Long-Term Debt - Schedule of Collateral for Long-Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Collateral amounts	$ 1,414,099	$ 1,379,856
BPL bridge loans
Debt Instrument [Line Items]
Collateral amounts	922,296	897,782
BPL term loans
Debt Instrument [Line Items]
Collateral amounts	0	66,567
Mortgage servicing rights
Debt Instrument [Line Items]
Collateral amounts	73,366	0
Commercial Real Estate | Facility A | Affiliated Entity
Debt Instrument [Line Items]
Collateral amounts	181,897	178,439
Commercial Real Estate | Facility B | Affiliated Entity
Debt Instrument [Line Items]
Collateral amounts	$ 236,540	$ 237,068