Employee Stock Plans - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Jan. 31, 2024	Oct. 31, 2023	Jul. 31, 2023	Jan. 31, 2023	Oct. 31, 2022	Jul. 31, 2022	Jan. 31, 2024	Jan. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares repurchased during the period, value	$ 21,102	$ 4,765	$ 14,358	$ 25,062	$ 33,286	$ 44,276
Treasury Stock, Common
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares repurchased during the period (in shares)	382,500			462,500			565,000	1,454,867
Shares repurchased during the period, value	$ 21,000			$ 25,000			$ 29,600	$ 80,500