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Fair Value Measurements - Unobservable Inputs (Details) - USD ($) | 9 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
Min | MSRs(1) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Option adjusted spread(2) | 6.80% | 6.90%
Prepayment speed | 6.80% | 6.80%
Cost to service per loan(3) | $ 47 | $ 56
Min | Mortgage loans held for sale |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Market pricing | $ 0.450 | $ 0.450
Min | IRLCs |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Value of servicing (reflected as a percentage of loan commitment) | 0 | 0.011
Min | Excess spread financing |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Option adjusted spread(2) | 6.90% | 7.00%
Prepayment speed | 7.30% | 7.70%
Min | Mortgage servicing rights financing |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Advance financing and counterparty fee rates | 7.00% | 6.60%
Annual advance recovery rates | 15.40% | 12.20%
Max | MSRs(1) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Option adjusted spread(2) | 12.30% | 12.30%
Prepayment speed | 10.20% | 9.30%
Cost to service per loan(3) | $ 119 | $ 160
Max | Mortgage loans held for sale |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Market pricing | $ 1.035 | $ 1.034
Max | IRLCs |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Value of servicing (reflected as a percentage of loan commitment) | 0.034 | 0.035
Max | Excess spread financing |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Option adjusted spread(2) | 12.30% | 12.30%
Prepayment speed | 8.40% | 9.10%
Max | Mortgage servicing rights financing |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Advance financing and counterparty fee rates | 9.00% | 9.20%
Annual advance recovery rates | 16.90% | 14.80%
Weighted Average | MSRs(1) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Option adjusted spread(2) | 7.60% | 8.00%
Prepayment speed | 9.00% | 7.50%
Cost to service per loan(3) | $ 62 | $ 80
Average life(4) | 7 years 3 months 18 days | 7 years 10 months 24 days
Weighted Average | Mortgage loans held for sale |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Market pricing | $ 0.791 | $ 0.811
Weighted Average | IRLCs |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Value of servicing (reflected as a percentage of loan commitment) | 0.016 | 0.019
Weighted Average | Excess spread financing |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Option adjusted spread(2) | 8.70% | 8.80%
Prepayment speed | 8.00% | 8.40%
Average life(4) | 6 years 8 months 12 days | 6 years 8 months 12 days
Weighted Average | Mortgage servicing rights financing |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Advance financing and counterparty fee rates | 8.30% | 7.60%
Annual advance recovery rates | 16.40% | 13.00%

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