XML 60 R46.htm IDEA: XBRL DOCUMENT v3.6.0.2
Capital Stock (Tables)
 12 Months Ended
Dec. 31, 2016
Capital Stock [Abstract]  
Summary of Common Share Activity
A summary of common share activity for the years ended December 31 follows (in shares):
 
 
2016
 
2015
 
2014
Common shares outstanding at January 1
 
139,441,298

 
139,000,471

 
138,207,889

Shares repurchased
 
(162,563
)
 
(165,138
)
 
(36,702
)
Shares issued upon exercise of employee stock options
 
348,640

 
207,890

 
744,431

Restricted stock issued to employees, net of forfeitures
 
187,209

 
375,575

 
60,933

Shares issued to non-employee directors
 
25,644

 
22,500

 
23,920

Common shares outstanding at December 31
 
139,840,228

 
139,441,298

 
139,000,471