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Contingencies (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 02, 2021 | Sep. 26, 2020 | Sep. 28, 2013 | Dec. 31, 2020
Site Contingency [Line Items] |  |  |  |
Litigation Settlement, Amount Awarded from Other Party |  |  | $ 110,000 |
Environmental Costs Recovered | $ 45,000 |  |  |
Sales covered by the Iran Threat Reduction and Syria Human Rights Act of 2012 |  |  |  | $ 4,770
Proceeds from Legal Settlements | 12,477 | $ 2,369 |  |
Huntsville Site [Member] |  |  |  |
Site Contingency [Line Items] |  |  |  |
Environmental Remediation Expense To Date | 7,500 |  |  |
Additional Expected Project Expenditures Low Estimate | 2,900 |  |  |
Additional Expected Project Expenditures High Estimate | 11,000 |  |  |
Norco Site [Member] | Remediation, Project Management, Regulatory Oversight, and Investigative and Feasability Studies [Member] |  |  |  |
Site Contingency [Line Items] |  |  |  |
Environmental Remediation Expense To Date | 77,000 |  |  |
Additional Expected Project Expenditures Low Estimate | 4,400 |  |  |
Additional Expected Project Expenditures High Estimate | $ 17,000 |  |  |
Global ECS |  |  |  |
Site Contingency [Line Items] |  |  |  |
Foreign tax and other loss contingencies, net of taxes |  | $ 32,700 |  |

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