Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Thousands	Mar. 30, 2024	Sep. 30, 2023
Property, Plant and Equipment [Abstract]
Land	$ 31,826	$ 31,417
Buildings and improvements	675,578	646,079
Machinery and equipment	864,832	827,257
Computer equipment and software	229,027	228,284
Property, plant and equipment, at cost	1,801,263	1,733,037
Less accumulated depreciation and amortization	(931,960)	(918,341)
Property, plant and equipment, net	$ 869,303	$ 814,696