REVENUE - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue recognized			$ 234.8
Deferred revenue	$ 419.0		419.0
Unrecognized accounts receivable and deferred revenue	5.5		5.5		$ 7.1
Capitalized contract cost	8.1		8.1		7.4
Amortization of capitalized costs to obtain contracts	1.6	$ 1.6	4.7	$ 4.7
Prepaid Expenses and Other Current Assets
Disaggregation of Revenue [Line Items]
Capitalized contract cost	4.4		4.4		4.1
Other Assets
Disaggregation of Revenue [Line Items]
Capitalized contract cost	$ 3.7		$ 3.7		$ 3.3
Minimum
Disaggregation of Revenue [Line Items]
Payment terms			30 days
Maximum
Disaggregation of Revenue [Line Items]
Payment terms			90 days