Fair Value of Financial Instruments - Narrative (Details)	Mar. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loansheldfor investment, fair value option, measurement input	0.10
Measurement Input, Constant Prepayment Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, Measurement Input	0.10
Measurement Input, Default Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, Measurement Input	0.02
Loansheldfor investment, fair value option, measurement input	0.02
Measurement Input, Loss Severity
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, Measurement Input	0.20
Loansheldfor investment, fair value option, measurement input	0.20
Measurement Input, Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFS, Measurement Input	0.102
Loansheldfor investment, fair value option, measurement input	0.102