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INCOME TAXES (Effective income tax rate reconciliation) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Sep. 29, 2018	Sep. 30, 2017	Oct. 01, 2016
Income Tax Disclosure [Abstract]
Computed income tax expense based on U.S. statutory rate									$ 43,568	$ 41,358	$ 19,658
Effect of earnings of foreign subsidiaries subject to different tax rates									(12,947)	(22,832)	(7,584)
Benefits from foreign approved enterprise zones									(20,429)	(23,294)	(8,701)
Benefits from research and development tax credits									(2,785)	(1,859)	(2,839)
Benefits from foreign tax credits									(3,939)	(26,119)	0
Provisional estimate for the one-time U.S. transition tax, net of uncertain tax positions and foreign tax credits									101,854	0	0
Remeasurement of net U.S. deferred tax assets to reflect a reduction in the U.S. federal corporate tax rate									2,760	0	0
Change in permanent reinvestment assertion									0	0	(9,696)
Tax impact on restructuring									0	0	4,238
Tax audit settlement									0	0	4,889
Effect of permanent items									(758)	778	(2,274)
Non-deductible goodwill impairment									0	8,805	0
Deferred taxes not benefited									7,366	6,458	3,585
Foreign operations (withholding taxes, deferred taxes on unremitted earnings, US taxation of foreign earnings)									5,746	6,039	4,981
Reserve for uncertain tax positions									530	2,936	208
State income tax expense (net of federal benefit)									56	60	996
Other, net									(278)	276	248
Provision for income taxes	$ (1,750)	$ 7,282	$ 4,800	$ 110,412	$ 2,539	$ (17,657)	$ 5,151	$ 2,573	$ 120,744	$ (7,394)	$ 7,709

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