Scheduled Maturities of FHLB Advances (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
FHLB Advances
Maturing within one year, Amount	$ 285,847	$ 200,869
Maturing within one year, Weighted rate	2.63%	1.64%
Maturing one year through two years, Amount	$ 1,572	$ 887
Maturing one year through two years, Weighted rate	3.50%	2.05%
Maturing two years through three years, Amount	$ 150,370	$ 1,651
Maturing two years through three years, Weighted rate	3.77%	3.58%
Maturing three years through four years, Amount	$ 918	$ 148,721
Maturing three years through four years, Weighted rate	5.25%	2.69%
Maturing four years through five years, Amount	$ 204	$ 945
Maturing four years through five years, Weighted rate	5.45%	5.25%
Thereafter, Amount	$ 1,264	$ 922
Thereafter, Weighted rate	4.82%	5.42%
Total, Amount	$ 440,175	$ 353,995
Total, Weighted rate	3.03%	2.11%