Research and Development (Tables)
9 Months Ended
Sep. 30, 2011
Research and Development [Abstract] 
Project Research and Development Expenses Incurred and Amounts Funded
The following table summarizes the COTS project research and development expenses incurred and amounts funded by NASA (in millions):

   
Third Quarter
  
First Nine Months
  
Inception
 
   
2011
  
2010
  
2011
  
2010
  
To Date
 
Research and development costs incurred (1)
 $36.8  $39.9  $115.1  $107.0  $374.3 
Less - amounts funded by NASA
  23.0   19.0   82.3   52.1   234.6 
Net research and development expenses
 $13.8  $20.9  $32.8  $54.9  $139.7 

(1) Includes associated general and administrative expenses.