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Income Taxes (Reconciliation Of Unrecognized Tax Benefits, Excluding Interest And Penalties) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2017 | Oct. 01, 2016
Income Tax Disclosure [Abstract] |  |
Balance at beginning of year | $ 498 | $ 1,184
Reductions as a result of lapse of statue of limitations | (498) | (686)
Balance at end of year | $ 0 | $ 498

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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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- Definition Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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