REVENUE RECOGNITION - Narrative (Details) $ in Millions	6 Months Ended
	Sep. 30, 2019 USD ($)
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer, revenue recognized	$ 2.8
Revenue, remaining performance obligation, amount	$ 220.0
Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Deferred commission costs, amortization period	5 years
Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
subscription term	1 year
Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
subscription term	4 years