Financial Instruments - Fair Value Measurement Inputs and Valuation Techniques (Details)	Mar. 31, 2025	Dec. 31, 2024
IRLCs | Pull-through rate | Market pricing
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset (Liability) Net, Measurement Input	0.882	0.924
IRLCs | Pull-through rate | Market pricing | Maximum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset (Liability) Net, Measurement Input	1.000	1.000
IRLCs | Pull-through rate | Market pricing | Minimum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset (Liability) Net, Measurement Input	0.701	0.742
MSRs | Prepayment speed | Valuation Technique, Discounted Cash Flow
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset (Liability) Net, Measurement Input	0.082	0.080
MSRs | Prepayment speed | Valuation Technique, Discounted Cash Flow | Maximum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset (Liability) Net, Measurement Input	0.240	0.230
MSRs | Prepayment speed | Valuation Technique, Discounted Cash Flow | Minimum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset (Liability) Net, Measurement Input	0.060	0.060
MSRs | Default rates | Valuation Technique, Discounted Cash Flow
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset (Liability) Net, Measurement Input	0.002	0.002
MSRs | Default rates | Valuation Technique, Discounted Cash Flow | Maximum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset (Liability) Net, Measurement Input	0.011	0.012
MSRs | Default rates | Valuation Technique, Discounted Cash Flow | Minimum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset (Liability) Net, Measurement Input	0.001	0.001
MSRs | Discount rate | Valuation Technique, Discounted Cash Flow
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset (Liability) Net, Measurement Input	0.103	0.103
MSRs | Discount rate | Valuation Technique, Discounted Cash Flow | Maximum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset (Liability) Net, Measurement Input	0.180	0.180
MSRs | Discount rate | Valuation Technique, Discounted Cash Flow | Minimum
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset (Liability) Net, Measurement Input	0.100	0.100