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Income Taxes | 3 Months Ended
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Mar. 31, 2026
Income Taxes |
Income Taxes | Note 8—Income Taxes ​ We are subject to tax liabilities imposed by multiple jurisdictions. We determine our best estimate of the annual effective tax rate at each interim period using expected annual pre-tax earnings, statutory tax rates and available tax planning opportunities. Certain significant or unusual items are separately recognized in the quarter in which they occur, which can cause variability in the effective tax rate from quarter to quarter. We recognize interest and penalties related to uncertain tax positions, if any, as an income tax expense. ​ The effective tax rate on income for the three months ended March 31, 2026, and 2025, was 12.6% and 29.0%, respectively. For the first three months of 2026, our tax rate differed from the U.S. federal statutory rate of 21.0%, primarily due to a discrete tax benefit for equity compensation paid in the quarter, partially offset by the impact of state income tax expense and nondeductible components of per diem expenses. For the first three months of 2025, our tax rate differed from the U.S. federal statutory rate of 21.0%, primarily due to the impact of state income tax expense and nondeductible components of per diem expenses. ​ Our U.S. federal income tax returns are generally no longer subject to examination for tax years before 2020. The statutes of limitation of state and foreign jurisdictions generally vary between three to five years. Accordingly, our state and foreign income tax returns are generally no longer subject to examination for tax years before 2020. ​ Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for temporary differences between the financial reporting bases and tax bases of assets and liabilities based on enacted tax rates expected to be in effect when such amounts are realized or settled. However, deferred tax assets are recognized only to the extent that it is more likely than not that they will be realized based upon consideration of available evidence, including future reversals of existing taxable temporary differences, future projected taxable income, the length of the tax asset carryforward periods and tax planning strategies. The effects of remeasurement of deferred tax assets and liabilities resulting from changes in tax rates are recognized in income in the period of enactment.

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