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NON COVERED LOANS AND ALLOWANCE FOR LOAN LOSSES, Allowance for Unfunded Loan Commitments, Off-Balance Sheet Credit Exposures and Recourse Provisions (Details) (USD $)
Jun. 30, 2011
Dec. 31, 2010
Allowance for Unfunded Loan Commitments, Off-Balance Sheet Credit Exposures and Recourse Provisions [Abstract]    
Allowance for unfunded loan commitments, off-balance sheet credit exposures and recourse provisions $ 11,200,000 $ 10,000,000
Off-balance sheet loans serviced for others 1,660,000,000 1,810,000,000
Portion of allowance for unfunded loan commitments, off-balance sheet credit exposures and recourse provisions related to off-balance sheet loans serviced for others $ 4,500,000 $ 4,700,000