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Capital Stock (Tables)
 9 Months Ended
Sep. 30, 2015
Equity [Abstract]  
Capital Stock

The following is a schedule of changes in the number of common shares outstanding since the beginning of 2014:

 

 

 

Nine Months
Ended
September 30,
2015

 

 

Year
Ended
December 31,
2014

 

Beginning balance

 

 

168,628,177

 

 

 

163,342,894

 

Equity offering

 

 

—

 

 

 

4,560,000

 

SARs exercised

 

 

77,002

 

 

 

195,242

 

Restricted stock grants

 

 

334,201

 

 

 

270,062

 

Restricted stock units vested

 

 

247,201

 

 

 

244,413

 

Treasury shares issued

 

 

22,939

 

 

 

15,566

 

Ending balance

 

 

169,309,520

 

 

 

168,628,177