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Income Taxes (Schedule Of Tax Effects Of Temporary Differences That Generated Deferred Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified | Sep. 27, 2014 | Sep. 28, 2013
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Income Tax Disclosure [Abstract] |  |
Benefit accruals | $ 189,420 | $ 164,458
Inventory reserves | 31,270 | 29,873
Tax benefit carryforwards | 13,256 | 14,376
Contract loss reserves not currently deductible | 9,943 | 10,885
Other accrued expenses | 18,849 | 17,249
Total gross deferred tax assets | 262,738 | 236,841
Less valuation allowance | (5,316) | (4,006)
Total net deferred tax assets | 257,422 | 232,835
Differences in bases and depreciation of property, plant and equipment | 164,817 | 174,743
Pension | 70,124 | 55,157
Other | 486 | 216
Total gross deferred tax liabilities | 235,427 | 230,116
Net deferred tax assets | $ 21,995 | $ 2,719

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