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Loans And Allowance For Loan Losses (Narrative) (Details) (USD $)
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12 Months Ended |
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Accounts, Notes, Loans and Financing Receivable [Line Items] |
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| Loans to individuals and businesses |
$ 413,800,000 |
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| Percentage of loans to individuals and businesses |
30.00% |
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| Loans held for sale |
1,500,000 |
3,100,000 |
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| Period to sell loans from the date of closing |
1 month |
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| Accrued additional interest income |
700,000 |
1,200,000 |
1,200,000 |
| Cumulative charge-offs against noncovered nonaccrual loans |
6,000,000 |
8,200,000 |
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| Interest income recognized on troubled debt restructurings |
1,000,000 |
2,200,000 |
1,900,000 |
| Troubled debt restructuring default period |
90 days |
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| Troubled debt restructuring Period |
12 months |
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| Loans and Leases Receivable, Impaired, Commitment to Lend |
0 |
0 |
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| Real Estate Mortgage [Member] |
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| Accounts, Notes, Loans and Financing Receivable [Line Items] |
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| Unpaid principal of mortgage loans serviced for others |
$ 410,300,000 |
$ 390,700,000 |
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