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Allowance for Loan and Lease Losses (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | $ 34,447 | $ 34,008 | $ 33,245
Provision charged to expense | 8,650 | 8,755 | 8,568
Losses charged off | 9,870 | 11,436 | 11,049
Recoveries | 2,867 | 3,120 | 3,244
Ending balance | 36,094 | 34,447 | 34,008
Allowance for loan losses ending balance [Abstract] |  |  |
Individually evaluated for impairment | 2,461 | 1,742 | 2,296
Collectively evaluated for impairment | 33,633 | 32,705 | 31,712
Loans ending balance [Abstract] |  |  |
Individually evaluated for impairment | 49,888 | 59,068 | 65,300
Collectively evaluated for impairment | 2,824,073 | 2,674,756 | 2,550,054
Commercial [Member] | Construction [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 2,896 | 3,396 | 4,033
Provision charged to expense | (707) | (513) | 189
Losses charged off | 3 | 15 | 1,135
Recoveries | 13 | 28 | 309
Ending balance | 2,199 | 2,896 | 3,396
Allowance for loan losses ending balance [Abstract] |  |  |
Individually evaluated for impairment | 831 | 734 | 1,189
Collectively evaluated for impairment | 1,368 | 2,162 | 2,207
Loans ending balance [Abstract] |  |  |
Individually evaluated for impairment | 6,263 | 9,627 | 9,810
Collectively evaluated for impairment | 71,757 | 112,315 | 100,969
Commercial [Member] | Real Estate [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 13,618 | 14,535 | 13,541
Provision charged to expense | 2,135 | 941 | 2,438
Losses charged off | 1,379 | 2,163 | 1,607
Recoveries | 60 | 305 | 163
Ending balance | 14,434 | 13,618 | 14,535
Allowance for loan losses ending balance [Abstract] |  |  |
Individually evaluated for impairment | 1,227 | 827 | 1,005
Collectively evaluated for impairment | 13,207 | 12,791 | 13,530
Loans ending balance [Abstract] |  |  |
Individually evaluated for impairment | 33,421 | 34,357 | 39,297
Collectively evaluated for impairment | 1,019,498 | 914,269 | 833,245
Commercial [Member] | Equipment Lease Financing [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 119 | 121 | 126
Provision charged to expense | (40) | (2) | (5)
Losses charged off | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Ending balance | 79 | 119 | 121
Allowance for loan losses ending balance [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 79 | 119 | 121
Loans ending balance [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 8,514 | 10,344 | 8,840
Commercial [Member] | Other [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 4,263 | 5,238 | 5,469
Provision charged to expense | 1,338 | 1,545 | 1,477
Losses charged off | 1,961 | 3,141 | 2,265
Recoveries | 585 | 621 | 557
Ending balance | 4,225 | 4,263 | 5,238
Allowance for loan losses ending balance [Abstract] |  |  |
Individually evaluated for impairment | 403 | 181 | 102
Collectively evaluated for impairment | 3,822 | 4,082 | 5,136
Loans ending balance [Abstract] |  |  |
Individually evaluated for impairment | 8,460 | 13,807 | 15,169
Collectively evaluated for impairment | 350,438 | 338,241 | 359,712
Residential [Member] | Construction [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 534 | 397 | 376
Provision charged to expense | 147 | 258 | 106
Losses charged off | 135 | 123 | 89
Recoveries | 4 | 2 | 4
Ending balance | 550 | 534 | 397
Allowance for loan losses ending balance [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 550 | 534 | 397
Loans ending balance [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 61,750 | 62,412 | 56,075
Residential [Member] | Real Estate [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 6,094 | 4,939 | 4,767
Provision charged to expense | 1,888 | 2,173 | 860
Losses charged off | 1,421 | 1,058 | 744
Recoveries | 117 | 40 | 56
Ending balance | 6,678 | 6,094 | 4,939
Allowance for loan losses ending balance [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 6,678 | 6,094 | 4,939
Loans ending balance [Abstract] |  |  |
Individually evaluated for impairment | 1,744 | 1,277 | 1,024
Collectively evaluated for impairment | 706,130 | 711,188 | 696,577
Residential [Member] | Home Equity [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 756 | 601 | 563
Provision charged to expense | 158 | 265 | 268
Losses charged off | 129 | 115 | 241
Recoveries | 54 | 5 | 11
Ending balance | 839 | 756 | 601
Allowance for loan losses ending balance [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 839 | 756 | 601
Loans ending balance [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 89,450 | 88,335 | 84,880
Consumer [Member] | Consumer Direct [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 1,574 | 1,127 | 1,102
Provision charged to expense | 891 | 1,207 | 696
Losses charged off | 1,306 | 1,326 | 1,166
Recoveries | 435 | 566 | 495
Ending balance | 1,594 | 1,574 | 1,127
Allowance for loan losses ending balance [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 1,594 | 1,574 | 1,127
Loans ending balance [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 126,406 | 122,136 | 122,215
Consumer [Member] | Consumer Indirect [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 4,593 | 3,654 | 3,268
Provision charged to expense | 2,840 | 2,881 | 2,539
Losses charged off | 3,536 | 3,495 | 3,802
Recoveries | 1,599 | 1,553 | 1,649
Ending balance | 5,496 | 4,593 | 3,654
Allowance for loan losses ending balance [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 5,496 | 4,593 | 3,654
Loans ending balance [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | $ 390,130 | $ 315,516 | $ 287,541

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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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