Loans and Leases (Details 6)		3 Months Ended				6 Months Ended
		Jun. 30, 2016 USD ($) Contract		Jun. 30, 2015 USD ($) Contract		Jun. 30, 2016 USD ($) Contract		Jun. 30, 2015 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract		20		27		34		57
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 40,044,000		$ 62,106,000		$ 46,955,000		$ 77,174,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 37,712,000		$ 62,080,000		$ 44,623,000		$ 76,781,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract		3		7		3		7
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 42,484,000	[1],[2]	$ 3,260,000	[2],[3]	$ 42,484,000	[4],[5]	$ 3,260,000	[5],[6]
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down		$ 0		$ 0		$ 0		$ 0
Mortgage Loans on Real Estate | Commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts		1		3		5		12
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 1,000,000		$ 1,345,000		$ 4,140,000		$ 6,506,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 1,000,000		$ 1,345,000		$ 4,140,000		$ 6,458,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		2		1		2		1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 2,572,000	[2]	$ 971,000	[2]	$ 2,572,000	[5]	$ 971,000	[5]
Mortgage Loans on Real Estate | Residential Real Estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts		5		0		6		0
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 4,878,000		$ 1,131,000		$ 5,043,000		$ 2,044,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 4,878,000		$ 1,105,000		$ 5,043,000		$ 1,878,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		0		2		0		2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 0	[2]	$ 263,000	[2]	$ 0	[5]	$ 263,000	[5]
Real Estate Construction | Commercial Real Estate Construction Loan Receivable
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract		0		2		0		3
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 0		$ 7,004,000		$ 0		$ 9,614,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 0		$ 7,004,000		$ 0		$ 9,614,000
Commercial Portfolio Segment | Cash Flow
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract		6		4		10		8
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 30,300,000		$ 112,000		$ 30,557,000		$ 873,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 30,300,000		$ 112,000		$ 30,557,000		$ 694,000
Commercial Portfolio Segment | Asset Based
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract		2		6		4		12
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 1,504,000		$ 3,309,000		$ 2,133,000		$ 4,708,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 1,504,000		$ 3,309,000		$ 2,133,000		$ 4,708,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract		0		1		0		1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 0	[2]	$ 375,000	[2]	$ 0	[5]	$ 375,000	[5]
Commercial Portfolio Segment | Equipment Finance Commercial Financing Receivable
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract		4		5		6		9
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 1,624,000		$ 49,205,000		$ 4,284,000		$ 53,338,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 0		$ 49,205,000		$ 2,660,000		$ 53,338,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		1		2		1		2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 39,912,000	[2],[7]	$ 1,635,000	[2]	$ 39,912,000	[5],[8]	$ 1,635,000	[5]
Consumer Portfolio Segment
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract		2		0		3		1
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 738,000		$ 0		$ 798,000		$ 91,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 30,000		$ 0		$ 90,000		$ 91,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		0		1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	[2]	$ 0		$ 16,000
Consumer Portfolio Segment | Consumer Portfolio Segment
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract						0		1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	[5]					$ 0		$ 16,000

[1] Represents the balance at June 30, 2016, and there were no charge-offs.

[2] 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.

[3] Represents the balance at June 30, 2015, and there were no charge-offs.

[4] Represents the balance at June 30, 2016, and there were no charge-offs.

[5] 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.

[6] Represents the balance at June 30, 2015, and there were no

[7] The term of the modification for this loan expired in the second quarter of 2016 and was not renewed until the third quarter of 2016. Thus, the loan was in payment default under the loan's original terms at June 30, 2016. As of the date of this filing, the borrower is current in accordance with the renewed contractual terms, which are generally consistent with those of the prior modification.

[8] The term of the modification for this loan expired in the second quarter of 2016 and was not renewed until the third quarter of 2016. Thus, the loan was in payment default under the loan's original terms at June 30, 2016. As of the date of this filing, the borrower is current in accordance with the renewed contractual terms, which are generally consistent with those of the prior modification.