Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Millions	Dec. 30, 2017	Dec. 31, 2016
Intangibles And Other Assets Net [Line Items]
Intangible assets - Cost	$ 635.4	$ 580.1
Total intangible assets - Cost	924.0	861.7
Intangible assets - Cost	288.6	281.6
Intangible assets - Accumulated Amortization	172.9	102.7
Intangible assets- Net	462.5	477.4
Total intangible assets - Net	751.1	759.0
Intangible assets- Net	288.6	281.6
Customer Relationships [Member]
Intangibles And Other Assets Net [Line Items]
Intangible assets - Cost	583.4	552.3
Intangible assets - Accumulated Amortization	154.7	94.3
Intangible assets- Net	428.7	458.0
Software [Member]
Intangibles And Other Assets Net [Line Items]
Intangible assets - Cost	28.8	20.5
Intangible assets - Accumulated Amortization	13.0	6.3
Intangible assets- Net	15.8	14.2
Other [Member]
Intangibles And Other Assets Net [Line Items]
Intangible assets - Cost	8.0	7.3
Intangible assets - Accumulated Amortization	4.2	2.1
Intangible assets- Net	3.8	5.2
Patents [Member]
Intangibles And Other Assets Net [Line Items]
Intangible assets - Cost	15.2
Intangible assets - Accumulated Amortization	1.0
Intangible assets- Net	14.2
Rights [Member]
Intangibles And Other Assets Net [Line Items]
Intangible assets - Cost	24.5	24.5
Intangible assets- Net	24.5	24.5
Trademarks [Member]
Intangibles And Other Assets Net [Line Items]
Intangible assets - Cost	264.1	257.1
Intangible assets- Net	$ 264.1	$ 257.1