Variable Interest Entities and Securitizations - Summary of Unconsolidated Variable Interest Entity (Details) - Variable Interest Entity Not Primary Beneficiary - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Aggregate Principal Balance	$ 4,848	$ 19,543
Carrying Value	4,795	20,902
Total Exposure	4,795	20,902
Rated Notes
Variable Interest Entity [Line Items]
Aggregate Principal Balance	4,538	19,233
Carrying Value	4,345	18,664
Total Exposure	4,345	18,664
Certificates
Variable Interest Entity [Line Items]
Carrying Value	140	1,928
Total Exposure	140	1,928
Other Assets
Variable Interest Entity [Line Items]
Aggregate Principal Balance	310	310
Carrying Value	310	310
Total Exposure	$ 310	$ 310