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Share-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2011
Employee Stock Option [Member]
 
Share-Based Compensation [Line Items] 
Summary Of Stock Option Activity
     Options     Weighted Average
Exercise Price
 
     (Options in thousands)        

Outstanding as of December 31, 2010

     3,575      $ 28.29   

Granted

     566        21.87   

Exercised

     (142     14.60   

Forfeited

     (106     23.96   

Cancelled

     (141     36.96   
  

 

 

   

Outstanding as of September 30, 2011

     3,752      $ 27.64   
  

 

 

   

Exercisable as of September 30, 2011

     2,701      $ 29.05   
  

 

 

   
Restricted Stock [Member]
 
Share-Based Compensation [Line Items] 
Restricted Stock Under Our Plans
     Shares     Weighted Average
Grant-Date Fair
Value Per Share
 
     (Shares in thousands)        

Outstanding as of December 31, 2010

     2,189      $ 23.17   

Granted

     1,259        21.91   

Vested

     (730     14.66   

Forfeited

     (306     26.05   
  

 

 

   

Outstanding as of September 30, 2011

     2,412      $ 24.73