RESTRUCTURING CHARGES - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2018	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
RESTRUCTURING CHARGES
Restructuring charges	$ 65,800	$ 82,700	$ 99,005	$ 66,845	$ 38,758
Restructuring charges, total cost					49,400
Cost of sales
RESTRUCTURING CHARGES
Restructuring charges	60,400	$ 58,900	99,000	66,800	$ 38,800
Long-Lived Asset Impairment | Cost of sales
RESTRUCTURING CHARGES
Restructuring charges	$ 66,000		113,300
Non-Cash Charges
RESTRUCTURING CHARGES
Restructuring charges				12,100
Non-Cash Charges | Long-Lived Asset Impairment | Cost of sales
RESTRUCTURING CHARGES
Restructuring charges			73,200
Cash Charges
RESTRUCTURING CHARGES
Restructuring charges				$ 78,600