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Segments (Narrative) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Sep. 27, 2014 | Sep. 28, 2013 | Sep. 29, 2012
Revenue, Major Customer [Line Items] |  |  |
Percentage of aftermarket sale in commercial production segment | 32.00% | 32.00% | 34.00%
Sales arising from U.S. Government prime or sub-contracts, including military sales to Boeing | $ 763,004 | $ 807,728 | $ 737,980
Boeing [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Sales to Boeing and Boeing Commercial Airplanes | 431,148 | 366,972 | 263,060
Percentage of sales to Boeing | 16.00% | 14.00% | 11.00%
Boeing Commercial Airplanes [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Sales to Boeing and Boeing Commercial Airplanes | $ 243,114 | $ 195,100 | $ 131,318

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