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Loans and Allowance for Loan Losses - Purchased Credit Impaired (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Acquired with deteriorated credit quality | $ 15,733 | $ 16,058
Commercial and Industrial |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Acquired with deteriorated credit quality | 240 | 478
Construction |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Acquired with deteriorated credit quality | 4,351 | 4,319
Residential Real Estate | 1-to-4 Family Mortgage |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Acquired with deteriorated credit quality | 2,000 | 2,107
Residential Real Estate | Multi-Family Mortgage |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Acquired with deteriorated credit quality | 24 | 28
Commercial Real Estate | Owner Occupied |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Acquired with deteriorated credit quality | 4,001 | 3,782
Commercial Real Estate | Non-Owner Occupied |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Acquired with deteriorated credit quality | 5,114 | 5,340
Consumer and Other |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Acquired with deteriorated credit quality | $ 3 | $ 4

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