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COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract] |  |  |  |
Rent expense | $ 2.6 | $ 1.4 | $ 7.9 | $ 4.1
Income tax examination, incremental sales tax liability |  |  | $ 6.5 |

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- Definition Income Tax Examination, Incremental Sales Tax Liability + References No definition available. + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717 + Details
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