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v3.19.3

Fair Value - Schedule of Significant Assumptions used in Valuation (Details) - $ / loan | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2018
Loans Held for Investment [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Life | 6 years 3 months 18 days | 5 years 10 months 24 days
Fair value measurement valuation assumptions | 2.60% | 3.40%
Loans Held for Investment [Member] | Measurement Input, Prepayment Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 13.60% | 14.70%
Loans Held for Investment [Member] | Minimum [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Life | 2 years 2 months 12 days | 3 years
Loans Held for Investment [Member] | Minimum [Member] | Measurement Input, Prepayment Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 6.90% | 6.80%
Loans Held for Investment [Member] | Maximum [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Life | 8 years 1 month 6 days | 7 years 7 months 6 days
Loans Held for Investment [Member] | Maximum [Member] | Measurement Input, Prepayment Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 29.30% | 38.40%
Fair Value Agency Mortgage Servicing Rights [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Advance financing cost | 5 years | 5 years
Interest rate for computing float earnings | 5 years | 5 years
Weighted average cost to service (in dollars) | 84.49 | 90
Fair Value Agency Mortgage Servicing Rights [Member] | Measurement Input, Prepayment Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 13.40% | 8.50%
Fair Value Agency Mortgage Servicing Rights [Member] | Measurement Input, Default Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 3.40% | 6.60%
Fair Value Agency Mortgage Servicing Rights [Member] | Measurement Input, Discount Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 9.30% | 9.10%
Fair Value Non-Agency Mortgage Servicing Rights [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value inputs financing costs float earnings, basis spread | 0.50% | 0.50%
Fair value input, interest rate | 2.00% | 2.75%
Weighted average cost to service (in dollars) | 276.62 | 297
Fair Value Non-Agency Mortgage Servicing Rights [Member] | Measurement Input, Prepayment Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 12.20% | 15.40%
Fair Value Non-Agency Mortgage Servicing Rights [Member] | Measurement Input, Default Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 26.30% | 27.10%
Fair Value Non-Agency Mortgage Servicing Rights [Member] | Measurement Input, Discount Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 11.30% | 12.80%
HMBS - Related Borrowings [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Life | 6 years 3 months 18 days | 5 years 10 months 24 days
HMBS - Related Borrowings [Member] | Measurement Input, Prepayment Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 13.60% | 14.70%
HMBS - Related Borrowings [Member] | Measurement Input, Discount Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 2.50% | 3.30%
HMBS - Related Borrowings [Member] | Minimum [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Life | 2 years 2 months 12 days | 3 years
HMBS - Related Borrowings [Member] | Minimum [Member] | Measurement Input, Prepayment Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 6.90% | 6.80%
HMBS - Related Borrowings [Member] | Maximum [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Life | 8 years 1 month 6 days | 7 years 7 months 6 days
HMBS - Related Borrowings [Member] | Maximum [Member] | Measurement Input, Prepayment Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 29.30% | 38.40%
Mortgage Servicing Rights Pledged [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value inputs financing costs float earnings, basis spread | 0.50% | 0.50%
Fair value input, interest rate | 2.00% | 2.75%
Weighted average cost to service (in dollars) | 221.65 | 234
Mortgage Servicing Rights Pledged [Member] | Measurement Input, Prepayment Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 12.60% | 13.90%
Mortgage Servicing Rights Pledged [Member] | Measurement Input, Default Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 20.60% | 20.30%
Mortgage Servicing Rights Pledged [Member] | Measurement Input, Discount Rate [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Fair value measurement valuation assumptions | 10.60% | 12.00%
London Interbank Offered Rate (LIBOR) [Member] | Fair Value Non-Agency Mortgage Servicing Rights [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Interest rate for computing float earnings | 5 years | 5 years
London Interbank Offered Rate (LIBOR) [Member] | Mortgage Servicing Rights Pledged [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |
Interest rate for computing float earnings | 5 years | 5 years

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