Investments in Unconsolidated Joint Ventures - Summary of Financial Information of Unconsolidated Joint Ventures (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended					12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
111 Sutter Street [Member]
Schedule of Equity Method Investments [Line Items]
Proportionate share of real estate impairment loss					$ 31,685			$ 31,685
One Steuart Lane [Member]
Schedule of Equity Method Investments [Line Items]
Impairment loss on for sale condominium units	$ 32,366		$ 68,407			$ 32,366	$ 68,407
One Steuart Lane [Member] | Residential Development Fund's [Member]
Schedule of Equity Method Investments [Line Items]
Proportionate share of impairment loss on for sale condominium units	11,328		$ 23,942			11,328	23,942
Market Center [Member]
Schedule of Equity Method Investments [Line Items]
Proportionate share of real estate impairment loss		$ 229,054					229,054
55 Second Street [Member]
Schedule of Equity Method Investments [Line Items]
Proportionate share of real estate impairment loss	$ 38,429	$ 52,590				38,429	52,590
60 Wall Street [Member]
Schedule of Equity Method Investments [Line Items]
Proportionate share of real estate impairment loss				$ 24,734			24,734
Unconsolidated Joint Ventures [Member] | 111 Sutter Street [Member]
Schedule of Equity Method Investments [Line Items]
Proportionate share of real estate impairment loss								$ 31,685
Unconsolidated Joint Ventures [Member] | One Steuart Lane [Member]
Schedule of Equity Method Investments [Line Items]
Impairment loss on for sale condominium units						32,366	68,407
Unconsolidated Joint Ventures [Member] | One Steuart Lane [Member] | Residential Development Fund's [Member]
Schedule of Equity Method Investments [Line Items]
Proportionate share of impairment loss on for sale condominium units						11,328	23,942
Unconsolidated Joint Ventures [Member] | Market Center [Member]
Schedule of Equity Method Investments [Line Items]
Proportionate share of real estate impairment loss							148,906
Unconsolidated Joint Ventures [Member] | 55 Second Street [Member]
Schedule of Equity Method Investments [Line Items]
Proportionate share of real estate impairment loss						$ 29,818	52,590
Unconsolidated Joint Ventures [Member] | 60 Wall Street [Member]
Schedule of Equity Method Investments [Line Items]
Proportionate share of real estate impairment loss							$ 24,734