Organization and Summary of Significant Accounting Policies - Translation of Foreign Currencies (Details) $ in Millions	12 Months Ended
	Apr. 30, 2025 USD ($)	Apr. 30, 2024 USD ($)	Apr. 30, 2023 USD ($)
Executive And Professional Search
Organization And Summary Of Significant Accounting Policies [Line Items]
Cash compensation, percentage	0.33
General and Administrative Expenses
Organization And Summary Of Significant Accounting Policies [Line Items]
Foreign currency losses	$ (2.8)	$ (4.5)	$ (2.0)