Deposits - Schedule of Maturities of Certificates of Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Weighted Average Rate
2016 (as a percent)	1.06%
2017 (as a percent)	0.94%
2018 (as a percent)	1.08%
2019 (as a percent)	1.46%
2020 (as a percent)	1.60%
2021 and thereafter (as a percent)	1.70%
Total (as a percent)	1.16%
Balance
2016	$ 926,241
2017	392,744
2018	185,089
2019	183,596
2020	305,363
2021 and thereafter	1,149
Total	$ 1,994,182	$ 2,695,506
Percent of Total
2016 (as a percent)	46.45%
2017 (as a percent)	19.69%
2018 (as a percent)	9.28%
2019 (as a percent)	9.21%
2020 (as a percent)	15.31%
2021 and thereafter (as a percent)	0.06%
Total	100.00%