Variable Interest Entities and Securitizations - Summary of Unconsolidated Variable Interest Entity (Details) - Variable Interest Entity Not Primary Beneficiary $ in Thousands	Sep. 30, 2022 USD ($)
Variable Interest Entity [Line Items]
Aggregate Principal Balance	$ 22,314
Carrying Value	24,294
Total Exposure	24,294
Rated Notes
Variable Interest Entity [Line Items]
Aggregate Principal Balance	22,004
Carrying Value	21,580
Total Exposure	21,580
Certificates
Variable Interest Entity [Line Items]
Carrying Value	2,404
Total Exposure	2,404
Other Assets
Variable Interest Entity [Line Items]
Aggregate Principal Balance	310
Carrying Value	310
Total Exposure	$ 310