclassification of amortization of forward-starting swap included in interest expense		(320)	(319)	(959)	(794)
Comprehensive income		14,518	12,273	21,337	28,180
Limited Partner | American Assets Trust, L.P.
EXPENSES:
NET INCOME	[1]			4,765
COMPREHENSIVE INCOME
Comprehensive income attributable to American Assets Trust, Inc.		(3,872)	(3,263)	(5,645)	(7,447)
General Partner | American Assets Trust, L.P.
EXPENSES:
NET INCOME	[2]			13,228
COMPREHENSIVE INCOME
Comprehensive income attributable to American Assets Trust, Inc.		$ 10,646	$ 9,010	$ 15,692	$ 20,733

[1] Consists of limited partnership interests held by third parties.

[2] Consists of general partnership interests held by American Assets Trust, Inc.