Basic and Diluted Net Loss Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Numerator:
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ (12,205)	$ (37,050)
Weighted-average shares outstanding:
Basic	46,349	45,552
Assumed conversion of employee stock grants	0	0
Assumed conversion of warrants	0	0
Diluted (in shares)	46,349	45,552
Net income (loss) per basic share:
Net income (loss)	$ (0.26)	$ (0.81)
Assumed conversion of employee stock grants
Common stock equivalents that could potentially dilute net income per basic share in the future, but were not included in the computation of diluted earnings per share because the impact would have been antidilutive
Common stock equivalents	2,330	2,303
Assumed conversion of warrants
Common stock equivalents that could potentially dilute net income per basic share in the future, but were not included in the computation of diluted earnings per share because the impact would have been antidilutive
Common stock equivalents	4,853	6,015