Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended	12 Months Ended
	Jan. 31, 2024	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Schedule Of Income Taxes [Line Items]
Deferred tax assets, valuation allowance increase (decrease)		$ (12,700,000)	$ 1,200,000	$ (1,100,000)
Change in deferred tax assets valuation allowance, amount	$ (9,700,000)
Undistributed earnings of foreign subsidiaries		795,100,000
Unrecognized tax benefits liability		14,023,000	10,566,000	10,682,000	$ 9,954,000
Unrecognized tax benefits, reductions resulting from resolution		5,000,000
Unrecognized tax benefits, interest on income taxes accrued		2,100,000	1,800,000	1,400,000
Unrecognized tax benefits, income tax penalties accrued		200,000	500,000
Recognized interest expense		0	$ 400,000	$ 400,000
Internal Revenue Service (IRS)
Schedule Of Income Taxes [Line Items]
Net operating loss carryforward		4,300,000
State and Local Jurisdiction
Schedule Of Income Taxes [Line Items]
Net operating loss carryforward		41,500,000
Foreign Tax Authority
Schedule Of Income Taxes [Line Items]
Net operating loss carryforward		$ 103,300,000