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SEGMENT INFORMATION (Operating information by segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Net revenue:
Revenues	$ 340,163	$ 150,741	$ 608,020	$ 295,038
Income from operations:
Income from operations	83,114	11,076	137,156	24,490
Capital Equipment [Member]
Net revenue:
Revenues	288,446	113,222	511,535	215,546
Income from operations:
Income from operations	66,101	4,062	110,994	6,770
Aftermarket Products and Services (APS) [Member]
Net revenue:
Revenues	51,717	37,519	96,485	79,492
Income from operations:
Income from operations	$ 17,013	$ 7,014	$ 26,162	$ 17,720

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The net result for the period of deducting operating expenses from operating revenues.

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