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Income Taxes
 9 Months Ended
Sep. 30, 2022
Income Tax Disclosure [Abstract]  
Taxes Income Taxes
For interim periods, accounting standards require that income tax expense be determined by applying the estimated annual effective income tax rate to year-to-date results, unless this method does not result in a reliable estimate of year-to-date income tax expense. Each period, the income tax accrual is adjusted to the latest estimate and the difference from the previously accrued year-to-date balance is adjusted to the current quarter.
For the nine months ended September 30, 2022, our income tax provision was $29.3 million as compared to a benefit of $13.8 million in the same period in 2021. Our effective tax rate for the nine months ended September 30, 2022 was 36.1%, which varied from the U.S. federal statutory tax rate of 21.0% primarily due to adjustments in tax positions under audit related to the disallowance of a previously taken federal tax credits based upon interpretation of the law, the effects of state taxes, and nondeductible compensation. Our effective tax rate for the nine months ended September 30, 2021 was 26.8%, which varied from the U.S. federal statutory tax rate of 21.0% primarily due to the effects of state taxes and nondeductible compensation.