Loans and Credit Quality (Details 9) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2015 USD ($)		Jun. 30, 2014 USD ($)		Jun. 30, 2015 USD ($)		Jun. 30, 2014 USD ($)
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	7		0		7		2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 3,260	[1],[2]	$ 0	[1],[3]	$ 3,260	[1],[2]	$ 427	[4]
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	3		0		3		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 1,234	[1]	$ 0	[1]	$ 1,234	[1]	$ 0	[4]
Commercial Portfolio Segment [Member] | Collateralized Loan Obligations [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1		0		1		2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 375	[1]	$ 0	[1]	$ 375	[1]	$ 427	[4]
Equipment Finance Commercial Financing Receivable [Member] | Unsecured Commercial Member [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	2		0		2		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 1,635	[1]	$ 0	[1]	$ 1,635	[1]	$ 0	[4]
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1		0		1		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 16	[1]	$ 0	[1]	$ 16	[1]	$ 0	[4]

[1] (1) 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.

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

[3] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjQzZTRiNjllMDRmYTQ5MWViNDA4ZGY3OTdhNWI1YzNkfFRleHRTZWxlY3Rpb246NUQyQzREMzg0ODBFQkEwRDkxMzVFMTgwMjQ5ODIxRjQM}

[4] (1) 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.