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Inventories (Tables)
9 Months Ended
Sep. 27, 2015
Inventories [Abstract]  
Inventories by major category
The following is a summary of inventories by major category:

  
Sept. 27,
2015
  
December 31,
2014
 
  
(millions of dollars)
 
Raw materials
 
$
79.3
  
$
85.9
 
Work-in-process
  
5.7
   
6.7
 
Finished goods
  
88.3
   
88.7
 
Packaging and supplies
  
30.3
   
30.5
 
Total inventories
 
$
203.6
  
$
211.8