NET LOSS PER SHARE - Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Net loss	$ (43,906)	$ (41,913)
Weighted average common shares outstanding - basic (in shares)	109,925	103,607
Weighted average common shares outstanding - diluted (in shares)	109,925	103,607
Net loss per share:
Basic (in dollars per share)	$ (0.40)	$ (0.40)
Diluted (in dollars per share)	$ (0.40)	$ (0.40)