Debt and Credit Facilities - Unamortized Debt Issuance Costs (Details) - USD ($) $ in Millions	Sep. 26, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Debt issuance costs	$ 11.4	$ 14.6
Convertible senior notes due 2028 | Convertible Debt
Debt Instrument [Line Items]
Debt issuance costs	8.4	10.5
Convertible senior notes due 2025 | Convertible Debt
Debt Instrument [Line Items]
Debt issuance costs	0.0	0.3
2028 Term Loan
Debt Instrument [Line Items]
Debt issuance costs	2.4	3.0
2028 Euro Term Loan
Debt Instrument [Line Items]
Debt issuance costs	$ 0.6	$ 0.8