Table of Contents Self-Insured Risks Income Taxes The Company self-insures certain risks consisting primarily of professional liability, auto liability, and employee medical, disability, and workers' compensation liability. Insurance coverage is obtained for catastrophic property and casualty exposures, including professional liability on a claims- made basis, and those risks required to be insured by law or contract. Most of these self-insured risks are in the U.S. Provisions for claims under the self-insured programs are made based on the Company's estimates of the aggregate liabilities for claims incurred, including estimated legal fees, losses that have occurred but have not been reported to the Company, and for adverse developments on reported losses. The estimated liabilities are calculated based on historical claims experience, the expected lives of the claims, and other factors considered relevant by management. Changes in these estimates may occur as additional information becomes available. The estimated liabilities for claims incurred under the Company's self-insured workers' compensation and employee disability programs are discounted at the prevailing risk-free interest rate for U.S. government securities of an appropriate duration. All other self-insured liabilities are undiscounted. At December 31, 2018 and 2017, accrued liabilities for self-insured risks totaled $29,078,000 and $22,854,000, respectively, including current liabilities of $15,246,000 and $13,407,000, respectively. The noncurrent liabilities are included in "Other noncurrent liabilities" on the Company's Consolidated Balance Sheets. The Company accounts for certain income and expense items differently for financial reporting and income tax purposes. Provisions for deferred taxes are made in recognition of these temporary differences. The most significant differences relate to accrued compensation, pension plans, self-insurance, and depreciation and amortization. For financial reporting purposes, the provision for income taxes is the sum of income taxes both currently payable and payable on a deferred basis. Currently payable income taxes represent the liability related to the income tax returns for the current year, while the net deferred tax expense or benefit represents the change in the balance of deferred income tax assets or liabilities as reported on the Company's Consolidated Balance Sheets that are not related to balances in "Accumulated other comprehensive loss." The changes in deferred income tax assets and liabilities are determined based upon changes in the differences between the basis of assets and liabilities for financial reporting purposes and the basis of assets and liabilities for income tax purposes, measured by the enacted statutory tax rates in effect for the year in which the Company estimates these differences will reverse. The Company must estimate the timing of the reversal of temporary differences, as well as whether taxable income in future periods will be sufficient to fully recognize any gross deferred tax assets. A valuation allowance is provided when it is deemed more-likely-than-not that some portion or all of a deferred tax asset will not be realized. In 2017, the Company estimated the impact of the Tax Cuts and Jobs Act (the "Tax Act") incorporating assumptions made based upon its current interpretation of the Tax Act and included them in its consolidated financial statements for the year ended December 31, 2017. The SEC Staff issued Staff Accounting Bulletin No. 118 (“SAB 118”) to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Tax Act. The Company recognized provisional tax impacts related to Transition Tax and revaluation of domestic deferred tax balances, and included those amounts in its consolidated financial statements for the year ended December 31, 2017. In the period ended December 31, 2018, the Company completed its accounting for the Tax Act in accordance with SAB 118. As a result, the Company recorded additional income tax expense of $3.6 million. This expense consisted of substantially all of the $7.0 million valuation allowance established against foreign tax credits and $0.1 million for the revaluation of deferred taxes, net of $3.5 million of Transition Tax release of uncertain tax positions and adjustments. The Company has completed the accounting for the Tax Act within the one year measurement period, as allowed under SAB 118. Other factors which influence the effective tax rate used for financial reporting purposes include changes in enacted statutory tax rates, changes in tax law or policy, changes in the composition of taxable income from the countries in which it operates, the Company's ability to utilize net operating loss and tax credit carryforwards, and changes in unrecognized tax benefits. See Note 8, "Income Taxes" for further discussion. Topic 740, No. 5,  Accounting for Global Intangible Low-Taxed Income , states that an entity can make an accounting policy election to either recognize deferred taxes for temporary basis differences expected to reverse as GILTI in future years or to provide for the tax expense related to GILTI in the year the tax is incurred as a period expense only. At December 31, 2018, the Company has elected to account for GILTI in the year the tax is incurred. 65