NET LOSS PER SHARE - Antidilutive Securities (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential anti-dilutive shares (in shares)	10,853	14,034	10,853	14,034
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential anti-dilutive shares (in shares)	1,097	2,071	1,097	2,071
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential anti-dilutive shares (in shares)		11,434	9,192	11,434
Potential shares attributable to the ESPP
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential anti-dilutive shares (in shares)	564	529	564	529