Net Income (Loss) Per Share (Computation of Basic Net Income (Loss) Per Share of Common Stock) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net Income (Loss) Per Share [Abstract]
Net income (loss)	$ (58,694)	$ (37,517)
Weighted average common shares outstanding	303,587,239	75,474,654
Minimum shares issuable under purchase contracts	16,465,704
Total weighted average common shares outstanding, diluted	320,052,943	75,474,654
Basic and diluted net income (loss) per share	$ (0.18)	$ (0.50)