Loans Receivable - Summary of Real Estate Loans Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022		Sep. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on real estate loans receivable	$ (191,764)	$ (164,249)		$ (164,765)	$ (166,785)
Real estate loans receivable, net of credit allowance	1,181,265	890,844	[1]
Non-real estate loans	484,617	441,231
Allowance for credit losses on non-real estate loans receivable	(173,616)	(152,063)
Non-real estate loans receivable, net of credit allowance	311,001	289,168
Total loans receivable, net of credit allowance	1,492,266	1,180,012
Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Carrying Value	961,268	707,464
Other real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan Carrying Value	238,145	195,566
Allowance for credit losses on real estate loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on real estate loans receivable	$ (18,148)	$ (12,186)

[1] The consolidated balance sheet at December 31, 2022 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements.