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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 |

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