Consolidated Balance Sheets - LP (Parenthetical) - American Assets Trust, L.P. - shares	Dec. 31, 2022	Dec. 31, 2021
Limited partners' capital, units outstanding (in shares)	16,181,537	16,181,537
Limited partners' capital, units issued (in shares)	16,181,537	16,181,537
General partners' capital, units issued (in shares)	60,718,653	60,525,580
General partners' capital, units outstanding (in shares)	60,718,653	60,525,580