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SEGMENT INFORMATION (Operating information by segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jul. 02, 2016 | Jun. 27, 2015 | Jul. 02, 2016 | Jun. 27, 2015
Net revenue: |  |  |  |
Net revenue | $ 216,414 | $ 164,634 | $ 481,348 | $ 417,299
Cost of sales : |  |  |  |
Cost of sales | 116,374 | 87,063 | 261,240 | 216,424
Gross profit : |  |  |  |
Gross profit | 100,040 | 77,571 | 220,108 | 200,875
Operating expenses: |  |  |  |
Operating expenses | 61,418 | 61,485 | 171,482 | 165,272
Income from operations: |  |  |  |
Income from operations | 38,622 | 16,086 | 48,626 | 35,603
Equipment [Member] |  |  |  |
Net revenue: |  |  |  |
Net revenue | 200,128 | 148,987 | 434,164 | 369,759
Income from operations: |  |  |  |
Income from operations | 34,676 | 12,849 | 35,966 | 24,602
Expendable Tools [Member] |  |  |  |
Net revenue: |  |  |  |
Net revenue | 16,286 | 15,647 | 47,184 | 47,540
Income from operations: |  |  |  |
Income from operations | $ 3,946 | $ 3,237 | $ 12,660 | $ 11,001

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