Allowance for Loan and Lease Losses (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 32,004
Provision (credit)	855	$ 209
Ending Balance	32,530
Originated Loans and Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	31,312	28,156
Charge-offs	(561)	(376)
Recoveries	358	570
Provision (credit)	872	340
Ending Balance	31,981	28,690
Originated Loans and Leases [Member] \| Commercial and industrial, total [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	10,495	9,157
Charge-offs	(115)	(2)
Recoveries	18	147
Provision (credit)	(1,107)	528
Ending Balance	9,291	9,830
Originated Loans and Leases [Member] \| Commercial real estate, total [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	15,479	12,069
Charge-offs	0	(14)
Recoveries	211	208
Provision (credit)	1,418	75
Ending Balance	17,108	12,338
Originated Loans and Leases [Member] \| Residential real estate, total [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	4,070	5,030
Charge-offs	(200)	(93)
Recoveries	17	47
Provision (credit)	388	(319)
Ending Balance	4,275	4,665
Originated Loans and Leases [Member] \| Consumer and other, total [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,268	1,900
Charge-offs	(246)	(267)
Recoveries	112	168
Provision (credit)	173	56
Ending Balance	1,307	1,857
Originated Loans and Leases [Member] \| Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	0	0
Charge-offs	0	0
Recoveries	0	0
Provision (credit)		0
Ending Balance	0	0
Acquired Loans and Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	692	841
Charge-offs	(172)	(31)
Recoveries	46	116
Provision (credit)	(17)	(131)
Ending Balance	549	795
Acquired Loans and Leases [Member] \| Commercial and industrial, total [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	433	431
Charge-offs	(63)	(1)
Recoveries	0	7
Provision (credit)	63	126
Ending Balance	433	563
Acquired Loans and Leases [Member] \| Commercial real estate, total [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	61	337
Charge-offs	0	0
Recoveries	46	107
Provision (credit)	(74)	(278)
Ending Balance	33	166
Acquired Loans and Leases [Member] \| Residential real estate, total [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	198	51
Charge-offs	(16)	(30)
Recoveries	0	2
Provision (credit)	(123)	20
Ending Balance	59	43
Acquired Loans and Leases [Member] \| Consumer and other, total [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	0	22
Charge-offs	(93)	0
Recoveries	0	0
Provision (credit)	117	1
Ending Balance	24	23
Acquired Loans and Leases [Member] \| Leases [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	0	0
Charge-offs	0	0
Recoveries	0	0
Provision (credit)	0	0
Ending Balance	$ 0	$ 0

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

+ References

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ 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=66008989&loc=SL6953423-111524

Reference 2: 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=66008989&loc=SL6953423-111524

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L.1)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

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- Definition

Amount of expense related to estimated loss from loan and lease transactions.

+ References

Reference 1: 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

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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 3: 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=66008989&loc=SL6953423-111524

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