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Deposits - Summary of Deposits (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Banking And Thrift [Abstract]    
Demand deposits $ 1,069,631 $ 1,035,847
Money market accounts 870,291 843,224
Savings accounts 120,000 126,885
Time deposits of $100,000 or more 85,205 97,704
Time deposits of less than $100,000 30,863 34,603
Checking with interest 457,754 381,698
Total deposits $ 2,633,744 $ 2,519,961