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Fair Value (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 | Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |  |
Impaired Financing Receivable, Carrying Value | $ 89,700,000 |  | $ 89,700,000 |  | $ 101,900,000 |  |  |
Discount percentage applied to real estate appraised values |  |  | 15.00% |  |  |  |  |
Discount percentage applied to lot development appraised values |  |  | 6.00% |  |  |  |  |
Partial Charge-Offs On Impaired Loans |  |  | 58,400,000 |  | 63,300,000 |  |  |
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 6,343,000 |  | 6,343,000 |  | 10,451,000 |  |  |
Impaired Financing Receivable, Related Allowance | 6,343,000 |  | 6,343,000 |  | 10,451,000 |  |  |
Impaired loans carried at fair value | 30,183,000 |  | 30,183,000 |  | 33,819,000 |  |  |
Partial Charge-Offs On Impaired Loans carried at Fair Value |  |  | 42,900,000 |  | 49,000,000 |  |  |
Book Value Of Impaired Loans Carried At Fair Value | 33,600,000 |  | 33,600,000 |  | 41,000,000 |  |  |
Impaired Financing Receivable, carried at fair value, related expense | 300,000 | (200,000) | 2,500,000 | 2,100,000 |  |  |  |
MSR recorded at lower of cost or fair value | 8,662,000 | 8,260,000 | 8,662,000 | 8,260,000 | 9,013,000 | 8,778,000 | 8,121,000 | 7,763,000
Mortgage Servicing Rights Fair Value | 2,600,000 |  | 2,600,000 |  |  |  |  |
Valuation allowance of MSR | 992,000 | 2,084,000 | 992,000 | 2,084,000 | 1,031,000 | 1,031,000 | 2,262,000 | 2,324,000
MSRs recorded at cost | 6,100,000 |  | 6,100,000 |  | 6,700,000 |  |  |
Changes due to fair value adjustments | 39,000 | 178,000 | 39,000 | 240,000 |  |  |  |
Other Real Estate, Foreclosed Assets, and Repossessed Assets | 23,909,000 |  | 23,909,000 |  | 34,636,000 |  |  |
Percent of OREO held at fair value | 57.70% |  | 57.70% |  | 53.50% |  |  |
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Fair Value | 13,800,000 |  | 13,800,000 |  | 18,526,000 |  |  |
OREO valuation adjustments | 675,000 | 600,000 | 1,091,000 | 199,000 |  |  |  |
Commercial Receivables, excluding Commercial, Financial, and Agricultural [Domain] |  |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |  |
Impaired Financing Receivable, Related Allowance | 3,402,000 |  | 3,402,000 |  | 7,183,000 |  |  |
Financing Receivable, not collateral dependent [Domain] |  |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |  |
Impaired Financing Receivable, Related Allowance | $ 2,941,000 |  | $ 2,941,000 |  | $ 3,268,000 |  |  |

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