Debt and Credit Facilities - Components Of Debt (Details) - USD ($) $ in Millions	Sep. 26, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Total debt	$ 1,445.4	$ 1,394.3
Less: current portion	0.0	(116.0)
Long-term debt	1,445.4	1,278.3
Senior term loan facility due 2028 (the “2028 Term Loan”)
Debt Instrument [Line Items]
Total debt	427.6	427.0
Senior euro term loan facility due 2028 (the “2028 Euro Term Loan”)
Debt Instrument [Line Items]
Total debt	409.0	361.6
Convertible senior notes due 2028 \| Convertible Debt
Debt Instrument [Line Items]
Total debt	491.8	489.7
Convertible senior notes due 2025 \| Convertible Debt
Debt Instrument [Line Items]
Total debt	0.0	116.0
Revolving credit facility due 2024 \| Revolving Credit Facility
Debt Instrument [Line Items]
Total debt	$ 117.0	$ 0.0

Amount of debt and lease obligation, classified as current.

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