EARNINGS (LOSS) PER SHARE ("EPS") (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Computation of Basic earnings (loss) per share:
Net income (loss)	$ 25,140	$ (29,842)	$ 82,680	$ (31,977)
Less: net income allocated to participating securities	(62)	0	(211)	0
Net income (loss) for basic earnings (loss) per share calculation	$ 25,078	$ (29,842)	$ 82,469	$ (31,977)
Total weighted average shares outstanding—basic (in shares)	113,991	90,428	109,010	86,796
Less: weighted average participating shares outstanding (in shares)	(279)	0	(278)	0
Weighted average common shares outstanding—basic (in shares)	113,712	90,428	108,732	86,796
Basic earnings (loss) per share (in dollars per share)	$ 0.22	$ (0.33)	$ 0.76	$ (0.37)
Earnings Per Share, Diluted [Abstract]
Net income (loss)	$ 25,140	$ (29,842)	$ 82,680	$ (31,977)
Less: net income allocated to participating securities	(59)	0	(206)	0
Net income (loss) for diluted earnings (loss) per share calculation	$ 25,081	$ (29,842)	$ 82,474	$ (31,977)
Weighted average common shares outstanding—basic (in shares)	113,712	90,428	108,732	86,796
Add: dilutive effect of common stock equivalents (in shares)	4,206	0	2,708	0
Weighted average common shares outstanding—diluted (in shares)	117,918	90,428	111,440	86,796
Less: weighted average participating shares outstanding (in shares)	(279)	0	(278)	0
Weighted average common shares outstanding- diluted (in shares)	117,639	90,428	111,162	86,796
Diluted earnings (loss) per share (in dollars per share)	$ 0.21	$ (0.33)	$ 0.74	$ (0.37)