DEPOSITS (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Cash and Cash Equivalents [Line Items]
Time deposits held in Certificates of Deposit	$ 1,192,575
Deposit overdrafts as other consumer loans	1,200	$ 1,200
CDARS
Cash and Cash Equivalents [Line Items]
Time deposits held in Certificates of Deposit	$ 1,000	$ 4,900
Maximum | CDARS
Cash and Cash Equivalents [Line Items]
Maturity of deposits held in Certificate of Deposits	1 year