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Inventories (Tables)
12 Months Ended
Dec. 31, 2022
Inventory Disclosure [Abstract]  
Summary of Inventories
The following table summarizes inventories as of December 31, 2022 and January 1, 2022:

(in millions of U.S. dollars)December 31, 2022January 1, 2022
Raw materials$68.5 $56.7 
Finished goods30.9 27.0 
Resale items11.1 9.1 
Other1.6 1.8 
Total$112.1 $94.6