Significant Customers (Details) - U.S. Government - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2023	Sep. 25, 2022	Oct. 01, 2023	Sep. 25, 2022
Revenue, Major Customer [Line Items]
Sales to the U.S. Government, amount	$ 185.5	$ 158.1	$ 524.4	$ 453.8
Revenue | Government Contracts
Revenue, Major Customer [Line Items]
Sales to the U.S. Government, percentage of total revenue (as percent)	68.00%	69.00%	69.00%	70.00%