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v3.25.3

Fair Value - Schedule of Significant Assumptions used in Valuation (Details) | Sep. 30, 2025 year USD ($) | Dec. 31, 2024 year USD ($)
--- | --- | ---
Discount rate |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.099 | 0.100
Loans Held for Investment Reverse Mortgages | Discount rate |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.048 | 0.054
Loans Held for Investment Reverse Mortgages | Minimum | Life in years |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.6 | 0.4
Loans Held for Investment Reverse Mortgages | Minimum | Weighted average prepayment speed |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.131 | 0.131
Loans Held for Investment Reverse Mortgages | Maximum | Life in years |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 7.8 | 7.6
Loans Held for Investment Reverse Mortgages | Maximum | Weighted average prepayment speed |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.362 | 0.316
Loans Held for Investment Reverse Mortgages | Weighted Average | Life in years |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 4.7 | 4.2
Loans Held for Investment Reverse Mortgages | Weighted Average | Weighted average prepayment speed |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.192 | 0.213
Fair Value Agency Mortgage Servicing Rights | Weighted average prepayment speed |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.070 | 0.064
Fair Value Agency Mortgage Servicing Rights | Discount rate |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.094 | 0.100
Fair Value Agency Mortgage Servicing Rights | Weighted average delinquency rate |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.012 | 0.012
Fair Value Agency Mortgage Servicing Rights | Weighted average cost to service (in dollars) |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | $ | 71 | 71
Fair Value Non-Agency Mortgage Servicing Rights | Weighted average prepayment speed |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.077 | 0.078
Fair Value Non-Agency Mortgage Servicing Rights | Discount rate |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.109 | 0.109
Fair Value Non-Agency Mortgage Servicing Rights | Weighted average delinquency rate |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.108 | 0.104
Fair Value Non-Agency Mortgage Servicing Rights | Weighted average cost to service (in dollars) |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | $ | 195 | 193
HMBS - Related Borrowings | Discount rate |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.047 | 0.053
HMBS - Related Borrowings | Minimum | Life in years |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.6 | 0.4
HMBS - Related Borrowings | Minimum | Weighted average prepayment speed |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.131 | 0.131
HMBS - Related Borrowings | Maximum | Life in years |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 7.8 | 7.6
HMBS - Related Borrowings | Maximum | Weighted average prepayment speed |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.362 | 0.316
HMBS - Related Borrowings | Weighted Average | Life in years |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 4.7 | 4.2
HMBS - Related Borrowings | Weighted Average | Weighted average prepayment speed |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.192 | 0.213
Mortgage Servicing Rights Pledged | Life in years |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 4.8 | 4.7
Mortgage Servicing Rights Pledged | Weighted average prepayment speed |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.055 | 0.054
Mortgage Servicing Rights Pledged | Discount rate |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.097 | 0.103
Mortgage Servicing Rights Pledged | Weighted average delinquency rate |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | 0.030 | 0.030
Mortgage Servicing Rights Pledged | Weighted average cost to service (in dollars) |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Measurement input | $ | 131 | 133

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