STOCKHOLDERS' EQUITY AND NONCONTROLLING INTERESTS - Noncontrolling interests (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Apr. 01, 2016	Apr. 03, 2015	Apr. 01, 2016	Apr. 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		$ (12)	$ 0	(27)	$ 0
Balance at end of period		1,693,539		1,693,539
Increase (Decrease) in Temporary Equity [Roll Forward]
Balance at beginning of period				0
Net earnings (loss) attributable to noncontrolling interests				122
Reclassification of noncontrolling interests in MeVis to redeemable noncontrolling interests				10,382
Temporary Equity, Other Changes				(173)
Balance at end of period		10,331		10,331
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period				14,744
Net earnings (loss) attributable to noncontrolling interests				(95)
Reclassification of noncontrolling interests in MeVis to redeemable noncontrolling interests				(10,382)
Other				(499)
Balance at end of period		$ 3,768		$ 3,768

[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.