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Income Taxes
6 Months Ended
Jun. 30, 2023
Income Tax Disclosure [Abstract]  
Income Taxes
14.    Income Taxes
Our effective tax rate for the three and six months ended June 30, 2023 was 14.3% and 17.3%, respectively, compared to 24.5% and 24.6% for the three and six months ended June 30, 2022, respectively. The decrease in the effective tax rate in the three and six month periods of 2023 compared to the same periods in 2022 was primarily attributable to a higher income tax benefit recognized for excess tax benefits from stock option exercises, which totaled $55,906 and $79,151 for the three and six months ended June 30, 2023, respectively, and $8,744 and $17,190 for the three and six months ended June 30, 2022, respectively.