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Business Segments and Geographic Information - Revenues by Geography (Detail) | 3 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 26, 2015
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 100.00% | 100.00%
United States |  |
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 77.90% | 78.40%
Europe |  |
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 10.70% | 10.00%
Asia-Pacific |  |
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 8.40% | 7.90%
All others |  |
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 3.00% | 3.70%

X
- 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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