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Income Taxes
 3 Months Ended
Mar. 31, 2023
Income Taxes [Abstract]  
Income Taxes Note 6. Income Taxes

We are subject to taxation in the United States, various states and foreign jurisdictions. Substantially all of our income before income taxes for the three months ended March 31, 2023 and 2022 was generated in the United States.

We compute interim period income taxes by applying an anticipated annual effective tax rate to our year-to-date income or loss from operations before income taxes, except for significant unusual or infrequently occurring items. As a result, our estimated tax rate is adjusted each quarter. The effective tax rate on our income before income taxes was 25.2 percent and 51.1 percent for the three months ended March 31, 2023 and 2022, respectively. The decrease in our effective tax rate was primarily due to the impacts of share-based awards and state income taxes on limited pre-tax income in the prior year.