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NET INCOME (LOSS) PER SHARE - Narrative (Details) - shares
3 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 4,927,692 1,914,757