SEGMENT REPORTING - Reconciliation of Segment Profit to Net Income Attributable to Stockholders (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting [Abstract]
Total segments’ profit	$ 68,616	$ 65,896
General and administrative	(8,999)	(7,142)
Depreciation and amortization	(29,901)	(30,412)
Interest expense, net	(15,729)	(14,666)
Other income (expense), net	6,679	(162)
NET INCOME	20,666	13,514
Net income attributable to restricted shares	(189)	(155)
Net income attributable to unitholders in the Operating Partnership	(4,341)	(2,836)
Net income attributable to American Assets Trust, Inc. stockholders	$ 16,136	$ 10,523