GOODWILL & INTANGIBLE ASSETS - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Cost	$ 1,100,816	$ 1,091,217
Accumulated Amortization	(667,397)	(597,951)
Net	433,419	493,266
Developed technology
Finite-Lived Intangible Assets [Line Items]
Cost	250,247	252,071
Accumulated Amortization	(224,426)	(212,688)
Net	$ 25,821	$ 39,383
Developed technology | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	3 years	3 years
Developed technology | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	13 years	13 years
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Cost	$ 769,404	$ 775,898
Accumulated Amortization	(384,347)	(333,903)
Net	$ 385,057	$ 441,995
Customer relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	8 years	8 years
Customer relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	18 years	18 years
Distributor relationships and technology licenses
Finite-Lived Intangible Assets [Line Items]
Cost	$ 11,408	$ 11,469
Accumulated Amortization	(8,896)	(7,829)
Net	$ 2,512	$ 3,640
Distributor relationships and technology licenses | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	1 year	1 year
Distributor relationships and technology licenses | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	6 years	6 years
Definite-lived trademark and trade name
Finite-Lived Intangible Assets [Line Items]
Cost	$ 57,748	$ 39,434
Accumulated Amortization	(37,944)	(31,467)
Net	$ 19,804	$ 7,967
Definite-lived trademark and trade name | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	2 years	2 years
Definite-lived trademark and trade name | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	9 years	9 years
Core technology
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	10 years	10 years
Cost	$ 7,192	$ 7,192
Accumulated Amortization	(7,192)	(7,192)
Net	$ 0	0
Net beneficial leases
Finite-Lived Intangible Assets [Line Items]
Cost		336
Accumulated Amortization		(336)
Net		$ 0
Net beneficial leases | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years		3 years
Net beneficial leases | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years		4 years
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	3 years	3 years
Cost	$ 292	$ 292
Accumulated Amortization	(292)	(292)
Net	$ 0	$ 0
Capitalized software
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	3 years	3 years
Cost	$ 3,317	$ 3,317
Accumulated Amortization	(3,317)	(3,281)
Net	0	36
Other
Finite-Lived Intangible Assets [Line Items]
Cost	1,208	1,208
Accumulated Amortization	(983)	(963)
Net	$ 225	$ 245
Other | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	1 year	1 year
Other | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life in Years	20 years	20 years