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Estimated Fair Values Estimated Fair Values (Information on Other Real Estate Owned) (Details) (Fair Value, Measurements, Nonrecurring, Fair Value, Inputs, Level 3, USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
Covered OREO |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Current year foreclosures | $ 41,098 | $ 68,375 | $ 61,630 | $ 109,175
Loan charge-offs recorded due to the measurement and initial recognition of OREO | 7,392 | 7,447 | 8,351 | 7,447
Write-downs recorded subsequent to forelosure for OREO | 11,137 | 11,431 | 11,259 | 15,997
Fair value of OREO remeasured in current year | 24,136 | 7,759 | 33,697 | 12,572
Non-covered OREO |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Current year foreclosures | 12,475 | 19,765 | 18,783 | 13,636
Loan charge-offs recorded due to the measurement and initial recognition of OREO | 130 | 1,385 | 588 | 2,053
Write-downs recorded subsequent to forelosure for OREO | 2,629 | 2,433 | 3,112 | 1,684
Fair value of OREO remeasured in current year | $ 9,301 | $ 17,272 | $ 12,893 | $ 6,567

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