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Fair Market Value of Financial Assets and Liabilities, Quantitative Information about Level 3 Fair Value Measurements (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2017 | Dec. 31, 2016
Mortgage Servicing Rights [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member] |  |
Unobservable inputs [Abstract] |  |
Constant prepayment rate | 7.00% | 7.00%
Probability of default | 0.00% | 0.00%
Discount rate | 10.00% | 10.00%
Mortgage Servicing Rights [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member] |  |
Unobservable inputs [Abstract] |  |
Constant prepayment rate | 29.50% | 27.00%
Probability of default | 100.00% | 100.00%
Discount rate | 11.50% | 11.50%
Mortgage Servicing Rights [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member] |  |
Unobservable inputs [Abstract] |  |
Constant prepayment rate | 10.60% | 9.50%
Probability of default | 3.30% | 3.00%
Discount rate | 10.10% | 10.10%
Mortgage Servicing Rights [Member] | Discount Cash Flows, Computer Pricing Model [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Fair value | $ 3,283 | $ 3,433
Impaired Loans (Collateral Dependent) [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member] |  |
Unobservable inputs [Abstract] |  |
Marketability discount | 10.00% | 0.00%
Impaired Loans (Collateral Dependent) [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member] |  |
Unobservable inputs [Abstract] |  |
Marketability discount | 89.00% | 100.00%
Impaired Loans (Collateral Dependent) [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member] |  |
Unobservable inputs [Abstract] |  |
Marketability discount | 40.40% | 33.70%
Impaired Loans (Collateral Dependent) [Member] | Market Comparable Properties [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Fair value | $ 1,732 | $ 5,506
Other Real Estate/Assets Owned [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member] |  |
Unobservable inputs [Abstract] |  |
Comparability adjustments | 6.00% | 10.00%
Other Real Estate/Assets Owned [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member] |  |
Unobservable inputs [Abstract] |  |
Comparability adjustments | 68.70% | 100.00%
Other Real Estate/Assets Owned [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member] |  |
Unobservable inputs [Abstract] |  |
Comparability adjustments | 16.30% | 14.90%
Other Real Estate/Assets Owned [Member] | Market Comparable Properties [Member] |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Fair value | $ 18,843 | $ 4,388

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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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 Percentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value. + 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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