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Fair Value Measurements - Summary of Quantitative Information About Non-recurring Level 3 Fair Value Measurements (Details) - Other Real Estate Owned - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2017 | Dec. 31, 2016
Fair Value Inputs Assets Quantitative Information [Line Items] |  |
Fair Value Amount | $ 293 | $ 833
Level 3 |  |
Fair Value Inputs Assets Quantitative Information [Line Items] |  |
Fair Value Amount | 293 | 833
Level 3 | Third Party Appraisals |  |
Fair Value Inputs Assets Quantitative Information [Line Items] |  |
Fair Value Amount | $ 293 | $ 833
Fair Value Adjustment | 15.00% |
Level 3 | Third Party Appraisals | Minimum |  |
Fair Value Inputs Assets Quantitative Information [Line Items] |  |
Fair Value Adjustment |  | 10.00%
Level 3 | Third Party Appraisals | Maximum |  |
Fair Value Inputs Assets Quantitative Information [Line Items] |  |
Fair Value Adjustment |  | 15.00%
Level 3 | Third Party Appraisals | Weighted Average |  |
Fair Value Inputs Assets Quantitative Information [Line Items] |  |
Fair Value Adjustment | 15.00% | 12.00%

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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + 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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