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Segments (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 01, 2016 | Jul. 02, 2016 | Apr. 02, 2016 | Jan. 02, 2016 | Oct. 03, 2015 | Jul. 04, 2015 | Apr. 04, 2015 | Jan. 03, 2015 | Oct. 01, 2016 | Oct. 03, 2015 | Sep. 27, 2014
Revenue, Major Customer and Product Lines |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 619,078 | $ 613,260 | $ 611,142 | $ 568,457 | $ 623,224 | $ 634,539 | $ 637,246 | $ 630,523 | $ 2,411,937 | $ 2,525,532 | $ 2,648,385
Percentage of aftermarket sale in both military and commercial production segment |  |  |  |  |  |  |  |  | 29.00% | 30.00% | 32.00%
Sales Arising From Government Prime Or Sub Contracts Including Military Sales |  |  |  |  |  |  |  |  | $ 726,562 | $ 780,259 | $ 763,004
Boeing |  |  |  |  |  |  |  |  |  |  |
Revenue, Major Customer and Product Lines |  |  |  |  |  |  |  |  |  |  |
Sales to Boeing and Boeing Commercial Airplanes |  |  |  |  |  |  |  |  | $ 346,596 | $ 399,082 | $ 431,148
Percentage of sales to Boeing |  |  |  |  |  |  |  |  | 14.00% | 16.00% | 16.00%
Boeing Commercial Airplanes |  |  |  |  |  |  |  |  |  |  |
Revenue, Major Customer and Product Lines |  |  |  |  |  |  |  |  |  |  |
Sales to Boeing and Boeing Commercial Airplanes |  |  |  |  |  |  |  |  | $ 251,288 | $ 240,984 | $ 243,114

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