NET INCOME (LOSS) PER SHARE - Schedule of Calculations of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Numerator:
Net income (loss)	$ 29,021	$ 36,725	$ 7,915	$ (10,090)
Denominator:
Denominator for basic net income (loss) per share - weighted average common shares outstanding (in shares)	73,492	74,367	72,953	75,780
Dilutive common equivalent shares:
Weighted average restricted stock units (in shares)	386	333	665	0
Denominator for diluted net income (loss) per share - weighted average shares outstanding (in shares)	73,878	74,700	73,618	75,780
Net income (loss) per share:
Basic net income (loss) per share (in dollars per share)	$ 0.39	$ 0.49	$ 0.11	$ (0.13)
Diluted net income (loss) per share (in dollars per share)	$ 0.39	$ 0.49	$ 0.11	$ (0.13)