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Loans and the Allowance for Loan and Lease Losses (Details) - Allowance for loan and lease losses - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | --- | --- | ---
Allowance for loan and lease losses |  |  |  |
Allowance for loan and lease losses, individually evaluated for impairment | $ 145 | $ 6,725 |  |
Allowance for loan and lease losses, collectively evaluated for impairment | 25,599 | 19,847 |  |
Allowance for loan and lease losses, acquired portfolio |  |  |  |
Allowance for loan and lease losses, acquired with deteriorated credit quality |  |  |  |
Allowance for loan and lease losses, total | 25,744 | 26,572 | $ 14,160 | $ 10,333
Gross loans |  |  |  |
Loans Receivable, individually evaluated for impairment | 30,991 | 107,104 |  |
Loans Receivable, collectively evaluated for impairment | 2,783,922 | 2,118,631 |  |
Loans Receivable, acquired portfolio | 656,448 | 866,878 |  |
Loans Receivables, acquired with deteriorated credit quality | 8,080 | 9,181 |  |
Loans Receivable, Total | 3,479,441 | 3,101,794 |  |
Commercial Portfolio Segment [Member] |  |  |  |
Allowance for loan and lease losses |  |  |  |
Allowance for loan and lease losses, individually evaluated for impairment |  | 6,725 |  |
Allowance for loan and lease losses, collectively evaluated for impairment | 6,632 | 4,224 |  |
Allowance for loan and lease losses, acquired portfolio |  |  |  |
Allowance for loan and lease losses, acquired with deteriorated credit quality |  |  |  |
Allowance for loan and lease losses, total | 6,632 | 10,949 | 3,083 | 1,698
Gross loans |  |  |  |
Loans Receivable, individually evaluated for impairment | 3,637 | 85,397 |  |
Loans Receivable, collectively evaluated for impairment | 517,869 | 395,424 |  |
Loans Receivable, acquired portfolio | 24,972 | 82,217 |  |
Loans Receivables, acquired with deteriorated credit quality | 7,098 | 7,078 |  |
Loans Receivable, Total | 553,576 | 570,116 |  |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Allowance for loan and lease losses |  |  |  |
Allowance for loan and lease losses, individually evaluated for impairment | 145 |  |  |
Allowance for loan and lease losses, collectively evaluated for impairment | 12,438 | 10,926 |  |
Allowance for loan and lease losses, acquired portfolio |  |  |  |
Allowance for loan and lease losses, acquired with deteriorated credit quality |  |  |  |
Allowance for loan and lease losses, total | 12,583 | 10,926 | 7,799 | 5,746
Gross loans |  |  |  |
Loans Receivable, individually evaluated for impairment | 19,532 | 15,517 |  |
Loans Receivable, collectively evaluated for impairment | 1,621,745 | 1,269,140 |  |
Loans Receivable, acquired portfolio | 562,451 | 680,264 |  |
Loans Receivables, acquired with deteriorated credit quality | 982 | 1,775 |  |
Loans Receivable, Total | 2,204,710 | 1,966,696 |  |
Construction Loans [Member] |  |  |  |
Allowance for loan and lease losses |  |  |  |
Allowance for loan and lease losses, individually evaluated for impairment |  |  |  |
Allowance for loan and lease losses, collectively evaluated for impairment | 4,789 | 3,253 |  |
Allowance for loan and lease losses, acquired portfolio |  |  |  |
Allowance for loan and lease losses, acquired with deteriorated credit quality |  |  |  |
Allowance for loan and lease losses, total | 4,789 | 3,253 | 1,239 | 362
Gross loans |  |  |  |
Loans Receivable, individually evaluated for impairment | 5,909 | 2,149 |  |
Loans Receivable, collectively evaluated for impairment | 478,865 | 315,785 |  |
Loans Receivable, acquired portfolio | 1,454 | 10,904 |  |
Loans Receivables, acquired with deteriorated credit quality |  |  |  |
Loans Receivable, Total | 486,228 | 328,838 |  |
Residential Portfolio Segment [Member] |  |  |  |
Allowance for loan and lease losses |  |  |  |
Allowance for loan and lease losses, individually evaluated for impairment |  |  |  |
Allowance for loan and lease losses, collectively evaluated for impairment | 958 | 976 |  |
Allowance for loan and lease losses, acquired portfolio |  |  |  |
Allowance for loan and lease losses, acquired with deteriorated credit quality |  |  |  |
Allowance for loan and lease losses, total | 958 | 976 | 1,113 | 990
Gross loans |  |  |  |
Loans Receivable, individually evaluated for impairment | 1,857 | 3,954 |  |
Loans Receivable, collectively evaluated for impairment | 163,686 | 136,633 |  |
Loans Receivable, acquired portfolio | 67,010 | 92,775 |  |
Loans Receivables, acquired with deteriorated credit quality |  | 328 |  |
Loans Receivable, Total | 232,547 | 233,690 |  |
Consumer Portfolio Segment [Member] |  |  |  |
Allowance for loan and lease losses |  |  |  |
Allowance for loan and lease losses, individually evaluated for impairment |  |  |  |
Allowance for loan and lease losses, collectively evaluated for impairment | 3 | 4 |  |
Allowance for loan and lease losses, acquired portfolio |  |  |  |
Allowance for loan and lease losses, acquired with deteriorated credit quality |  |  |  |
Allowance for loan and lease losses, total | 3 | 4 | 7 | 146
Gross loans |  |  |  |
Loans Receivable, individually evaluated for impairment | 62 | 87 |  |
Loans Receivable, collectively evaluated for impairment | 1,757 | 1,649 |  |
Loans Receivable, acquired portfolio | 561 | 718 |  |
Loans Receivables, acquired with deteriorated credit quality |  |  |  |
Loans Receivable, Total | 2,380 | 2,454 |  |
Unallocated Financing Receivables [Member] |  |  |  |
Allowance for loan and lease losses |  |  |  |
Allowance for loan and lease losses, individually evaluated for impairment |  |  |  |
Allowance for loan and lease losses, collectively evaluated for impairment | 779 | 464 |  |
Allowance for loan and lease losses, acquired portfolio |  |  |  |
Allowance for loan and lease losses, acquired with deteriorated credit quality |  |  |  |
Allowance for loan and lease losses, total | $ 799 | $ 464 | $ 919 | $ 1,391

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