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DEBT - Summary of Total Secured Notes Payable Outstanding (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Debt issuance costs, net of accumulated amortization of $700 and $632, respectively	$ (162)	$ (648)
Accumulated amortization	2,429	1,943
Secured notes payable, net | American Assets Trust, L.P.
Debt Instrument [Line Items]
Principal Balance	75,000	75,000
Debt issuance costs, net of accumulated amortization of $700 and $632, respectively	(173)	(241)
Total Secured Notes Payable Outstanding	74,827	74,759
Accumulated amortization	700	632
5.08% City Center Bellevue, October 2027 | Secured notes payable, net | American Assets Trust, L.P.
Debt Instrument [Line Items]
Principal Balance	$ 75,000	$ 75,000
Stated Interest Rate	5.08%

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