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BASIS OF PRESENTATION (Recent Accounting Pronouncements) (Narrative) (Details) - USD ($) $ in Thousands		12 Months Ended
	Sep. 29, 2019	Sep. 29, 2020	Oct. 03, 2020	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017	Dec. 01, 2013
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting changes				$ (769)	$ 534	$ 5,420
Operating lease liability			$ 24,228
Operating right-of-use assets			22,688	0
Decrease financing obligation			$ 0	(14,207)			$ (20,000)
Retained earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting changes				$ (769)	$ 534	$ 4,006
Scenario, Forecast [Member] | Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liability	$ 23,800
Operating right-of-use assets	22,200
Decrease financing obligation	14,500
Decrease property, plant and equipment	15,300	$ 15,300
Scenario, Forecast [Member] | Accounting Standards Update 2016-02 [Member] | Retained earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting changes	$ 800

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Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
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Amount of increase (decrease) of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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