GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Cost	$ 1,168,106	$ 79,289
Accumulated Amortization	(132,666)	(47,709)
Net	1,035,440	31,580
Developed technology
Finite-Lived Intangible Assets [Line Items]
Cost	253,249	30,865
Accumulated Amortization	(69,810)	(25,561)
Net	183,439	5,304
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Cost	834,091	38,498
Accumulated Amortization	(42,526)	(16,935)
Net	791,565	21,563
Distributor relationships
Finite-Lived Intangible Assets [Line Items]
Cost	5,348	1,585
Accumulated Amortization	(1,633)	(711)
Net	3,715	874
Definite lived trademark and tradenames
Finite-Lived Intangible Assets [Line Items]
Cost	43,964
Accumulated Amortization	(5,511)
Net	38,453
Core technology
Finite-Lived Intangible Assets [Line Items]
Cost	7,169	7,118
Accumulated Amortization	(4,659)	(3,660)
Net	2,510	3,458
Net beneficial leases
Finite-Lived Intangible Assets [Line Items]
Cost	336
Accumulated Amortization	(336)
Net	0
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Cost	288	280
Accumulated Amortization	(288)	(280)
Net	0	0
Leasehold interest
Finite-Lived Intangible Assets [Line Items]
Cost	2,600
Accumulated Amortization	(416)
Net	2,184
Backlog
Finite-Lived Intangible Assets [Line Items]
Cost	18,245
Accumulated Amortization	(6,750)
Net	11,495
Capitalized software
Finite-Lived Intangible Assets [Line Items]
Cost	1,625
Accumulated Amortization	0
Net	1,625
Other
Finite-Lived Intangible Assets [Line Items]
Cost	1,191	943
Accumulated Amortization	(737)	(562)
Net	$ 454	$ 381