Debt and Preferred Equity Investments - Rollforward of Net Book Balance (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]
Balance at beginning of period	$ 623,280	$ 1,088,723
Redemptions/sales/syndications/equity ownership/amortization	0	(565,940)
Net change in loan loss reserves	(6,890)	0
Balance at end of period	636,476	623,280
Debt investment originations/fundings/accretion
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]
Originations/Accretion	16,115	62,992
Preferred equity investment originations/accretion
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]
Originations/Accretion	$ 3,971	$ 37,505