Allowance for Loan and Lease Losses (Details 8) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Total	$ 4,261,979	$ 3,774,832
Residential Home Equity
Total	247,014	244,670
Residential Mortgages
Total	972,801	851,332
Consumer Indirect
Total	14,835	17,829
Consumer Other
Total	45,219	41,815
Originated Loans and Leases
Loans and Leases, gross	1,215,883	1,085,152
Nonperforming	14,300	13,506
Total	3,867,868	3,313,558
Originated Loans and Leases \| Residential Home Equity
Loans and Leases, gross		202,578
Nonperforming		1,873
Total	209,277	202,578
Originated Loans and Leases \| Residential Mortgages
Loans and Leases, gross		823,841
Nonperforming		5,889
Total	947,378	823,841
Originated Loans and Leases \| Consumer Indirect
Loans and Leases, gross		17,829
Nonperforming		107
Total	14,835	17,829
Originated Loans and Leases \| Consumer Other
Loans and Leases, gross		40,904
Nonperforming		75
Total	44,393	40,904
Originated Loans and Leases \| Performing
Loans and Leases, gross	1,208,259	1,077,150
Originated Loans and Leases \| Performing \| Residential Home Equity
Loans and Leases, gross	207,261	200,647
Originated Loans and Leases \| Performing \| Residential Mortgages
Loans and Leases, gross	941,936	817,952
Originated Loans and Leases \| Performing \| Consumer Indirect
Loans and Leases, gross	14,669	17,722
Originated Loans and Leases \| Performing \| Consumer Other
Loans and Leases, gross	44,393	40,829
Originated Loans and Leases \| Nonperforming
Loans and Leases, gross	7,624	8,002
Originated Loans and Leases \| Nonperforming \| Residential Home Equity
Loans and Leases, gross		1,931
Nonperforming	2,016
Originated Loans and Leases \| Nonperforming \| Residential Mortgages
Loans and Leases, gross		5,889
Nonperforming	5,442
Originated Loans and Leases \| Nonperforming \| Consumer Indirect
Loans and Leases, gross		107
Nonperforming	166
Originated Loans and Leases \| Nonperforming \| Consumer Other
Loans and Leases, gross		75
Nonperforming	0
Acquired Loans and Leases
Loans and Leases, gross	63,986	70,494
Nonperforming	4,741	4,331
Total	394,111	461,274
Acquired Loans and Leases \| Residential Home Equity
Loans and Leases, gross		42,092
Nonperforming		712
Total	37,737	42,092
Acquired Loans and Leases \| Residential Mortgages
Loans and Leases, gross		27,491
Nonperforming		1,389
Total	25,423	27,491
Acquired Loans and Leases \| Consumer Indirect
Loans and Leases, gross	0	0
Total	0	0
Acquired Loans and Leases \| Consumer Other
Loans and Leases, gross		911
Nonperforming		0
Total	826	911
Acquired Loans and Leases \| Performing
Loans and Leases, gross	62,383	68,393
Acquired Loans and Leases \| Performing \| Residential Home Equity
Loans and Leases, gross	37,074	41,380
Acquired Loans and Leases \| Performing \| Residential Mortgages
Loans and Leases, gross	24,483	26,102
Acquired Loans and Leases \| Performing \| Consumer Indirect
Loans and Leases, gross	0	0
Acquired Loans and Leases \| Performing \| Consumer Other
Loans and Leases, gross	826	911
Acquired Loans and Leases \| Nonperforming
Loans and Leases, gross	1,603	2,101
Acquired Loans and Leases \| Nonperforming \| Residential Home Equity
Loans and Leases, gross		712
Nonperforming	663
Acquired Loans and Leases \| Nonperforming \| Residential Mortgages
Loans and Leases, gross		1,389
Nonperforming	940
Acquired Loans and Leases \| Nonperforming \| Consumer Indirect
Loans and Leases, gross	0	0
Acquired Loans and Leases \| Nonperforming \| Consumer Other
Loans and Leases, gross		$ 0
Nonperforming	$ 0

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.

No definition available.

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5111-111524

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

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