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Deposits - Schedule of Time Deposits Maturities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Investments [Line Items]    
2016 $ 56,692  
2017 12,717  
2018 36,506  
2019 4,397  
2020 17,076  
Thereafter 0  
Time deposits $ 127,388 $ 121,775