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Income Taxes
6 Months Ended
Oct. 31, 2022
Income Tax Disclosure [Abstract]  
Income Taxes
The effective income tax rates for the three months ended October 31, 2022 and 2021, were 24.4 and 23.4 percent, respectively, and for the six months ended October 31, 2022 and 2021, were 23.6 and 24.1 percent, respectively. During the three and six months ended October 31, 2022 and 2021, the effective income tax rates varied from the U.S. statutory income tax rate of 21.0 percent primarily due to the impact of state income taxes.
Within the next 12 months, it is reasonably possible that we could decrease our unrecognized tax benefits by an estimated $1.2, primarily as a result of the expiration of statute of limitation periods.