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Non Purchased Loans - Impact of Modifications Classified as Restructured Loans (Details) - Non purchased loans and leases $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 USD ($) loan | Sep. 30, 2016 USD ($) loan | Sep. 30, 2017 USD ($) loan | Sep. 30, 2016 USD ($) loan
Restructured loans |  |  |  |
Number of Loans | loan | 5 | 3 | 13 | 12
Pre- Modification Outstanding Recorded Investment | $ 537 | $ 704 | $ 1,298 | $ 2,238
Post- Modification Outstanding Recorded Investment | $ 482 | $ 657 | $ 922 | $ 2,131
Real estate – 1-4 family mortgage |  |  |  |
Restructured loans |  |  |  |
Number of Loans | loan | 4 | 2 | 9 | 10
Pre- Modification Outstanding Recorded Investment | $ 307 | $ 194 | $ 611 | $ 1,199
Post- Modification Outstanding Recorded Investment | $ 307 | $ 147 | $ 601 | $ 1,096
Real estate – commercial mortgage |  |  |  |
Restructured loans |  |  |  |
Number of Loans | loan | 1 |  | 3 | 1
Pre- Modification Outstanding Recorded Investment | $ 230 |  | $ 683 | $ 529
Post- Modification Outstanding Recorded Investment | $ 175 |  | $ 318 | $ 525
Installment loans to individuals |  |  |  |
Restructured loans |  |  |  |
Number of Loans | loan | 0 |  | 1 |
Pre- Modification Outstanding Recorded Investment | $ 0 |  | $ 4 |
Post- Modification Outstanding Recorded Investment | $ 0 |  | $ 3 |
Real estate – construction |  |  |  |
Restructured loans |  |  |  |
Number of Loans | loan |  | 1 |  | 1
Pre- Modification Outstanding Recorded Investment |  | $ 510 |  | $ 510
Post- Modification Outstanding Recorded Investment |  | $ 510 |  | $ 510

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- Definition Troubled Debt Restructuring Financing Receivable Modifications [Abstract] + References No definition available. + Details
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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524 + Details
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- Definition Post-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524 + Details
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