FEDERAL HOME LOAN BANK ADVANCES (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Contractual Maturity, Amount
Overnight	$ 175,000
2016		249,599
2017	294,113	19,149
2018	25,431	25,781
2019	2,140	2,978
Total FHLB advances except overnight advances	321,684	297,507
Total FHLB advances	$ 496,684	$ 297,507
Weighted Average Rate
Overnight (as a percent)	0.74%
2016 (as a percent)		0.75%
2017 (as a percent)	0.82%	0.74%
2018 (as a percent)	1.05%	1.04%
2019 (as a percent)	1.04%	1.08%
Weighted Average Rate for total FHLB advances except overnight advances (as a percent)	0.84%	0.78%
Weighted Average Rate for total FHLB advances (as a percent)	0.80%	0.78%