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Fair Value Measurements - Unobservable Inputs (Details) - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Min | MSRs(1) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Option adjusted spread(2) | 7.10% | 6.90%
Prepayment speed | 7.50% | 6.80%
Cost to service per loan(3) | $ 45 | $ 45
Min | Mortgage loans held for sale |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Market pricing | $ 0.450 | $ 0.450
Min | Excess spread financing |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Option adjusted spread(2) | 7.10% | 6.90%
Prepayment speed | 7.80% | 7.20%
Min | Mortgage servicing rights financing |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Advance financing and counterparty fee rates | 7.30% | 7.20%
Annual advance recovery rates | 16.00% | 14.90%
Min | Interest Rate Lock Commitments [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Value of servicing (reflected as a percentage of loan commitment) | 0 | 0
Max | MSRs(1) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Option adjusted spread(2) | 12.20% | 12.20%
Prepayment speed | 10.10% | 9.30%
Cost to service per loan(3) | $ 115 | $ 114
Max | Mortgage loans held for sale |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Market pricing | $ 0.979 | $ 0.973
Max | Excess spread financing |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Option adjusted spread(2) | 12.30% | 12.30%
Prepayment speed | 8.00% | 7.60%
Max | Mortgage servicing rights financing |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Advance financing and counterparty fee rates | 8.60% | 9.00%
Annual advance recovery rates | 16.90% | 16.80%
Max | Interest Rate Lock Commitments [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Value of servicing (reflected as a percentage of loan commitment) | 0.034 | 0.036
Weighted Average | MSRs(1) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Option adjusted spread(2) | 7.90% | 7.60%
Prepayment speed | 8.40% | 7.70%
Cost to service per loan(3) | $ 59 | $ 58
Average life(4) | 7 years 4 months 24 days | 7 years 9 months 18 days
Weighted Average | Mortgage loans held for sale |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Market pricing | $ 0.807 | $ 0.801
Weighted Average | Excess spread financing |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Option adjusted spread(2) | 8.90% | 8.70%
Prepayment speed | 7.90% | 7.50%
Average life(4) | 6 years 6 months | 6 years 9 months 18 days
Weighted Average | Mortgage servicing rights financing |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Advance financing and counterparty fee rates | 8.30% | 8.50%
Annual advance recovery rates | 16.70% | 16.00%
Weighted Average | Interest Rate Lock Commitments [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Value of servicing (reflected as a percentage of loan commitment) | 0.015 | 0.017

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