Significant Customers (Details) - U.S. Government - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 26, 2022	Jun. 27, 2021	Jun. 26, 2022	Jun. 27, 2021
Revenue, Major Customer [Line Items]
Sales to the U.S. Government, amount	$ 156.1	$ 146.2	$ 295.7	$ 288.4
Government contracts | Revenue
Revenue, Major Customer [Line Items]
Sales to the U.S. Government, percentage of total revenue (percent)	70.00%	71.00%	70.00%	72.00%