GOODWILL AND OTHER INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Goodwill [Roll Forward]
Balance at beginning of period	$ 187,591
Translation adjustment	0
Balance at end of period	187,591
Other Intangibles Assets [Roll Forward]
Balance at beginning of period	94,831
Translation adjustment	150
Amortization	(4,316)	$ (4,528)
Balance at end of period	90,665
Total Goodwill and Intangible Assets [Roll Forward]
Balance at beginning of period	282,422
Translation adjustment	150
Amortization	(4,316)	$ (4,528)
Balance at end of period	$ 278,256