Revenue (Tables)

9 Months Ended

Sep. 29, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Further disaggregation of net revenue to external customers by geographic area based on customer location is as follows:

	For the Three Months Ended				For the Nine Months Ended
(in millions of U.S. dollars)	September 29, 2018		September 30, 2017		September 29, 2018		September 30, 2017
United States	$	457.8	$	431.1	$	1,330.0	$	1,278.7
United Kingdom	41.7		40.5		126.8		118.1
Canada	16.7		16.8		48.8		47.0
All other countries	93.1		92.5		268.1		254.6
Total 1	$	609.3	$	580.9	$	1,773.7	$	1,698.4

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¹     Prior-period amounts are not adjusted under the modified-retrospective method of adoption.