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Income Taxes
3 Months Ended
Apr. 01, 2012
Income Tax Disclosure [Abstract]  
Income Taxes
Income Taxes

The effective tax rate for the three months ended April 1, 2012 was 34.9%, slightly lower than the U.S. federal statutory rate of 35%. The Company’s effective tax rate varies from the U.S statutory tax rate due to the change in the mix of earnings in tax jurisdictions with different statutory rates, benefits related to tax credits, and the tax impact of non-deductible expenses and other permanent differences between income before income taxes and taxable income.