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Inventories
 3 Months Ended
Apr. 02, 2017
Inventories [Abstract]  
Inventories
Note 5.
Inventories

The following is a summary of inventories by major category:

  
Apr. 2,
2017
  
Dec. 31,
2016
 
  
(millions of dollars)
 
Raw materials
 
$
76.1
  
$
70.6
 
Work-in-process
  
6.3
   
5.4
 
Finished goods
  
82.1
   
80.5
 
Packaging and supplies
  
31.8
   
30.4
 
Total inventories
 
$
196.3
  
$
186.9