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Deposits (Months to Maturities Of Time Deposits) (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Banking and Thrift [Abstract]    
Months to maturity 3 or less $ 35,887  
Months to maturity over 3 to 6 31,978  
Months to maturity over 6 to 12 49,942  
Months to maturity over 12 142,465  
Total time deposits $ 260,272 $ 205,065