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THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capitalized contract cost, amortization period	5 years
Term of contract				132 months
Advertising expense	$ 9.0	$ 32.2	$ 25.0
Equipment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Property, plant and equipment, useful life	3 years
Software and Software Development Costs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Property, plant and equipment, useful life	3 years
Furniture and fixtures
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Property, plant and equipment, useful life	5 years
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of contract	1 year
Renewal term	12 months
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of contract	10 years
Renewal term	5 years
Restricted Stock Units (RSUs) \| Share-based Compensation Award, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Vesting period	1 year
Restricted Stock Units (RSUs) \| Share-based Compensation Award, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	2 years
Computer Software, Intangible Asset
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Finite-lived intangible asset, useful life	3 years
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	3 years