Debt and Credit Facilities - Interest Expense (Details) - Convertible Debt - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2024	Sep. 29, 2023	Sep. 27, 2024	Sep. 29, 2023
Debt Instrument [Line Items]
Total interest expense	$ 3.7	$ 4.2	$ 11.3	$ 11.8
Convertible senior notes due 2028
Debt Instrument [Line Items]
Contractual interest expense:	2.2	1.2	6.6	1.2
Amortization of debt issuance costs:	0.7	0.3	2.1	0.3
Convertible senior notes due 2025
Debt Instrument [Line Items]
Contractual interest expense:	0.7	2.3	2.1	8.4
Amortization of debt issuance costs:	$ 0.1	$ 0.4	$ 0.5	$ 1.9