EQUITY OF AMERICAN ASSETS TRUST, INC. - Dividends Declare and Paid on Shares on Common Stock and Noncontrolling Common Units (Details) - $ / shares	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020
Equity [Abstract]
Dividends period	Second Quarter 2020	First Quarter 2020
Amount per Share/Unit (in USD per unit)	$ 0.20	$ 0.30
Date dividend to be paid	Jun. 25, 2020	Mar. 26, 2020