Allowance for Loan Losses Impaired Financing Receivables (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended				12 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Related Allowance	$ 6,531
Originated Loans
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Related Allowance	7,802	[1]	6,468	[1]	6,146	[1]
Impaired Financing Receivable, Recorded Investment	94,567	[1]	96,286	[1]	87,764	[1]
Impaired Financing Receivable, Unpaid Principal Balance	110,385	[1]	113,529	[1]	104,244	[1]
Impaired Financing Receivable, Average Recorded Investment	94,651	[1]	105,308	[1]	93,702	[1]
Originated Loans | Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,538	[1]	1,031	[1]	2,503	[1]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	4,980	[1]	3,423	[1]	6,679	[1]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	3,543	[1]	3,075	[1]	7,256	[1]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	7,866	[1]	8,408	[1]	5,551	[1]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	11,562	[1]	11,553	[1]	7,428	[1]
Impaired Financing Receivable, Related Allowance			3,169	[1]	3,235	[1]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	8,071	[1]	10,469	[1]	5,009	[1]
Originated Loans | Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	20,635	[1]	17,021	[1]	17,871	[1]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	26,026	[1]	23,892	[1]	23,709	[1]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	22,249	[1]	19,143	[1]	18,639	[1]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	4,849	[1]	7,379	[1]	2,744	[1]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	4,851	[1]	7,416	[1]	2,870	[1]
Impaired Financing Receivable, Related Allowance			1,010	[1]	229	[1]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	829	[1]	7,558	[1]	2,836	[1]
Originated Loans | Commercial Real Estate Construction Financing Receivable
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	53	[1]	1,005	[1]	906	[1]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	76	[1]	1,282	[1]	1,179	[1]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	256	[1]	2,294	[1]	1,035	[1]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	[1]	0	[1]	0	[1]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	[1]	0	[1]	0	[1]
Impaired Financing Receivable, Related Allowance			0	[1]	0	[1]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	[1]	0	[1]	0	[1]
Originated Loans | Installment
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	4,510	[1]	3,464	[1]	2,813	[1]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	4,620	[1]	4,882	[1]	3,978	[1]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	4,636	[1]	3,838	[1]	3,338	[1]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	19,884	[1]	26,676	[1]	24,472	[1]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	20,673	[1]	26,772	[1]	24,558	[1]
Impaired Financing Receivable, Related Allowance			557	[1]	1,014	[1]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	20,498	[1]	27,032	[1]	24,985	[1]
Originated Loans | Home equity lines
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,041	[1]	1,158	[1]	1,018	[1]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,047	[1]	1,481	[1]	1,347	[1]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,067	[1]	1,217	[1]	1,079	[1]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	5,915	[1]	5,661	[1]	5,707	[1]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	6,145	[1]	5,661	[1]	5,707	[1]
Impaired Financing Receivable, Related Allowance			197	[1]	223	[1]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	5,995	[1]	5,784	[1]	5,874	[1]
Originated Loans | Consumer Credit Card
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	34	[1]	57	[1]	49	[1]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	34	[1]	57	[1]	49	[1]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	48	[1]	76	[1]	91	[1]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	945	[1]	1,205	[1]	1,064	[1]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	945	[1]	1,205	[1]	1,064	[1]
Impaired Financing Receivable, Related Allowance			255	[1]	312	[1]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,019	[1]	1,310	[1]	1,238	[1]
Originated Loans | Consumer Residential Mortgages Financing Receivable
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	12,729	[1]	10,682	[1]	10,250	[1]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	15,748	[1]	13,294	[1]	12,778	[1]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	12,828	[1]	10,934	[1]	10,258	[1]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	13,568	[1]	12,539	[1]	12,816	[1]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	13,678	[1]	12,611	[1]	12,898	[1]
Impaired Financing Receivable, Related Allowance			1,280	[1]	1,133	[1]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	13,612	[1]	12,578	[1]	12,064	[1]
Originated Loans | Total impaired loans with no related allowance
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	41,540	[1]	34,418	[1]	35,410	[1]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	52,531	[1]	48,311	[1]	49,719	[1]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	44,627	[1]	40,577	[1]	41,696	[1]
Originated Loans | Total impaired loans with a related allowance
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	53,027	[1]	61,868	[1]	52,354	[1]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	57,854	[1]	65,218	[1]	54,525	[1]
Impaired Financing Receivable, Related Allowance	7,802	[1]	6,468	[1]	6,146	[1]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	50,024	[1]	64,731	[1]	52,006	[1]
Originated Loans
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	7,802		6,468		6,146
Impaired Financing Receivable, Related Allowance	5,134
Originated Loans | Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	5,092
Originated Loans | Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	112
Originated Loans | Commercial Real Estate Construction Financing Receivable
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	9
Consumer Residential Mortgages Financing Receivable
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Related Allowance	1,019
Consumer Residential Mortgages Financing Receivable | Originated Consumer Loans | Consumer Residential Mortgages Financing Receivable
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	1,019
Consumer Credit Card
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Related Allowance	361
Consumer Credit Card | Originated Consumer Loans | Consumer Credit Card
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	361
Consumer Installment
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Related Allowance	1,022
Consumer Installment | Originated Consumer Loans | Installment
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	1,008
Home equity lines
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Related Allowance	201
Home equity lines | Originated Consumer Loans | Home equity lines
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 201

[1] Note 1: These tables exclude loans fully charged off.Note 2: The differences between the recorded investment and unpaid principal balance amounts represents partial charge offs.