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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%

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