Loans and Leases (Details 6)		12 Months Ended
		Dec. 31, 2015 USD ($) Contract		Dec. 31, 2014 USD ($) Contract		Dec. 31, 2013 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract		97	[1]	72	[2]	38	[3]
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 175,728,000	[1]	$ 41,030,000	[2]	$ 25,046,000	[3]
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 174,858,000	[1]	$ 34,457,000	[2]	$ 25,046,000	[3]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract	[4]	3	[1]	3	[2]	6	[3]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	[4]	$ 2,825,000	[1]	$ 1,589,000	[2]	$ 3,399,000	[3]
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down		$ 96,900		$ 129,000		$ 1,600,000
Mortgages [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts		21		14		11
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 43,536,000		$ 14,659,000		$ 15,391,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 43,012,000		$ 14,660,000		$ 15,391,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	[4]	2		1		2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	[4]	$ 2,670,000		$ 55,000		$ 1,844,000
Mortgages [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract		18		11		3
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 3,128,000		$ 4,794,000		$ 832,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 2,961,000		$ 4,794,000		$ 832,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	[4]	1		0		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	[4]	$ 155,000		$ 0		$ 0
Real Estate Construction [Member] | Commercial Real Estate Construction Loan Receivable [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract		8		4
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 23,881,000		$ 5,507,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 23,881,000		$ 4,965,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	[4]	0		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	[4]	$ 0		$ 0
Real Estate Construction [Member] | Residential Real Estate Construction Financing Receivable [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract						1
Financing Receivable, Modifications, Pre-Modification Recorded Investment						$ 390,000
Financing Receivable, Modifications, Post-Modification Recorded Investment						$ 390,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	[4]					0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	[4]					$ 0
Commercial Portfolio Segment [Member] | Cash Flow [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract		25		13		9
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 2,718,000		$ 2,717,000		$ 658,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 2,539,000		$ 2,717,000		$ 658,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract	[4]	0		1		2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	[4]	$ 0		$ 1,144,000		$ 66,000
Commercial Portfolio Segment [Member] | Asset Based [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract		13		22		12
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 8,400,000		$ 12,368,000		$ 7,650,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 8,400,000		$ 6,336,000		$ 7,650,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract	[4]	0		1		2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	[4]	$ 0		$ 390,000		$ 1,489,000
Commercial Portfolio Segment [Member] | Equipment Finance Commercial Financing Receivable [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract		10		1
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 93,868,000		$ 518,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 93,868,000		$ 518,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	[4]	0		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	[4]	$ 0		$ 0
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract		2		7		2
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 197,000		$ 467,000		$ 125,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 197,000		$ 467,000		$ 125,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract	[4]	0		0		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	[4]	$ 0		$ 0		$ 0

[1] Represents the balance at December 31, 2015, and is net of charge-offs of $96,900.

[2] Represents the balance at December 31, 2014, and is net of charge-offs of

[3] Represents the balance at December 31, 2013, and is net of charge-offs of $1.6 million.

[4] The population of defaulted restructured loans for the period indicated includes only those loans restructured during the preceding 12-month period. The table excludes defaulted troubled restructurings in those classes for which the recorded investment was zero at the end of the period.