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Income Taxes | 9 Months Ended
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Sep. 30, 2018
Income Tax Disclosure [Abstract] |
Income Taxes | Income Taxes Our effective tax rate was 24.9% and 25.0% for the three and nine months ended September 30, 2018, respectively, and 32.9% and 36.6% for the three and nine months ended September 30, 2017, respectively. The decrease in our effective income tax rate was primarily due to the enactment of the Tax Cuts and Jobs Act in December 2017 (the "Tax Act"), which reduced the statutory U.S. corporate income tax rate from 35% to 21% effective January 1, 2018. Income tax expense during interim periods is based on our estimated annual effective income tax rate plus any discrete items that are recorded in the period in which they occur. Our tax rate is affected by discrete items that may occur in any given year, but may not be consistent from year to year. We have not completed our determination of the accounting implications of the Tax Act on our financial statements as of December 31, 2017. However, we reasonably estimated the effects of the Tax Act and recorded a provisional benefit in our financial statements as of December 31, 2017. The final adjustments may differ materially from the provisional amounts due to further updates or changes to estimates and assumptions utilized in our calculations, additional guidance issued by the U.S. Government, and related accounting policy decisions we may take as a result of the Tax Act. We will record any such adjustments in the period that they are identified over a one-year measurement period ending December 22, 2018.

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- Definition 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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 + Details
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