STOCKHOLDERS' EQUITY AND NONCONTROLLING INTERESTS - Noncontrolling interests (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Jul. 01, 2016	Jul. 03, 2015	Jul. 01, 2016	Jul. 03, 2015
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	[1]			$ 1,726,344
Net earnings (loss) attributable to noncontrolling interests		$ (91)	$ (136)	(118)	$ (136)
Acquisition of Mevis				0	10,218
Capital contribution from noncontrolling interest holders				0	3,993
Balance at end of period		1,691,856		1,691,856
Increase (Decrease) in Temporary Equity [Roll Forward]
Balance at beginning of period				0	0
Net earnings (loss) attributable to noncontrolling interests				334	0
Acquisition of Mevis				0
Capital contribution from noncontrolling interest holders				0	0
Reclassification of noncontrolling interests in MeVis to redeemable noncontrolling interests				10,382	0
Other				(385)	0
Balance at end of period		10,331	0	10,331	0
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period				14,744	0
Net earnings (loss) attributable to noncontrolling interests				(216)	(136)
Reclassification of noncontrolling interests in MeVis to redeemable noncontrolling interests				(10,382)	0
Other				(499)	21
Balance at end of period		$ 3,647	$ 14,368	$ 3,647	$ 14,368

[1] The condensed consolidated balance sheet as of October 2, 2015 was derived from audited financial statements as of that date, but does not include all disclosures required by accounting principles generally accepted in the United States of America.