Fair Value, Quantitative Information about Level 3 Fair Value Measurements (Details) |
12 Months Ended | |
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Dec. 31, 2017 |
Dec. 31, 2016 |
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| Fair Value Inputs, Assets, Quantitative Information [Line Items] | ||
| Constant prepayment speed | 9.80% | 9.20% |
| Delinquency | 1.70% | 1.90% |
| Discount rate | 9.90% | 9.40% |
| Minimum [Member] | ||
| Fair Value Inputs, Assets, Quantitative Information [Line Items] | ||
| Constant prepayment speed | 8.20% | 8.00% |
| Delinquency | 1.30% | 1.80% |
| Discount rate | 8.30% | 8.40% |
| Maximum [Member] | ||
| Fair Value Inputs, Assets, Quantitative Information [Line Items] | ||
| Constant prepayment speed | 11.20% | 10.30% |
| Delinquency | 2.00% | 2.10% |
| Discount rate | 11.20% | 10.20% |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Rate at which loans or a loan portfolio are expected to prepay principal balances, used as an input to measure fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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