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Note E - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Sep. 30, 2017 | Sep. 24, 2016
Property, plant and equipment, at cost | $ 653,889 | $ 605,045
Less accumulated depreciation and amortization | 426,308 | 420,832
Property, plant and equipment, net | 227,581 | 184,213
Land [Member] |  |
Property, plant and equipment, at cost | 2,482 | 2,512
Building [Member] |  |
Property, plant and equipment, at cost | $ 26,741 | 26,741
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 182 days |
Machinery and Equipment [Member] |  |
Property, plant and equipment, at cost | $ 257,172 | 227,614
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 | $ 278,860 | 278,299
Equipment [Member] | Minimum [Member] |  |
Property, plant and equipment, estimated useful life (Year) |  |
Equipment [Member] | Maximum [Member] |  |
Property, plant and equipment, estimated useful life (Year) | 7 years |
Transportation Equipment [Member] |  |
Property, plant and equipment, at cost | $ 8,449 | 7,637
Property, plant and equipment, estimated useful life (Year) | 5 years |
Office Equipment [Member] |  |
Property, plant and equipment, at cost | $ 25,302 | 22,136
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 | $ 38,003 | 34,750
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 | $ 16,880 | $ 5,356

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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- Definition 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. + References No definition available. + Details
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