Significant Customers (Details) - U.S. Government - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 25, 2023	Jun. 30, 2024	Jun. 25, 2023
Revenue, Major Customer [Line Items]
Sales to the U.S. Government, amount	$ 195.4	$ 178.6	$ 386.3	$ 338.9
Revenue | Government contracts
Revenue, Major Customer [Line Items]
Sales to the U.S. Government, percentage of total revenue (as percent)	65.00%	70.00%	67.00%	69.00%