Intangible Assets, Net - Summary of Intangible Assets (Detail) - USD ($) $ in Millions	Sep. 29, 2018	Dec. 30, 2017
Intangibles And Other Assets Net [Line Items]
Not subject to amortization	$ 290.9	$ 288.6
Subject to amortization
Cost	665.9	635.4
Accumulated Amortization	224.4	172.9
Net	441.5	462.5
Cost	956.8	924.0
Net	732.4	751.1
Customer relationships
Subject to amortization
Cost	599.3	583.4
Accumulated Amortization	197.4	154.7
Net	401.9	428.7
Patents
Subject to amortization
Cost	15.2	15.2
Accumulated Amortization	2.2	1.0
Net	13.0	14.2
Software
Subject to amortization
Cost	34.4	28.8
Accumulated Amortization	19.0	13.0
Net	15.4	15.8
Other
Subject to amortization
Cost	17.0	8.0
Accumulated Amortization	5.8	4.2
Net	11.2	3.8
Rights
Intangibles And Other Assets Net [Line Items]
Not subject to amortization	24.5	24.5
Trademarks
Intangibles And Other Assets Net [Line Items]
Not subject to amortization	$ 266.4	$ 264.1