Loans Receivable - Schedule of Loans Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Unamortized discounts and fees	$ (131)	$ (808)
Reserve for loan losses	(2,830)	(8,280)	$ (1,813)
Loans receivable, net	218,450	374,832
Remaining loans receivable commitments	29,000	40,000
Interest income	21,781	23,300	37,773
Mortgage Receivable
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, gross	175,717
Interest income	22,000	22,000	36,000
Secured loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, gross	178,678	350,837
Reserve for loan losses	(2,830)	(8,280)	$ (1,804)
CCRC resident loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, gross	$ 42,733	$ 33,083