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INCOME TAXES
3 Months Ended
Apr. 02, 2017
Income Tax Disclosure [Abstract]  
Income Taxes
INCOME TAXES

Our tax provision or benefit from income taxes for interim periods is determined using an estimate of our annual effective tax rate, adjusted for discrete items, if any, that are taken into account in the relevant period. Each quarter we update our estimate of the annual effective tax rate, and if our estimated tax rate changes, we make a cumulative adjustment. Our quarterly tax provision and our quarterly estimate of our annual effective tax rate are subject to variation due to several factors, including variability in accurately predicting our pre-tax and taxable income and loss and the mix of jurisdictions to which they relate, tax credits, audit developments, changes in law, regulations and administrative practices, and relative changes of expenses or losses for which tax benefits are not recognized. Additionally, our effective tax rate can be more or less volatile based on the amount of pre-tax income. For example, the impact of discrete items, tax credits, and non-deductible expenses on our effective tax rate is greater when our pre-tax income is lower. Except as required under U.S. tax law, we do not provide for U.S. taxes on undistributed earnings of our foreign subsidiaries since we consider those earnings to be permanently invested outside of the U.S.

Our effective tax rate for the thirteen weeks ended April 2, 2017 was 27.9%. The principal difference between the statutory federal income tax rate of 35.0% and our effective income tax rate results primarily from the federal Work Opportunity Tax Credit. This tax credit is designed to encourage employers to hire workers from certain targeted groups with higher than average unemployment rates. Other differences between the statutory federal income tax rate of 35.0% and our effective tax rate result from state and foreign income taxes, certain non-deductible expenses, and tax effects of share based compensation.