Summary of Significant Accounting Policies - Additional Information (Details)	12 Months Ended
	Apr. 30, 2025 USD ($) segement $ / shares shares	Apr. 30, 2024 USD ($) $ / shares shares	Apr. 30, 2023 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Unrealized foreign currency transaction loss (gain)	$ (2,211,000)	$ (1,930,000)	$ 1,386,000
Capitalized costs, additions	$ 0	0
Number of operating segments | segement	1
Number of reportable segments | segement	1
Impairment of goodwill	$ 0	0	0
Impairment charges	$ 0	0
Estimated amortization period of sales commissions	5 years
Advertising costs	$ 22,500,000	$ 26,000,000	22,400,000
Treasury stock (in shares) | shares	35,937	35,937
Average treasury stock repurchase price ( in $ / shares) | $ / shares	$ 10.30	$ 10.30
Minimum
Summary Of Significant Accounting Policies [Line Items]
Percentage of likelihood that a tax benefit will be sustained	50.00%
Operating Right-Of-Use Assets
Summary Of Significant Accounting Policies [Line Items]
Impairment charges			5,100,000
Furniture, Equipment, And Leasehold Improvements
Summary Of Significant Accounting Policies [Line Items]
Impairment charges			1,100,000
Other Income (Expense)
Summary Of Significant Accounting Policies [Line Items]
Unrealized foreign currency transaction loss (gain)	$ (2,500,000)	$ (3,400,000)	$ (400,000)