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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jan. 01, 2012	Jan. 02, 2011
Income Taxes
Effective tax rate (as a percent)	34.70%	31.10%
Tax benefit from research and experimentation credits, as a result of the retroactive extension		$ 1.2

- 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.

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