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Inventories - (Tables)
3 Months Ended
Mar. 28, 2020
Inventory Disclosure [Abstract]  
Summary of Inventories
The following table summarizes inventories as of March 28, 2020 and December 28, 2019:

(in millions of U.S. dollars)March 28, 2020December 28, 2019
Raw materials$25.8  $23.8  
Finished goods33.0  24.2  
Resale items15.5  14.0  
Other1.0  0.9  
Total$75.3  $62.9