Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 26, 2020	Jun. 28, 2019	Jun. 26, 2020	Jun. 28, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 24,078	$ 36,550	$ 98,061	$ 93,054
Other comprehensive (loss) income, net of tax:
Change in foreign currency translation adjustment	2,252	(610)	1,132	(2,404)
Change in unrecognized loss related to pension benefit plans	216	20	649	60
Total other comprehensive income (loss)	2,468	(590)	1,781	(2,344)
Comprehensive income	$ 26,546	$ 35,960	$ 99,842	$ 90,710