Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Common Share (Details)

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Net Loss Per Common Share (Details)
In Millions, unless otherwise specified
6 Months Ended 3 Months Ended
Sep. 30, 2014
Antidilutive stock options and restricted stock units
Sep. 30, 2013
Antidilutive stock options and restricted stock units
Sep. 30, 2013
Warrants
Net Loss Per Common Share      
Antidilutive securities excluded from diluted net loss per common share computations 15.5 15.4 22.0