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Loans and the Allowance for Loan and Lease Losses (Details) - Aging analysis - USD ($) $ in Thousands | Jun. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | $ 25,503 | $ 33,418
Current | 3,352,441 | 3,068,376
Total Loans Receivable | 3,377,944 | 3,101,794
Loans Receivable 90 Days or Greater Past Due and Accruing |  |
30 - 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,142 | 8,889
60 - 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 4,257 | 4,502
90 Days or Greater Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 20,104 | 20,027
Commercial Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 10,778 | 17,257
Current | 619,647 | 552,859
Total Loans Receivable | 630,425 | 570,116
Loans Receivable 90 Days or Greater Past Due and Accruing |  |
Commercial Portfolio Segment [Member] | 30 - 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 375 | 6,887
Commercial Portfolio Segment [Member] | 60 - 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,726 | 3,505
Commercial Portfolio Segment [Member] | 90 Days or Greater Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 8,677 | 6,865
Commercial Real Estate Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 11,206 | 12,547
Current | 2,060,563 | 1,954,149
Total Loans Receivable | 2,071,769 | 1,966,696
Loans Receivable 90 Days or Greater Past Due and Accruing |  |
Commercial Real Estate Portfolio Segment [Member] | 30 - 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 150 | 1,998
Commercial Real Estate Portfolio Segment [Member] | 60 - 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,729 | 988
Commercial Real Estate Portfolio Segment [Member] | 90 Days or Greater Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 9,327 | 9,561
Construction Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due |  | 1,479
Current | 443,277 | 327,359
Total Loans Receivable | 443,277 | 328,838
Loans Receivable 90 Days or Greater Past Due and Accruing |  |
Construction Loans [Member] | 30 - 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due |  |
Construction Loans [Member] | 60 - 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due |  |
Construction Loans [Member] | 90 Days or Greater Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due |  | 1,479
Residential Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 3,511 | 2,122
Current | 226,986 | 231,568
Total Loans Receivable | 230,497 | 233,690
Loans Receivable 90 Days or Greater Past Due and Accruing |  |
Residential Portfolio Segment [Member] | 30 - 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 609 |
Residential Portfolio Segment [Member] | 60 - 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 802 |
Residential Portfolio Segment [Member] | 90 Days or Greater Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 2,100 | 2,122
Consumer Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 8 | 13
Current | 1,968 | 2,441
Total Loans Receivable | 1,976 | 2,454
Loans Receivable 90 Days or Greater Past Due and Accruing |  |
Consumer Portfolio Segment [Member] | 30 - 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 8 | 4
Consumer Portfolio Segment [Member] | 60 - 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due |  | 9
Consumer Portfolio Segment [Member] | 90 Days or Greater Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due |  |

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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References No definition available. + Details
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