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Loans and Allowance for Loan Losses - Amount of Loans by Loan Category Broken Out Between Loans Individually Evaluated for Impairment and Collectively Evaluated for Impairment (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Accounts Notes And Loans Receivable [Line Items] |  |
Individually evaluated for impairment | $ 9,214 | $ 12,951
Collectively evaluated for impairment | 1,946,027 | 1,819,775
Acquired with deteriorated credit quality | 15,733 | 16,058
Gross loans | 1,970,974 | 1,848,784
Commercial and Industrial |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Individually evaluated for impairment | 1,222 | 1,476
Collectively evaluated for impairment | 422,242 | 384,279
Acquired with deteriorated credit quality | 240 | 478
Gross loans | 423,704 | 386,233
Construction |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Individually evaluated for impairment | 299 | 2,686
Collectively evaluated for impairment | 278,077 | 238,900
Acquired with deteriorated credit quality | 4,351 | 4,319
Gross loans | 282,727 | 245,905
Residential Real Estate | 1-to-4 Family Mortgage |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Individually evaluated for impairment | 2,191 | 2,471
Collectively evaluated for impairment | 302,961 | 290,346
Acquired with deteriorated credit quality | 2,000 | 2,107
Gross loans | 307,152 | 294,924
Residential Real Estate | Residential Line of Credit |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Individually evaluated for impairment |  | 311
Collectively evaluated for impairment | 177,783 | 176,879
Gross loans | 177,783 | 177,190
Residential Real Estate | Multi-Family Mortgage |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Individually evaluated for impairment | 1,001 | 1,027
Collectively evaluated for impairment | 51,785 | 43,922
Acquired with deteriorated credit quality | 24 | 28
Gross loans | 52,810 | 44,977
Commercial Real Estate | Owner Occupied |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Individually evaluated for impairment | 2,374 | 2,752
Collectively evaluated for impairment | 365,087 | 350,812
Acquired with deteriorated credit quality | 4,001 | 3,782
Gross loans | 371,462 | 357,346
Commercial Real Estate | Non-Owner Occupied |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Individually evaluated for impairment | 2,103 | 2,201
Collectively evaluated for impairment | 266,068 | 260,361
Acquired with deteriorated credit quality | 5,114 | 5,340
Gross loans | 273,285 | 267,902
Consumer and Other |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Individually evaluated for impairment | 24 | 27
Collectively evaluated for impairment | 82,024 | 74,276
Acquired with deteriorated credit quality | 3 | 4
Gross loans | $ 82,051 | $ 74,307

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- Definition Fair value at acquisition of acquired loans accounted for as debt securities with evidence of deterioration of credit quality. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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