Scheduled Maturities of FHLB Advances (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
FHLB Advances
Maturing within one year, Amount	$ 41,099	$ 185,091
Maturing within one year, Weighted rate	0.84%	1.02%
Maturing one year through two years, Amount	$ 70,983	$ 179
Maturing one year through two years, Weighted rate	1.42%	4.19%
Maturing two years through three years, Amount	$ 927	$ 70,597
Maturing two years through three years, Weighted rate	2.16%	1.01%
Maturing three years through four years, Amount	$ 1,728	$ 167
Maturing three years through four years, Weighted rate	3.66%	3.79%
Maturing four years through five years, Amount	$ 135,000	$ 945
Maturing four years through five years, Weighted rate	3.08%	4.98%
Thereafter, Amount	$ 2,012	$ 137,152
Thereafter, Weighted rate	5.33%	3.12%
Total, Amount	$ 251,749	$ 394,131
Total, Weighted rate	2.27%	1.76%