Consolidated Balance Sheets - LP (Parenthetical) - American Assets Trust, L.P. - shares	Mar. 31, 2024	Dec. 31, 2023
Limited partners' capital, units issued (in shares)	16,181,537	16,181,537
Limited partners' capital, units outstanding (in shares)	16,181,537	16,181,537
General partners' capital, units issued (in shares)	60,894,491	60,895,786
General partners' capital, units outstanding (in shares)	60,894,491	60,895,786