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Basis Of Presentation (Details) - segment | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 01, 2016 | Dec. 26, 2014 | Sep. 30, 2016 | Sep. 25, 2015
Significant Accounting Policies [Line Items] |  |  |  |
Number of weeks in fiscal year | 14 years | 13 years |  | 52 years
Number of Operating Segments | 1 |  |  |
Scenario, Forecast [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Number of weeks in fiscal year |  |  | 53 years |

X
- Definition Duration of Fiscal Period + References No definition available. + Details
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- Definition Significant Accounting Policies [Line Items] + References No definition available. + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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- Details
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Period Type: |