Segment and Geographic Information - Adjusted EBITDA by Segment (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 128.1	$ 100.9	$ 280.6	$ 202.9
Operating Segments | Americas
Segment Reporting Information [Line Items]
Adjusted EBITDA	128.5	105.4	269.2	213.1
Operating Segments | EMEA
Segment Reporting Information [Line Items]
Adjusted EBITDA	13.0	8.9	30.5	20.6
Operating Segments | Greater China
Segment Reporting Information [Line Items]
Adjusted EBITDA	24.1	19.1	49.2	37.9
Operating Segments | Other
Segment Reporting Information [Line Items]
Adjusted EBITDA	23.1	18.1	42.5	33.3
Corporate
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ (60.5)	$ (50.6)	$ (110.8)	$ (101.9)