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SEGMENT INFORMATION (Operating information by segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 27, 2015 | Jun. 28, 2014 | Jun. 27, 2015 | Jun. 28, 2014
Net revenue: |  |  |  |
Net revenue | $ 164,634 | $ 180,517 | $ 417,299 | $ 373,836
Cost of sales : |  |  |  |
Cost of sales | 87,063 | 95,360 | 216,424 | 192,642
Gross profit : |  |  |  |
Gross profit | 77,571 | 85,157 | 200,875 | 181,194
Operating expenses: |  |  |  |
Operating expenses | 61,485 | 53,573 | 165,272 | 141,707
Income from operations: |  |  |  |
Income from operations | 16,086 | 31,584 | 35,603 | 39,487
Equipment [Member] |  |  |  |
Net revenue: |  |  |  |
Net revenue | 148,987 | 165,013 | 369,759 | 325,770
Income from operations: |  |  |  |
Income from operations | 12,849 | 27,804 | 24,602 | 26,217
Expendable Tools [Member] |  |  |  |
Net revenue: |  |  |  |
Net revenue | 15,647 | 15,504 | 47,540 | 48,066
Income from operations: |  |  |  |
Income from operations | $ 3,237 | $ 3,780 | $ 11,001 | $ 13,270

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