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Principles of Consolidation - Additional Information (Details)	3 Months Ended		12 Months Ended
	Dec. 31, 2023 entity transaction	Sep. 30, 2021 transaction	Dec. 31, 2023 entity partnership	Dec. 31, 2021 transaction	Dec. 31, 2018 partnership
Variable Interest Entity [Line Items]
Number of partnerships consolidated | partnership			2		2
Number of securitization transactions co-sponsored | transaction	2	2		2
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Number of partnerships consolidated | partnership			2
VIE, ownership interest rate (as a percent)			80.00%
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Number of securitization entities to which asset transferred | entity	46		46
Servicing Investment | Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Number of partnerships consolidated | entity			2
VIE, ownership interest rate (as a percent)			80.00%

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