STOCKHOLDERS' EQUITY (Treasury Stock) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Oct. 31, 2015
Treasury Stock
Aggregate cost of shares repurchased during the period	$ 9,510	$ 12,765
Treasury stock (in shares)	2,565,399	2,080,187
Stock Repurchase Program
Treasury Stock
Amount of stock repurchases authorized			$ 50,000
Number of shares repurchased during the period	485,212
Aggregate cost of shares repurchased during the period	$ 9,500
Amount available for repurchase	$ 37,700