The Company and Its Significant Accounting Policies Share-Based Compensation (Details) |
12 Months Ended | ||
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Sep. 25, 2011 |
Sep. 26, 2010 |
Sep. 27, 2009 |
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| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] | |||
| Volatility | 30.80% | 33.80% | 42.70% |
| Risk-free interest rate | 2.10% | 2.50% | 2.60% |
| Dividend yield | 1.50% | 1.50% | 1.50% |
| Post-vest forfeiture rate | 9.80% | 9.80% | 9.20% |
| Suboptimal exercise factor | 1.8 | 1.8 | 1.9 |
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- Definition Represents the rate at which stock options are expected to be forfeited by employees subsequent to their vest dates.
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- Definition Represents the ratio by which the stock price must increase over the exercise price before employees are expected to exercise their stock options.
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The range of expected volatilities used and the weighted-average expected volatility for an entity using a valuation technique with different volatilities during the contractual term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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.
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