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Borrowings - Collateral Agreement With Federal Home Loans Bank (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Debt Instrument [Line Items]  
Interest Rate, Minimum 0.45%
Interest Rate, Maximum 6.81%
Total available remaining borrowing capacity from FHLB $ 228,124
Minimum
 
Debt Instrument [Line Items]  
Required value of assets pledged as collateral as a percentage to outstanding advances 155.00%