Organization and Summary of Significant Accounting Policies - Additional Information (Detail)			3 Months Ended		9 Months Ended
	Jan. 31, 2024 USD ($) performance_obligation phase solution	Apr. 30, 2023 USD ($)	Jan. 31, 2024 USD ($) performance_obligation phase solution	Jan. 31, 2023 USD ($)	Jan. 31, 2024 USD ($) performance_obligation phase solution	Jan. 31, 2023 USD ($)
Organization And Summary Of Significant Accounting Policies [Line Items]
Number of core solutions | solution	5		5		5
Number of revenue recognition phases | phase	2		2		2
Number of performance obligations | performance_obligation	1		1		1
Credit loss for available for sales debt securities	$ 0		$ 0	$ 0	$ 0	$ 0
Impairment of right-of-use assets			0	5,471,000	1,629,000	5,471,000
Impairment of fixed assets			$ 0	4,375,000	$ 1,575,000	4,375,000
Impairment of goodwill	0	$ 0
Impairment of intangible assets	$ 0	$ 0
Executive And Professional Search
Organization And Summary Of Significant Accounting Policies [Line Items]
Cash compensation, percentage	0.33		0.33		0.33
Minimum
Organization And Summary Of Significant Accounting Policies [Line Items]
Intangible assets estimated useful lives	1 year		1 year		1 year
Maximum
Organization And Summary Of Significant Accounting Policies [Line Items]
Intangible assets estimated useful lives	24 years		24 years		24 years
Right-Of-Use Assets
Organization And Summary Of Significant Accounting Policies [Line Items]
Impairment of right-of-use assets				5,500,000	$ 1,600,000	5,500,000
Leasehold Improvements And Furniture And Fixtures
Organization And Summary Of Significant Accounting Policies [Line Items]
Impairment of fixed assets				$ 4,400,000	100,000	$ 4,400,000
Software
Organization And Summary Of Significant Accounting Policies [Line Items]
Impairment of fixed assets					$ 1,500,000