SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Restructuring Reserve [Roll Forward]
Accrued restructuring charge at beginning			$ 694
Restructuring charge	$ 6,214		6,588
Cash paid			(1,788)
Non-cash items			(2,207)
Accrued restructuring charge at end	$ 3,287		$ 3,287