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Asset-Backed Securities Issued - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Jan. 31, 2027	Mar. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
AFS		$ 204,602	$ 211,474
Carrying value of collateral		4,004,655	$ 3,701,592
Sequoia Re-securitization Trust
Debt Instrument [Line Items]
AFS		$ 102,000
VIEs
Debt Instrument [Line Items]
VIE, ownership interest rate (as a percent)		80.00%
VIEs | Sequoia Re-securitization Trust
Debt Instrument [Line Items]
AFS		$ 20,000
Asset-backed securities issued | VIEs
Debt Instrument [Line Items]
Contractual maturities of ABS		5 years
Sequoia securities | VIEs
Debt Instrument [Line Items]
ABS issued, at amortized cost		$ 100,000
Debt Instrument interest rate		8.50%
VIE, ownership interest rate (as a percent)		100.00%
Sequoia securities | VIEs | Forecast
Debt Instrument [Line Items]
Increase in interest rate (as a percent)	3.00%
Sequoia Securitization Trusts | VIEs
Debt Instrument [Line Items]
Carrying value of collateral		$ 88,000

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