Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2021	Jan. 31, 2020
Income Tax Disclosure [Abstract]
Income tax (benefit) provision	$ 21,204	$ 8,775	$ 25,409	$ 38,988
Income tax (benefit) provision tax rate	29.10%		34.20%