XML 64 R47.htm IDEA: XBRL DOCUMENT v3.6.0.2
Capital Stock (Tables)
 12 Months Ended
Dec. 31, 2016
Equity [Abstract]  
Schedule of Common Stock Outstanding Roll Forward The changes in shares of common stock outstanding for the three years ended December 31 are as follows:
(in thousands of shares)
2016
 
2015
 
2014
Beginning Balance, January 1
178,377

 
182,300

 
184,557

Stock incentive plan net activity
1,085

 
1,280

 
1,226

Repurchase of common stock
(95
)
 
(5,203
)
 
(3,483
)
Ending Balance, December 31
179,367

 
178,377

 
182,300