Other Income (Expense), Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2020	Sep. 28, 2019	Sep. 29, 2018
Component of Other Income (Expense), Nonoperating [Line Items]
Other income (expense)	$ 3,441	$ (5,044)	$ (7,186)
Foreign exchange loss
Component of Other Income (Expense), Nonoperating [Line Items]
Other income (expense)	(3,486)	(5,774)	(11,286)
Gain on deferred compensation investments, net (Note 12)
Component of Other Income (Expense), Nonoperating [Line Items]
Other income (expense)	6,099	1,140	4,835
Other
Component of Other Income (Expense), Nonoperating [Line Items]
Other income (expense)	$ 828	$ (410)	$ (735)