Income Taxes	3 Months Ended
	Jul. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective income tax rate for the three-month period ended July 31, 2021 was 29.2%, compared with 26.6% in the comparable period in the prior fiscal year. The effective rate for the three-month period ending July 31, 2021 was higher than the comparable period in the prior fiscal year due to state income taxes and the impact of discrete items on lower pretax income.