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Summary Of Significant Accounting Policies (Foreign Operations And Related Derivative Financial Instruments) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Oct. 02, 2015	Oct. 03, 2014
Foreign Currencies [Line Items]
Currency gains from transactions	$ 277		$ 427
Currency losses from transactions		$ 1,196
Percent Of Revenues In Foreign Currency	17.00%
Percent Of Revenues In Other Foreign Currencies	4.00%
Euro [Member]
Foreign Currencies [Line Items]
Percent Of Revenues In Foreign Currency	7.00%
Canadian Dollars [Member]
Foreign Currencies [Line Items]
Percent Of Revenues In Foreign Currency	6.00%

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Amount before tax of foreign currency transaction realized and unrealized gain recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=64836518&loc=d3e30690-110894

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64836518&loc=d3e30700-110894

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=64836518&loc=d3e30690-110894

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-Name Accounting Standards Codification
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895

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