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Income Taxes | 6 Months Ended
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Jun. 30, 2024
Income Tax Disclosure [Abstract] |
Income Taxes | 7. Income Taxes The effective income tax rate reflects the effect of federal and state income taxes on earnings and the impact of differences in book and tax accounting arising primarily from the permanent tax benefits associated with the statutory depletion deduction for mineral reserves. The effective income tax rates for continuing operations were 25.0% and 20.9% for the six months ended June 30, 2024 and 2023, respectively. The higher 2024 effective income tax rate versus 2023 was driven by the impact of the February 2024 divestiture of the South Texas cement business and certain related ready mixed concrete operations, which reflected the write off of certain nondeductible goodwill and was treated as a discrete tax event.

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