INTANGIBLE ASSETS, GOODWILL AND OTHER ASSETS - Schedule Of Intangibles (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 37,372	$ 31,681
Accumulated Amortization	(25,692)	(19,723)
Net Carrying Amount	11,680	11,958
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	25,702	19,702
Accumulated Amortization	(15,409)	(10,535)
Net Carrying Amount	10,293	9,167
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	9,467	9,776
Accumulated Amortization	(8,080)	(7,366)
Net Carrying Amount	1,387	2,410
Trade names/domains
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,108	2,108
Accumulated Amortization	(2,108)	(1,727)
Net Carrying Amount	$ 0	$ 381