Intangible Assets, Net - Summary of Intangible Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 30, 2017
Intangibles And Other Assets Net [Line Items]
Not subject to amortization	$ 289.6	$ 288.6
Subject to amortization
Cost	660.5	635.4
Accumulated Amortization	205.4	172.9
Net	455.1	462.5
Cost	950.1	924.0
Net	744.7	751.1
Customer relationships
Subject to amortization
Cost	596.7	583.4
Accumulated Amortization	181.6	154.7
Net	415.1	428.7
Patents
Subject to amortization
Cost	15.2	15.2
Accumulated Amortization	1.8	1.0
Net	13.4	14.2
Software
Subject to amortization
Cost	31.6	28.8
Accumulated Amortization	16.8	13.0
Net	14.8	15.8
Other
Subject to amortization
Cost	17.0	8.0
Accumulated Amortization	5.2	4.2
Net	11.8	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	$ 265.1	$ 264.1