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