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Share-Based Compensation
9 Months Ended
Sep. 30, 2011
Share-Based Compensation 
Share-Based Compensation

 

 

10.  Share-Based Compensation

 

A summary of stock option activity and related information for the nine months ended September 30, 2011 is presented in the table below.  All options outstanding expire prior to December 31, 2013.

 

 

 

Options

 

Weighted
average
exercise price

 

Outstanding, December 31, 2010

 

298,295

 

$

29.98

 

Granted

 

 

 

Exercised

 

(156,112

)

30.89

 

Terminated/Cancelled

 

(76,347

)

29.21

 

Outstanding, September 30, 2011

 

65,836

 

$

28.70

 

Exercisable, September 30, 2011

 

65,836

 

$

28.70