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Income Taxes	3 Months Ended
Income Taxes	Mar. 29, 2013
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s effective tax rate (“ETR”) is calculated quarterly based upon current assumptions relating to the full year’s estimated operating results and various tax-related items. The Company’s normal annual ETR typically ranges from 38% to 40% of pre-tax income. The 2013 first quarter ETR was 33.2% and the 2012 first quarter ETR was 39.4%. The ETR was lower in the 2013 first quarter as compared with 2012 primarily due to the Company recording a tax benefit for its research and development activities for all of 2012 in the 2013 first quarter, as required under current accounting guidelines, as the legislation extending the tax credit related to these expenses, the American Taxpayer Relief Act of 2012, was not passed by the U.S. federal government until January 2013.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

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+ Details