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Loans Supplemental Loan Information (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2018 | Dec. 31, 2017 | Mar. 31, 2017
Loans and Leases Receivable, Other Information [Abstract] |  |  |
Loans Held-for-sale | $ 171 | $ 327 | $ 896
Credit Card Receivable | Consumer Portfolio Segment | Minimum |  |  |
Schedule of Financing Receivable Terms [Line Items] |  |  |
Principal Repayment Terms, Period | 1 year |  |
Credit Card Receivable | Consumer Portfolio Segment | Maximum |  |  |
Schedule of Financing Receivable Terms [Line Items] |  |  |
Principal Repayment Terms, Period | 5 years |  |
Automobile Loan | Consumer Portfolio Segment | Minimum |  |  |
Schedule of Financing Receivable Terms [Line Items] |  |  |
Principal Repayment Terms, Period | 3 years |  |
Automobile Loan | Consumer Portfolio Segment | Maximum |  |  |
Schedule of Financing Receivable Terms [Line Items] |  |  |
Principal Repayment Terms, Period | 7 years |  |

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- Definition Amount, after allowance for bad debt, of mortgage loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 + Details
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