Inventories (Tables)

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Summary of Inventories

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

(in millions of U.S. dollars)	June 30, 2018		December 30, 2017
Raw materials	$	72.0	$	68.1
Finished goods	45.0		34.3
Resale items	21.1		21.8
Other	2.9		3.4
Total	$	141.0	$	127.6