ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 3,115,000	$ 2,806,000	$ 2,831,000	$ 2,972,000
Other comprehensive gain before reclassifications	85,000	12,000	160,000	(18,000)
Net (gains) losses reclassified from accumulated other comprehensive loss	(14,000)	12,000	(7,000)	4,000
Net current-period other comprehensive gain	71,000	24,000	153,000	(14,000)
Ending balance	3,381,000	2,899,000	3,381,000	2,899,000
Unrealized  loss on derivative instruments and other
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(45,000)	(59,000)	(82,000)	(42,000)
Other comprehensive gain before reclassifications	43,000	1,000	73,000	(8,000)
Net (gains) losses reclassified from accumulated other comprehensive loss	(14,000)	13,000	(7,000)	5,000
Net current-period other comprehensive gain	29,000	14,000	66,000	(3,000)
Ending balance	(16,000)	(45,000)	(16,000)	(45,000)
Foreign currency translation adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(88,000)	(131,000)	(133,000)	(110,000)
Other comprehensive gain before reclassifications	42,000	11,000	87,000	(10,000)
Net (gains) losses reclassified from accumulated other comprehensive loss	0	(1,000)	0	(1,000)
Net current-period other comprehensive gain	42,000	10,000	87,000	(11,000)
Ending balance	(46,000)	(121,000)	(46,000)	(121,000)
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(133,000)	(190,000)	(215,000)	(152,000)
Ending balance	$ (62,000)	$ (166,000)	$ (62,000)	$ (166,000)