Intangible Assets, Net

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets, Net

Note 9—Intangible Assets, Net

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

	March 31, 2018						December 30, 2017
(in millions of U.S. dollars)	Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
Intangible assets
Not subject to amortization
Rights	$	24.5	$	—	$	24.5	$	24.5	$	—	$	24.5
Trademarks		269.6		—		269.6		264.1		—		264.1
Total intangible assets not subject to amortization	$	294.1	$	—	$	294.1	$	288.6	$	—	$	288.6
Subject to amortization
Customer relationships		601.3		170.0		431.3		583.4		154.7		428.7
Patents		15.2		1.4		13.8		15.2		1.0		14.2
Software		30.8		15.0		15.8		28.8		13.0		15.8
Other		8.1		4.7		3.4		8.0		4.2		3.8
Total intangible assets subject to amortization	$	655.4	$	191.1	$	464.3	$	635.4	$	172.9	$	462.5
Total intangibles assets	$	949.5	$	191.1	$	758.4	$	924.0	$	172.9	$	751.1

Amortization expense of intangible assets was $17.0 million and $15.5 million for the three months ended March 31, 2018 and April 1, 2017, respectively.

The estimated amortization expense for intangible assets over the next five years is:

(in millions of U.S. dollars)
Remainder of 2018	$	52.9
2019		62.5
2020		53.7
2021		46.4
2022		40.5
Thereafter		208.3
Total	$	464.3