Variable Interest Entities and Securitizations - Summary of Unconsolidated Variable Interest Entity (Details) - Variable Interest Entity Not Primary Beneficiary - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Variable Interest Entity [Line Items]
Aggregate Principal Balance	$ 2,895	$ 4,848
Carrying Value	2,922	4,795
Total Exposure	2,922	4,795
Rated Notes
Variable Interest Entity [Line Items]
Aggregate Principal Balance	2,585	4,538
Carrying Value	2,440	4,345
Total Exposure	2,440	4,345
Certificates
Variable Interest Entity [Line Items]
Carrying Value	172	140
Total Exposure	172	140
Other Assets
Variable Interest Entity [Line Items]
Aggregate Principal Balance	310	310
Carrying Value	310	310
Total Exposure	$ 310	$ 310