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Business Segments and Geographic Information - Revenues by Geography (Detail) | 3 Months Ended
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Dec. 29, 2018 | Dec. 30, 2017
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 100.00% | 100.00%
United States |  |
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 74.90% | 75.50%
Europe |  |
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 12.20% | 11.50%
Asia-Pacific |  |
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 8.40% | 8.70%
Rest of World |  |
Schedule Of Geographical Segments [Line Items] |  |
Revenues | 4.50% | 4.30%

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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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Namespace Prefix: |
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Period Type: |