v3.8.0.1
Deposits - Summary of Outstanding Balance of Deposits and Average Rates (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Deposits [Abstract]    
Demand deposits, Noninterest-bearing $ 1,096,472 $ 661,781
Demand deposits, Interest-bearing 278,917 194,274
Money market and savings 1,010,298 941,344
Certificates of deposits 883,039 629,396
Total $ 3,268,726 $ 2,426,795
Demand deposits, Interest-bearing, Weighted Average Rate 0.654% 0.471%
Money market and savings, Weighted Average Rate 0.854% 0.677%
Certificates of deposits, Weighted Average Rate 1.094% 0.589%
Total, Weighted Average Rate 0.615% 0.453%