Supplemental Financial Information - Pension Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Condensed Financial Information [Abstract]
Interest cost	$ 1,092	$ 1,057	$ 3,276	$ 3,171
Expected return on plan assets	(2,122)	(1,944)	(6,366)	(5,832)
Amortization of prior loss	291	466	873	1,397
Net periodic benefit income	(739)	(421)	(2,217)	(1,264)
Amortization of prior loss, recognized in other comprehensive income	(291)	(466)	(873)	(1,397)
Total recognized in net periodic pension benefit income and other comprehensive income	$ (1,030)	$ (887)	$ (3,090)	$ (2,661)