XML 20 R19.htm IDEA: XBRL DOCUMENT v2.3.0.15
Stock-Based Compensation
9 Months Ended
Sep. 30, 2011
Stock-Based Compensation [Abstract] 
Stock-Based Compensation
14. Stock-Based Compensation
 
The following table presents the components of Stock-Based Compensation Expense for the three and nine months ended September 30, 2011 and 2010:
   
Three Months Ended
  
Nine Months Ended
 
   
September 30
  
September 30
 
   
2011
  
2010
  
2011
  
2010
 
Stock options and stock appreciation rights
 $597  $429  $1,674  $1,315 
Restricted share awards
  241   213   745   633 
Performance share awards
  247   107   941   370 
Share-based liabilities
  (6)  43   209   153 
Total Stock-Based Compensation Expense
 $1,079  $792  $3,569  $2,471 

During the first nine months of 2011 we granted 29,115 restricted shares. The weighted average grant date fair value of each share awarded was $40.42. Restricted share awards generally have a three year vesting period from the effective date of the grant. The total fair value of shares vested during the nine months ended September 30, 2011 and 2010 was $623 and $131, respectively.