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Business Segments and Geographic Information - Revenues by Geography (Detail)
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3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
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Mar. 30, 2013
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Mar. 24, 2012
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Mar. 30, 2013
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Mar. 24, 2012
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| Schedule Of Geographical Segments [Line Items] | ||||
| Revenues | 100.00% | 100.00% | 100.00% | 100.00% |
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United States [Member]
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| Schedule Of Geographical Segments [Line Items] | ||||
| Revenues | 75.00% | 75.00% | 74.00% | 75.00% |
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Europe [Member]
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| Schedule Of Geographical Segments [Line Items] | ||||
| Revenues | 12.00% | 11.00% | 14.00% | 12.00% |
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Asia [Member]
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| Schedule Of Geographical Segments [Line Items] | ||||
| Revenues | 9.00% | 8.00% | 8.00% | 8.00% |
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All others [Member]
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| Schedule Of Geographical Segments [Line Items] | ||||
| Revenues | 4.00% | 6.00% | 4.00% | 5.00% |