Intangible Assets, Net - Summary of Intangible Assets (Details) - USD ($) $ in Millions	Sep. 26, 2020	Dec. 28, 2019
Intangibles And Other Assets Net [Line Items]
Not subject to amortization	$ 451.4	$ 287.1
Subject to amortization
Cost	883.2	614.3
Accumulated Amortization	352.6	304.4
Net	530.6	309.9
Cost	1,334.6	901.4
Net	982.0	597.0
Customer relationships
Subject to amortization
Cost	790.0	534.9
Accumulated Amortization	306.3	267.4
Net	483.7	267.5
Patents
Subject to amortization
Cost	19.2	15.2
Accumulated Amortization	5.8	4.0
Net	13.4	11.2
Software
Subject to amortization
Cost	59.3	49.3
Accumulated Amortization	34.9	28.0
Net	24.4	21.3
Other
Subject to amortization
Cost	14.7	14.9
Accumulated Amortization	5.6	5.0
Net	9.1	9.9
Trademarks
Intangibles And Other Assets Net [Line Items]
Not subject to amortization	$ 451.4	$ 287.1