Loans (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]
Troubled Debt Restructuring, Classification removed	$ 634,000		$ 1,600,000	$ 2,900,000
Partial Charge-Offs On Impaired Loans			58,400,000		63,300,000
Impaired Financing Receivable, Related Allowance	6,343,000		6,343,000		10,451,000
Recorded investment, related to loans	18,300,000		18,300,000		21,400,000
TDRs included in nonaccrual loan totals	62,100,000		62,100,000		76,300,000
TDRs included in accruing loan totals	17,600,000		17,600,000		18,800,000
Nonaccrual TDRs considered current	21,800,000		21,800,000		50,600,000
Commitments to lend additional funds to borrowers whose terms had been modified in a TDR	2,800,000		2,800,000		4,000,000
Specific reserves related to troubled debt restructuring	3,000,000		3,000,000		7,500,000
Additional specific reserves related to troubled debt restructurings	261,000	33,000	279,000	271,000
Modified substandard commercial loans, total recorded investment	1,600,000	1,000,000	1,600,000	1,000,000
Modified substandard consumer loans, total recorded investment	12,500,000	12,000,000	12,500,000	12,000,000
Loan Modifications on Nonacrrual status	789,000	3,000,000	1,700,000	3,300,000
Loan past due period before entering default status			30 days
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	3,300,000	6,497,000	3,493,000	7,608,000
Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Partial Charge-Offs On Impaired Loans			53,900,000		58,100,000
Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Partial Charge-Offs On Impaired Loans			4,500,000		5,200,000
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	939,000	187,000	939,000	187,000
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	781,000		781,000		5,496,000
Accruing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans modified during period	138,000	421,000	297,000	1,100,000
Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans modified during period	$ 3,200,000	$ 6,100,000	$ 3,200,000	$ 6,500,000