Fair Value Measurements - Level 3, Inputs, Recurring (Details) - Level 3 - Recurring - Discounted cash flow	9 Months Ended
Sep. 30, 2018
Loans Held for Sale \| Weighted average
Significant unobservable inputs used in the fair value measurements
Projected price (as a percent)	95.00%
Loans Held for Sale \| Minimum
Significant unobservable inputs used in the fair value measurements
Projected price (as a percent)	92.00%
Loans Held for Sale \| Maximum
Significant unobservable inputs used in the fair value measurements
Projected price (as a percent)	96.00%
MSR \| Weighted average
Significant unobservable inputs used in the fair value measurements
Constant prepayment rate (as a percent)	9.15%
Discount rates (as a percent)	11.11%

Percentage of the projected price for a financial instrument as an input to measure fair value.

No definition available.

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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.

+ References

No definition available.

+ Details

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

+ Details

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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.

+ References

+ Details

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