Annual report pursuant to Section 13 and 15(d)

NET LOSS PER SHARE - Narrative (Details)

v3.19.2
NET LOSS PER SHARE - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive Securities Excluded 4,964,019 1,913,423 6,823,603
3.50% convertible subordinated notes      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Interest expense excluded     $ 3.5