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Loans - Additional Information (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Sep. 30, 2014
Loan
Dec. 31, 2013
Receivables [Abstract]    
Loans acquired $ 1.5 $ 3.1
Number of loans classified as troubled debt restructurings 1  
Troubled debt restructuring balance $ 0.1 $ 0.1