INCOME TAXES (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended			24 Months Ended
	Mar. 30, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017	Sep. 28, 2019	Oct. 01, 2016
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Operating Loss Carryforwards, Foreign			$ 110,600			$ 110,600
Excess tax benefits from stock based compensation					$ (4,392)
Operating Loss Carryforwards [Line Items]
Statutory tax rate		35.00%	21.00%
Tax Cuts And Jobs Act, income tax expense (benefit)			$ 9,400			114,000
Tax Cuts And Jobs Act, re-measurement of deferred taxes and liabilities, income tax expense			5,500	$ 2,800
Tax Cuts And Jobs Act, reassessment of undistributed foreign earnings no longer deemed to be to be indefinitely reinvested outside of U.S.	$ 700					1,800
Tax Cuts And Jobs Act, tax for accumulated foreign earnings						111,200
Tax incentive arrangement, benefit to income tax provision			$ 5,000	$ 20,400	$ 23,300
Tax incentive arrangement, benefit to income tax provision, earnings per share impact (in dollars per share)			$ 0.08	$ 0.29	$ 0.33
Remeasurement of deferred taxes			$ 5,480	$ 2,760	$ 0
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions			523	506	882
Unrecognized Tax Benefits		$ 13,038	12,925	13,038	12,062	12,925	$ 7,453
Deferred Tax Assets, Operating Loss Carryforwards, State and Local			146,500			146,500
U.S. one-time transition tax			9,369	101,854	$ 0
Unrecognized tax benefit that if recognized would impact effective tax rate			13,100			13,100
Unrecognized tax benefits, accrued interest and penalties			1,400			1,400
Deferred Tax Assets, Operating Loss Carryforwards, Domestic			$ 7,800			$ 7,800
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					0.00%
Maximum [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforward, Foreign, Statute Of Limitions			6 years
Pennsylvania Tax Law [Member]
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, State and Local		$ 0		$ 0	$ 4,000		$ 4,000