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Segments (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 03, 2015 | Jul. 04, 2015 | Apr. 04, 2015 | Jan. 03, 2015 | Sep. 27, 2014 | Jun. 28, 2014 | Mar. 29, 2014 | Dec. 28, 2013 | Oct. 03, 2015 | Sep. 27, 2014 | Sep. 28, 2013
Revenue, Major Customer and Product Lines |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 623,224 | $ 634,539 | $ 637,246 | $ 630,523 | $ 671,424 | $ 683,698 | $ 649,878 | $ 643,385 | $ 2,525,532 | $ 2,648,385 | $ 2,610,311
Percentage of aftermarket sale in both military and commercial production segment |  |  |  |  |  |  |  |  | 30.00% | 32.00% | 32.00%
Sales Arising From Government Prime Or Sub Contracts Including Military Sales |  |  |  |  |  |  |  |  | $ 780,259 | $ 763,004 | $ 807,728
Boeing |  |  |  |  |  |  |  |  |  |  |
Revenue, Major Customer and Product Lines |  |  |  |  |  |  |  |  |  |  |
Sales to Boeing and Boeing Commercial Airplanes |  |  |  |  |  |  |  |  | $ 399,082 | $ 431,148 | $ 366,972
Percentage of sales to Boeing |  |  |  |  |  |  |  |  | 16.00% | 16.00% | 14.00%
Boeing Commercial Airplanes |  |  |  |  |  |  |  |  |  |  |
Revenue, Major Customer and Product Lines |  |  |  |  |  |  |  |  |  |  |
Sales to Boeing and Boeing Commercial Airplanes |  |  |  |  |  |  |  |  | $ 240,984 | $ 243,114 | $ 195,100
SensorsAndHandpieces [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue, Major Customer and Product Lines |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 25,079 | $ 24,763 | $ 23,144

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