GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Mar. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Cost	$ 1,161,772	$ 79,289
Accumulated Amortization	(104,840)	(47,709)
Net	1,056,932	31,580
Developed technology
Finite-Lived Intangible Assets [Line Items]
Cost	252,852	30,865
Accumulated Amortization	(55,191)	(25,561)
Net	197,661	5,304
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Cost	832,606	38,498
Accumulated Amortization	(34,092)	(16,935)
Net	798,514	21,563
Distributor relationships
Finite-Lived Intangible Assets [Line Items]
Cost	1,626	1,585
Accumulated Amortization	(1,626)	(711)
Net	0	874
Definite lived trademark and tradenames
Finite-Lived Intangible Assets [Line Items]
Cost	43,900
Accumulated Amortization	(3,578)
Net	40,322
Core technology
Finite-Lived Intangible Assets [Line Items]
Cost	7,129	7,118
Accumulated Amortization	(4,393)	(3,660)
Net	2,736	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	281	280
Accumulated Amortization	(281)	(280)
Net	0	0
Leasehold interest
Finite-Lived Intangible Assets [Line Items]
Cost	2,600
Accumulated Amortization	(271)
Net	2,329
Backlog
Finite-Lived Intangible Assets [Line Items]
Cost	18,200
Accumulated Amortization	(4,385)
Net	13,815
Capitalized software
Finite-Lived Intangible Assets [Line Items]
Cost	1,149
Accumulated Amortization	0
Net	1,149
Other
Finite-Lived Intangible Assets [Line Items]
Cost	1,093	943
Accumulated Amortization	(687)	(562)
Net	$ 406	$ 381