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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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- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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