Significant Accounting Policies Revenue Recognition (Details) |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2018 |
Sep. 24, 2017 |
Sep. 25, 2016 |
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| Sales Revenue, Services, Net [Member] | |||
| Revenue from External Customer [Line Items] | |||
| Percentage of total (less than) | 10.00% | 10.00% | 10.00% |
| Minimum [Member] | |||
| Revenue from External Customer [Line Items] | |||
| Estimated period of license benefit over which license fees are recognized | 5 years | ||
| Maximum [Member] | |||
| Revenue from External Customer [Line Items] | |||
| Estimated period of license benefit over which license fees are recognized | 15 years | ||
| X | ||||||||||
- Definition Period of time a typical license will produce benefits and maintain value, over which license fees are recognized. No definition available.
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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