REVENUE RECOGNITION - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2019	Apr. 01, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer, revenue recognized	$ 2.7
Revenue, remaining performance obligation, amount	$ 190.0
Revenue, remaining performance obligation, expected timing of satisfaction, period	36 months
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