Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2020
Schedule Of Income Taxes [Line Items]
Deferred tax assets, valuation allowance increase (decrease)	$ 1,200	$ (1,100)	$ 7,300
Undistributed earnings of foreign subsidiaries	730,900
Unrecognized tax benefits liability	10,566	10,682	9,954	$ 6,037
Unrecognized tax benefits, reductions resulting from resolution	1,400
Unrecognized tax benefits, interest on income taxes accrued	1,800	1,400	900
Unrecognized tax benefits, income tax penalties accrued	500	500
Recognized interest expense	400	$ 400	$ 800
Internal Revenue Service (IRS)
Schedule Of Income Taxes [Line Items]
Net operating loss carryforward	$ 8,200
Net operating loss carryforward, beginning expiration	2036
State and Local Jurisdiction
Schedule Of Income Taxes [Line Items]
Net operating loss carryforward	$ 32,100
Net operating loss carryforward, beginning expiration	2024
Foreign Tax Authority
Schedule Of Income Taxes [Line Items]
Net operating loss carryforward	$ 103,700
Net operating loss carryforward, beginning expiration		2024