INCOME TAXES (Net deferred tax balance) (Details) - USD ($) $ in Thousands	Sep. 28, 2019	Sep. 29, 2018
Income Tax Disclosure [Abstract]
Accruals and reserves	$ 5,514	$ 6,652
Tax credit carryforwards	23,448	4,532
Net operating loss carryforwards	36,050	39,856
Deferred Tax Assets, Gross	65,012	51,040
Valuation allowance	(58,411)	(37,249)
Deferred tax assets, net of valuation allowance	6,601	13,791
Taxes on undistributed foreign earnings	(24,542)	(21,988)
Fixed and intangible assets	(7,704)	(8,377)
Deferred tax liabilities	(32,246)	(30,365)
Net deferred tax liabilities	(25,645)	(16,574)
Deferred tax assets	6,409	9,017
Deferred tax liabilities	$ (32,054)	$ (25,591)