Loans (Narrative) (Details) - Receivable Type [Domain] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Deferred Income	$ 10,000		$ 10,000		$ 9,400
Troubled Debt Restructuring, Classification removed		$ 600	0	$ 1,600
Partial Charge-Offs On Impaired Loans			30,024		32,480
Impaired Financing Receivable, Related Allowance	6,597		6,597		3,660
Recorded investment, related to loans	28,000		28,000		9,300
Troubled Debt Restructuring Included In Nonaccrual Loans	40,100		40,100		47,500
TDRs included in accruing loan totals	16,600		16,600		16,300
Nonaccrual Trouble Debt Restructuring Current	18,100		18,100		15,700
Commitments to lend additional funds to borrowers whose terms had been modified in a TDR	1,900		1,900		1,400
Specific reserves related to troubled debt restructuring	3,500		3,500		2,400
Additional Specific Reserves Related To Troubled Debt Restructuring	104	261	961	279
Modified substandard commercial loans, total recorded investment	112	1,600	112	1,600
Modified substandard consumer loans, total recorded investment	10,400	12,500	10,400	12,500
Loan Modifications on Nonacrrual status	301	800	$ 1,300	1,700
Loan past due period before entering default status			30 days
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	1,727	3,300	$ 1,753	3,493
Deposit Liabilities Reclassified as Loans Receivable	2,100		2,100		2,300
Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Partial Charge-Offs On Impaired Loans			25,500		32,400
Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Partial Charge-Offs On Impaired Loans			4,500		0
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	250	939	250	939
Commercial Real Estate [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Related Allowance	0		0		0
Commercial Real Estate [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Related Allowance	688		688		$ 262
Accruing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans modified during period	118	138	118	297
Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans modified during period	$ 1,600	$ 3,200	$ 1,700	$ 3,200