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Summary Of Significant Accounting Policies (Research And Development) (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2016 | Oct. 02, 2015 | Oct. 03, 2014
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Amount Capitalized Related to Software Development | $ 31,572 | $ 26,487 |
Accumulated Amortization | $ 14,597 | 11,858 |
Minimum [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Expected Life | 4 years |  |
Maximum [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Expected Life | 15 years |  |
Computer Software, Intangible Asset [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Amortization Expense Related to Capitalized Software | $ 2,738 | $ 2,535 | $ 2,045
Computer Software, Intangible Asset [Member] | Minimum [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Expected Life | 3 years |  |
Computer Software, Intangible Asset [Member] | Maximum [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Expected Life | 7 years |  |

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