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Business Segments and Geographic Information - Revenues by Geography (Detail) | 3 Months Ended
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Dec. 26, 2015 | Dec. 27, 2014
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 100.00% | 100.00%
United States |  |
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 78.40% | 74.00%
Europe |  |
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 10.00% | 13.60%
Asia-Pacific |  |
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 7.90% | 8.70%
All others |  |
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 3.70% | 3.70%

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- Definition Percentage of revenues. + References No definition available. + Details
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- Definition Schedule Of Geographical Segments [Line Items] + References No definition available. + Details
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- Details
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X
- Details
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X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

X
- Details
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