Income Taxes (Reconciliation Of Federal Statutory Tax Rate To Our Effective Tax Rate) (Details) | 12 Months Ended | ||
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Sep. 30, 2011 | Sep. 24, 2010 | Sep. 25, 2009 | |
| Income Taxes [Abstract] | |||
| Federal statutory rate | 35.00% | 35.00% | 35.00% |
| State income taxes, net of federal effect | 4.70% | 3.20% | 3.30% |
| Stock-based compensation expense rate | 0.30% | (0.10%) | (0.10%) |
| Research and development tax credits | (1.60%) | (0.80%) | (1.50%) |
| Tax exempt interest | (0.30%) | (0.40%) | (0.80%) |
| U.S. manufacturing tax incentives | (1.90%) | (1.80%) | (1.60%) |
| Foreign rate differential | (4.60%) | (0.10%) | (0.10%) |
| Foreign reversal of deferred tax liabilities | (2.50%) | ||
| Other | 0.40% | 0.20% | |
| Effective tax rate | 29.50% | 35.20% | 34.20% |
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- Definition Foreign earnings indefinitely reinvested.
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- Definition A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the deduction for qualified production activities received under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to differences in the deductibility or nondeductibility of incentive stock options and other equity-based compensation costs in accordance with generally accepted accounting principles and enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to all other items not otherwise listed in the existing taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the state and local income tax expense or benefit, net of the federal tax benefit (expense) thereon, recorded during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by research tax credits generated or utilized under enacted tax laws during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to income that is exempt from income taxes under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to foreign income tax settlements during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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