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Principles of Consolidation - Additional Information (Details)	3 Months Ended			12 Months Ended
	Mar. 31, 2024 partnership transaction entity	Dec. 31, 2023 transaction	Sep. 30, 2021 transaction	Dec. 31, 2023 transaction	Dec. 31, 2021 transaction	Dec. 31, 2018 partnership
Variable Interest Entity [Line Items]
Number of partnerships consolidated	2					2
Number of securitization transactions co-sponsored | transaction	2	2	2	2	2
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Number of partnerships consolidated	2
VIE, ownership interest rate (as a percent)	80.00%
Variable Interest Entity, Primary Beneficiary | Servicing Investment
Variable Interest Entity [Line Items]
Number of partnerships consolidated	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 (in entities) | entity	46

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