Note E - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 24, 2022	Sep. 25, 2021
Property, plant and equipment, at cost	$ 860,050	$ 757,242
Less accumulated depreciation and amortization	524,683	490,055
Property, plant and equipment, net	335,367	267,187
Land [Member]
Property, plant and equipment, at cost	3,714	2,494
Building [Member]
Property, plant and equipment, at cost	$ 34,232	26,582
Building [Member] \| Minimum [Member]
Property, plant and equipment, estimated useful life (Year)	15 years
Building [Member] \| Maximum [Member]
Property, plant and equipment, estimated useful life (Year)	39 years 6 months
Machinery and Equipment [Member]
Property, plant and equipment, at cost	$ 374,566	343,716
Machinery and Equipment [Member] \| Minimum [Member]
Property, plant and equipment, estimated useful life (Year)	5 years
Machinery and Equipment [Member] \| Maximum [Member]
Property, plant and equipment, estimated useful life (Year)	20 years
Equipment [Member]
Property, plant and equipment, at cost	$ 274,904	258,624
Equipment [Member] \| Minimum [Member]
Property, plant and equipment, estimated useful life (Year)	5 years
Equipment [Member] \| Maximum [Member]
Property, plant and equipment, estimated useful life (Year)	7 years
Transportation Equipment [Member]
Property, plant and equipment, at cost	$ 11,685	10,315
Property, plant and equipment, estimated useful life (Year)	5 years
Office Equipment [Member]
Property, plant and equipment, at cost	$ 45,865	34,648
Office Equipment [Member] \| Minimum [Member]
Property, plant and equipment, estimated useful life (Year)	3 years
Office Equipment [Member] \| Maximum [Member]
Property, plant and equipment, estimated useful life (Year)	5 years
Improvements [Member]
Property, plant and equipment, at cost	$ 49,331	45,578
Improvements [Member] \| Minimum [Member]
Property, plant and equipment, estimated useful life (Year)	5 years
Improvements [Member] \| Maximum [Member]
Property, plant and equipment, estimated useful life (Year)	20 years
Construction in Progress [Member]
Property, plant and equipment, at cost	$ 65,753	$ 35,285

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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