Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details)

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Stock-Based Compensation (Details)
 3 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Mar. 31, 2012
Stock-Based Compensation      
Options outstanding (in shares) 3,300,000    
Options prior to Fiscal 2008
      
Stock-Based Compensation      
Options granted (in shares) 3,050,000    
Stock options
      
Stock-Based Compensation      
Options outstanding (in shares) 9,910,655   10,039,651
Options granted (in shares)   250,000  
Portion vesting one year after the issuance date (as a percent) 25.00%    
Portion vesting on first day of each month after one year from the issuance date (as a percent) 2.083%    
Vesting period of awards after issuance date (in years) 1 year    
Vesting period after one year of grant (in months) 48 months    
Contractual term (in years) 10 years    
Stock options | President and chief executive officer
      
Stock-Based Compensation      
Options granted (in shares) 2,000,000    
Stock options | Executive vice president of sales and marketing
      
Stock-Based Compensation      
Options granted (in shares) 850,000    
Stock options | Senior vice president of program management
      
Stock-Based Compensation      
Options granted (in shares) 250,000    
Stock options | Senior vice president of human resources
      
Stock-Based Compensation      
Options granted (in shares) 200,000