Income Taxes (Narrative) (Details) - USD ($) $ in Thousands		12 Months Ended
	Oct. 01, 2017	Oct. 03, 2020	Sep. 28, 2019	Sep. 29, 2018
Income Tax Examination [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%	21.00%	21.00%	24.50%
Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Income Tax Expense			$ 30,795
Tax Cuts and Jobs Act, Withholding Tax for Accumulated Foreign Earnings, Income Tax Expense		$ 1,513	1,317	$ 10,383
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability			10,946
Tax Cuts and Jobs Act, GILTI Tax		1,620	3,325
Tax Cuts and Jobs Act, Foreign Derived Intangible Income Deduction, Benefit		3,394	2,495
Tax Cuts and Jobs Act, Provision Adjustment to Return Foreign Tax Credit Utlization Adjustments Against GILTI, Benefit		3,749
Foreign Earnings Repatriated		23,001	103,227	$ 235,263
Capital Loss Carryforwards		5,000
State Loss Carryforwards		9,728
Decrease in Unrecognized Tax Benefits is Reasonably Possible		0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued		961	843
Unrecognized Tax Benefits, Interest on Income Taxes Expense		117	$ 134
Foreign Tax Authority
Income Tax Examination [Line Items]
Tax Credit Carryforward, Amount		30,517
Domestic Tax Authority
Income Tax Examination [Line Items]
Tax Credit Carryforward, Amount		1,184
State and Local Jurisdiction
Income Tax Examination [Line Items]
Tax Credit Carryforward, Amount		$ 3,764