Fair Value Measurements - Schedule of Fair Values of Long-term Borrowings (Details) - USD ($) $ in Millions	Oct. 03, 2021	Jan. 03, 2021
Dollar Term Loan Facility
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term borrowings, fair value	$ 1,496.8	$ 2,627.7
Euro Term Loan Facility
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term borrowings, fair value	357.1	401.1
2028 Notes
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term borrowings, fair value	434.4	710.4
2025 Notes
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term borrowings, fair value	$ 252.0	$ 424.0