XML 23 R48.htm IDEA: XBRL DOCUMENT v2.4.0.8
Deposits - Additional Information (Details) (USD $)
9 Months Ended 12 Months Ended
Sep. 30, 2013
Dec. 31, 2012
Banking and Thrift [Abstract]    
Certificates of deposit denominations $ 100,000  
Aggregate amount of certificates of deposit in denominations of $100,000 or more $ 285,550,000 $ 253,464,000