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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Research And Development) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 29, 2017	Sep. 30, 2016	Oct. 02, 2015
Finite-Lived Intangible Assets [Line Items]
Gross amount capitalized related to software development	$ 34,528	$ 31,572
Accumulated amortization	$ 18,040	14,597
Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life (years)	4 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life (years)	15 years
Computer Software, Intangible Asset
Finite-Lived Intangible Assets [Line Items]
Amortization expense related to capitalized software	$ 3,444	$ 2,738	$ 2,535
Computer Software, Intangible Asset | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life (years)	3 years
Computer Software, Intangible Asset | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life (years)	7 years

X

- Definition

For each balance sheet presented, the amount of accumulated amortization for capitalized computer software costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount of expense for amortization of capitalized computer software costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128487-111756

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-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
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Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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