Inventories (Tables)

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Summary of Inventories

The following table summarizes inventories as of March 31, 2018 and December 30, 2017:

(in millions of U.S. dollars)	March 31, 2018		December 30, 2017
Raw materials	$	77.0	$	68.1
Finished goods		39.7		34.3
Resale items		20.6		21.8
Other		2.4		3.4
Total	$	139.7	$	127.6