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Income Taxes
9 Months Ended
Sep. 29, 2013
Income Tax Disclosure [Abstract]  
Income Taxes
Income Taxes

The Company’s effective tax rate may vary from the U.S. federal 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. The effective tax rates for the three and nine months ended September 29, 2013 were 15.6% and (14.6)%, respectively. For the three months ended September 29, 2013, the variance from the U.S. federal statutory tax rate of 35% was primarily attributable to the tax impact of the impairment charge for identifiable intangible assets, foreign earnings taxed at rates lower than the U.S. federal statutory tax rate, and favorable adjustments related to prior year tax returns filed in various jurisdictions which were recorded as discrete items. For the nine months ended September 29, 2013, the variance from the U.S. federal statutory tax rate was primarily attributable to the tax treatment of the Syntrix legal contingency, which was recorded as a discrete item and is nondeductible for tax purposes until paid.

In May 2013, the Internal Revenue Service began an audit of the Company’s corporate income tax return filed for fiscal year 2011. The audit continues to be in the information gathering stage.