Long-Term Debt and Commitments, Summary of Long-Term Debt (Details) - USD ($) $ in Millions	6 Months Ended
	Jul. 04, 2021		Dec. 31, 2020		Feb. 14, 2017	Jun. 23, 2015
Long-Term Debt and Commitments [Abstract]
Long-term debt	$ 935.3		$ 934.2
Less: Current maturities	0.9	[1]	1.0	[2]
Total long-term debt	934.4	[1]	933.2	[2]
Term Loan Facility - Variable Tranche [Member]
Long-Term Debt and Commitments [Abstract]
Long-term debt	$ 537.4		535.6		$ 788.0	$ 1,078.0
Maturity date	Feb. 14, 2024
Unamortized discount and deferred financing costs	$ 10.6		12.4
Senior Notes due 2028 [Member]
Long-Term Debt and Commitments [Abstract]
Long-term debt	$ 394.2		393.9
Maturity date	Jun. 30, 2028
Unamortized deferred financing costs	$ 5.8		6.1
Netherlands Term Loan Due 2022 [Member]
Long-Term Debt and Commitments [Abstract]
Long-term debt	$ 0.3		0.6
Maturity date	Dec. 31, 2022
Japan Loan Facilities [Member]
Long-Term Debt and Commitments [Abstract]
Long-term debt	$ 3.4		$ 4.1

[1] Unaudited

[2] Condensed from audited financial statements