Loans and Leases (Details 9)		3 Months Ended				9 Months Ended
		Sep. 30, 2015 USD ($) Contract		Sep. 30, 2014 USD ($) Contract		Sep. 30, 2015 USD ($) Contract		Sep. 30, 2014 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down		$ 0		$ 200,000.0		$ 0		$ 200,000.0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract		3		3		5		5
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 2,037,000	[1],[2]	$ 1,227,000	[2],[3]	$ 3,240,000	[1],[2]	$ 1,358,000	[4],[5]
Commercial Real Estate Construction Loan Receivable [Member] | Real Estate Construction [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract		0		1		0		1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	[2]	$ 0		$ 1,190,000		$ 0		$ 1,190,000
Mortgage Loans on Real Estate [Member] | Real Estate Mortgage Other Receivable [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract		3		0		5		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment		$ 2,037,000	[2]	$ 0	[2]	$ 3,240,000	[2]	$ 0	[5]
Commercial Portfolio Segment [Member] | Unsecured Commercial Member [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract		0		2		0		2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	[2]	$ 0		$ 37,000		$ 0		$ 37,000
Commercial Portfolio Segment [Member] | Collateralized Loan Obligations [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract						0		1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment						$ 0	[2]	$ 22,000	[5]
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract						0		1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment						$ 0	[2]	$ 109,000	[5]

[1] Represents the balance at September 30, 2015, 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 September 30, 2014, and is net of charge-offs of $0.2 million

[4] Represents the balance at September 30, 2014, and is net of charge-offs of $0.2 million.

[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.