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Income Taxes | 6 Months Ended
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Jun. 30, 2018
Income Taxes | 13. Income Taxes Our income tax provision represents federal, state, and international taxes on our income recognized for financial statement purposes, which includes the effect of temporary differences between financial statement income and income recognized for tax return purposes. Our income tax provision is negatively affected by the need for a valuation allowance against our deferred tax assets. We record a valuation allowance to reduce our deferred tax asset when it is more likely than not that all or a portion of the deferred tax asset will not be realized. In determining the requirement for a valuation allowance, we assess the available positive and negative evidence to estimate if sufficient future taxable income will be generated to utilize our deferred tax assets not already identified as requiring a valuation allowance. As of June 30, 2018, and December 31, 2017, we continued to record a full valuation allowance against our domestic deferred tax assets that are not offset by the reversal of deferred tax liabilities. In the future, if it is determined that we no longer have a requirement to record a valuation allowance against all or a portion of our deferred tax assets, the release of the valuation allowance would have a positive impact on our income tax provision. On December 22, 2017, the Tax Cut and Jobs Act legislation (the “Act”) was signed into law. The Act made broad and complex changes to the U.S. tax code including: (a) lower U.S. federal corporate income tax rate from 35% to 21% effective January 1, 2018, (b) accelerated expensing of qualified capital investments for a specific period, and (c) a transition from a worldwide tax system to a territorial tax system. ASC 740, Income Taxes, requires a company to record the effects of a tax law change in the period of enactment; however, shortly after enactment of the Tax Act, the SEC staff issued Staff Accounting Bulletin (“SAB”) 118, which allows a company to record a provisional amount when it does not have the necessary information available to complete its accounting for the change in the tax law. The FASB subsequently issued ASU 2018-05 to codify SAB 118 by amending ASC 740. ASU 2018-05 continues to allow a company to record a provisional amount when it does not have the necessary information available, prepared, or analyzed in reasonable detail to complete its accounting for the change in the tax law. The measurement period ends when the company has obtained, prepared, and analyzed the information necessary to finalize its accounting, but cannot extend beyond one year. We recorded income tax expense of $6.7 during the six months ended June 30, 2018. Included in this amount are the estimated impacts of requiring a current inclusion in U.S. federal income of certain earnings of controlled foreign corporations, allowing a domestic corporation an immediate deduction in the U.S. taxable income for a portion of its foreign-derived intangible income, and the base erosion anti-abuse tax. In January and April of 2018, the Internal Revenue Service (the “IRS”) issued guidance that provides additional clarification on certain aspects of the transition tax calculation. We did not record any change to our transition tax liability during the six months ended June 30, 2018. We are considering the additional IRS guidance as we continue to gather additional information related to the transition tax estimates and deferred tax estimates to more precisely compute the transition tax and remeasurement of deferred taxes. We anticipate additional IRS guidance relative to the impacts of the Act will be forthcoming throughout 2018. The total amount of unrecognized tax benefits as of June 30, 2018, and December 31, 2017, were $1.4, including $0.2 of accrued interest, and $1.5, including $0.4 of accrued interest, respectively. Of the total amount of unrecognized tax benefits as of June 30, 2018, $1.4 represents the amount that, if recognized, would favorably impact our effective income tax rate. It is reasonable to expect that the amount of unrecognized tax benefits will change in the next twelve months; however, we do not expect the change to have a significant impact on our results of operations or financial condition. We file income tax returns in the U.S. federal jurisdiction, various states, and foreign jurisdictions. With a few exceptions, we are no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years before 2014.

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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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