Employee Stock Plans - Schedule of Stock-Based Compensation Expense Included in Condensed Consolidated Statements of Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 25, 2026	Sep. 26, 2025	Sep. 25, 2026	Sep. 26, 2025
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	$ 7.6	$ 4.4	$ 17.2	$ 14.4
Income Statement Location: us-gaap:CostOfRevenue
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	0.9	0.4	2.6	1.1
Income Statement Location: us-gaap:GeneralAndAdministrativeExpense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	5.7	3.5	12.4	11.6
Income Statement Location: us-gaap:ResearchAndDevelopmentExpense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	0.3	0.1	0.6	0.4
Income Statement Location: us-gaap:SellingAndMarketingExpense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	$ 0.7	$ 0.4	$ 1.6	$ 1.3