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Income Taxes (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jan. 02, 2011
Apr. 01, 2012
Apr. 03, 2011
Income Taxes      
Effective tax rate (as a percent)   34.60% 32.80%
Tax benefit from research and experimentation credits, as a result of the retroactive extension $ 1.2