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REVENUE RECOGNITION - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2018 | Apr. 01, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Contract with customer, revenue recognized | $ 2.3 | $ 5.5 |
Subscription term |  | 24 months |
Remaining performance obligation, amount | $ 160.0 | $ 160.0 |
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 |
Accounting Standards Update 2014-09 |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Deferred commission costs, amortization period |  |  | 5 years

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