NET INCOME (LOSS) PER SHARE - Schedule of Calculations of Basic and Diluted Net Income (Loss) Per Share and Potential Common Shares (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Numerator:
Net income (loss)	$ (8,998)	$ 7,669
Denominator:
Denominator for basic net income per share - weighted average common shares outstanding (in shares)	93,344	40,776
Dilutive common equivalent shares:
Weighted average stock options (in shares)	0	0
Weighted average restricted stock units (in shares)	0	595
Denominator for diluted net income per share - weighted average shares outstanding (in shares)	93,344	41,371
Net income (loss) per share:
Basic net income (loss) per share (in USD per share)	$ (0.10)	$ 0.19
Diluted net income (loss) per share (in USD per share)	$ (0.10)	$ 0.19