INCOME TAXES (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Income Tax Disclosure [Abstract]
Tax Expense Related To Distributions From Earnings	$ 1,800	$ 1,000	$ 1,200
Change in permanent reinvestment assertion	(9,696)	(19,704)	0
Tax impact on restructuring	4,238	0	0
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries	570,900
Deferred Tax Liabilities, Undistributed Foreign Earnings	20,000
Undistributed Earnings Not Reinvested In Foreign Operations	400
Foreign Earnings Repatriated	200
Deferred Tax Assets, Gross, Noncurrent	16,800	3,200
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	97,000
Deferred Tax Assets, Tax Credit Carryforwards	10,900
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	6,200
Excess tax benefits from stock based compensation	197	540	(825)
Operating Loss Carryforwards [Line Items]
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions	994	5,231	394
Unrecognized Tax Benefits	7,453	7,101	7,192	$ 6,869
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	176,900
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	1,100
Operations In Singapore And Malaysia [Member]
Operating Loss Carryforwards [Line Items]
Income Tax Reconciliation, Tax Exempt Income	$ 8,500	$ 5,900	$ 17,400
Income Tax Reconciliation Foreign Income Tax Rate Differential Per Share	$ 0.12	$ 0.08	$ 0.23
Minimum [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforward, Foreign, Statute Of Limitions	4 years
Minimum [Member] | Operations In Singapore And Malaysia [Member]
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential			5.00%
Maximum [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforward, Foreign, Statute Of Limitions	6 years
Maximum [Member] | Operations In Singapore And Malaysia [Member]
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential	5.00%
Pennsylvania Tax Law [Member]
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	$ 5,000	$ 4,000	$ 4,000	$ 3,000