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Allowance for Loan and Lease Losses (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2013
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | $ 34,008 | $ 33,245 | $ 33,245
Provision charged to expense | 1,345 | 1,559 | 8,568
Losses charged off | 2,545 | 2,188 | 11,049
Recoveries | 807 | 777 | 3,244
Ending balance | 33,615 | 33,393 | 34,008
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 2,135 | 3,425 | 2,296
Collectively evaluated for impairment | 31,480 | 29,968 | 31,712
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 65,286 | 66,454 | 65,300
Collectively evaluated for impairment | 2,520,222 | 2,496,860 | 2,550,054
Commercial Construction [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 3,396 | 4,033 | 4,033
Provision charged to expense | (296) | (212) | 189
Losses charged off | 0 | 0 | 1,135
Recoveries | 7 | 6 | 309
Ending balance | 3,107 | 3,827 | 3,396
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 939 | 1,911 | 1,189
Collectively evaluated for impairment | 2,168 | 1,916 | 2,207
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 9,708 | 11,228 | 9,810
Collectively evaluated for impairment | 101,564 | 91,075 | 100,969
Commercial Secured by Real Estate [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 14,535 | 13,541 | 13,541
Provision charged to expense | (106) | 484 | 2,438
Losses charged off | 322 | 365 | 1,607
Recoveries | 76 | 22 | 163
Ending balance | 14,183 | 13,682 | 14,535
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 1,084 | 1,192 | 1,005
Collectively evaluated for impairment | 13,099 | 12,490 | 13,530
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 39,953 | 37,923 | 39,297
Collectively evaluated for impairment | 834,484 | 809,884 | 833,245
Equipment Lease Financing [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 121 | 126 | 126
Provision charged to expense | (14) | 2 | (5)
Losses charged off | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Ending balance | 107 | 128 | 121
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 107 | 128 | 121
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 8,122 | 9,944 | 8,840
Commercial Other [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 5,238 | 5,469 | 5,469
Provision charged to expense | (13) | (155) | 1,477
Losses charged off | 633 | 332 | 2,265
Recoveries | 162 | 169 | 557
Ending balance | 4,754 | 5,151 | 5,238
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 112 | 322 | 102
Collectively evaluated for impairment | 4,642 | 4,829 | 5,136
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 14,604 | 16,646 | 15,169
Collectively evaluated for impairment | 337,044 | 358,763 | 359,712
Real Estate Construction [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 397 | 376 | 376
Provision charged to expense | 44 | (4) | 106
Losses charged off | 0 | 0 | 89
Recoveries | 1 | 0 | 4
Ending balance | 442 | 372 | 397
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 442 | 372 | 397
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 59,730 | 51,978 | 56,075
Real Estate Mortgage [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 4,939 | 4,767 | 4,767
Provision charged to expense | 356 | 334 | 860
Losses charged off | 164 | 131 | 744
Recoveries | 12 | 10 | 56
Ending balance | 5,143 | 4,980 | 4,939
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 5,143 | 4,980 | 4,939
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 1,021 | 657 | 1,024
Collectively evaluated for impairment | 694,493 | 695,664 | 696,577
Home Equity [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 601 | 563 | 563
Provision charged to expense | 51 | 50 | 268
Losses charged off | 27 | 47 | 241
Recoveries | 1 | 5 | 11
Ending balance | 626 | 571 | 601
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 626 | 571 | 601
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 84,694 | 79,899 | 84,880
Consumer Direct [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 1,127 | 1,102 | 1,102
Provision charged to expense | 753 | 165 | 696
Losses charged off | 453 | 314 | 1,166
Recoveries | 146 | 145 | 495
Ending balance | 1,573 | 1,098 | 1,127
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 1,573 | 1,098 | 1,127
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 117,497 | 119,191 | 122,215
Consumer Indirect [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
Beginning balance | 3,654 | 3,268 | 3,268
Provision charged to expense | 570 | 895 | 2,539
Losses charged off | 946 | 999 | 3,802
Recoveries | 402 | 420 | 1,649
Ending balance | 3,680 | 3,584 | 3,654
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | 3,680 | 3,584 | 3,654
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 | 0
Collectively evaluated for impairment | $ 282,594 | $ 280,462 | $ 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=7512638&loc=SL6953423-111524 + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + 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 (g) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + 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 (g) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition Amount of direct write-downs of financing receivables charged against the allowance. + 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)(3) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + 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 (h) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition The sum of the periodic provision charged to earnings, based on an assessment of uncollectibility from the counterparty on account of loan, lease or other credit losses, to reduce these accounts to the amount that approximates their net realizable value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Paragraph 168, 169, 170 -IssueDate 2006-05-01 -Chapter 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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