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Income Taxes
3 Months Ended
Mar. 30, 2013
Income Tax Disclosure [Abstract]  
Income Taxes
Income Taxes

The provision for income taxes for continuing operations for the three months ended March 30, 2013, reflects an effective tax rate of (113.0) percent compared to 36.0 percent for the same period last year. First quarter 2013 reflects the effect of a retroactive extension of the 2012 research tax credit of $0.9 million. The 2013 estimated annual effective tax rate is expected to be 35.0 percent.