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Loans and Allowance for Credit Losses (Troubled Debt Restructurings With Subsequent Default) (Details) $ in Thousands | 9 Months Ended
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Sep. 30, 2016 USD ($) contract | Sep. 30, 2015 USD ($) contract
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Number of contracts | contract | 3 | 2
Recorded investment | $ | $ 616 | $ 279
Commercial Real Estate Portfolio Segment [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Number of contracts | contract | 2 | 2
Recorded investment | $ | $ 375 | $ 279
Construction Loans [Member] | Commercial and Residential Real Estate Portfolio Segment [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Number of contracts | contract | 1 |
Recorded investment | $ | $ 241 |

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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953682-111524 + Details
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- Definition Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953682-111524 + Details
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