EXIT COSTS AND OTHER RELATED CHARGES (Details) - USD ($) $ in Thousands	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2016	May 31, 2015	May 31, 2014
Restructuring Cost and Reserve [Line Items]
Exit costs and other related charges	$ 0	$ 5,513	$ 0	$ 0
Estimated additional costs		1,300
Employee Severance
Restructuring Cost and Reserve [Line Items]
Exit costs and other related charges		4,800
Impairment Loss On Property, Plant And Equipment
Restructuring Cost and Reserve [Line Items]
Exit costs and other related charges		$ 700