Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v2.4.0.6
Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2012
Stock-Based Compensation [Abstract]  
Summary Of Stock-Based Compensation Expense
     Three Months
Ended March 31,
 
     2012      2011  

Stock options

   $ 908       $ 842   

Restricted stock units

     1,204         971   
  

 

 

    

 

 

 

Total

   $ 2,112       $ 1,813   
  

 

 

    

 

 

 
Schedule Of Weighted Average Assumptions
Schedule Of Weighted Average Assumptions For Restricted Stock Units
     Three Months Ended
March  31,
     2012    2011

Vesting period

   3.90 years    4.05 years

Expected dividend yield

   1.79%    1.30%

Estimated average grant date fair value per restricted stock unit

   $ 45.90    $ 58.39