Beneficial Interests - Schedule of Maximum Exposure to Losses by Asset Type (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Schedule Of Beneficial Interest [Line Items]
Aggregate capital under risk-sharing arrangements	$ 1,078,320	$ 931,760
Cash and cash equivalents
Schedule Of Beneficial Interest [Line Items]
Aggregate capital under risk-sharing arrangements	196,009	160,055
Restricted cash
Schedule Of Beneficial Interest [Line Items]
Aggregate capital under risk-sharing arrangements	257,780	219,412
Beneficial interests
Schedule Of Beneficial Interest [Line Items]
Aggregate capital under risk-sharing arrangements	458,192	389,566
Line of credit receivable
Schedule Of Beneficial Interest [Line Items]
Aggregate capital under risk-sharing arrangements	107,596	108,965
Loans
Schedule Of Beneficial Interest [Line Items]
Aggregate capital under risk-sharing arrangements	58,743	53,762
Line of Credit Receivable and Beneficial Interest Asset
Schedule Of Beneficial Interest [Line Items]
Assets held by institutional investor	$ 190,200	$ 191,600