v3.7.0.1
Deposits - Summary of Outstanding Balance of Deposits and Average Rates (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Deposits [Abstract]    
Demand deposits, Noninterest-bearing $ 742,544 $ 661,781
Demand deposits, Interest-bearing 278,879 194,274
Money market and savings 1,004,444 941,344
Certificates of deposits 754,510 629,396
Total $ 2,780,377 $ 2,426,795
Demand deposits, Noninterest-bearing, Weighted Average Rate   0.00%
Demand deposits, Interest-bearing, Weighted Average Rate 0.60% 0.471%
Money market and savings, Weighted Average Rate 0.768% 0.677%
Certificates of deposits, Weighted Average Rate 0.614% 0.589%
Total, Weighted Average Rate 0.504% 0.453%