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Business Segments and Geographic Information - Revenues by Geography (Detail) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 27, 2015 | Jun. 28, 2014 | Jun. 27, 2015 | Jun. 28, 2014
Schedule Of Geographical Segments [Line Items] |  |  |  |
Revenues | 100.00% | 100.00% | 100.00% | 100.00%
United States |  |  |  |
Schedule Of Geographical Segments [Line Items] |  |  |  |
Revenues | 77.80% | 75.70% | 75.80% | 74.80%
Europe |  |  |  |
Schedule Of Geographical Segments [Line Items] |  |  |  |
Revenues | 11.30% | 12.50% | 12.20% | 13.90%
Asia-Pacific |  |  |  |
Schedule Of Geographical Segments [Line Items] |  |  |  |
Revenues | 7.90% | 8.00% | 8.50% | 7.40%
All others |  |  |  |
Schedule Of Geographical Segments [Line Items] |  |  |  |
Revenues | 3.00% | 3.80% | 3.50% | 3.90%

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- Definition Percentage of revenues. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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