Restructuring Charges, Net - Schedule of Restructuring Charges Incurred by Reporting Unit (Detail) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Restructuring Cost And Reserve [Line Items]
Restructuring charges, net	$ 1,892	$ 68,558	$ 42,573
Operating Segments | Consulting
Restructuring Cost And Reserve [Line Items]
Restructuring charges, net	1,696	18,871	11,613
Operating Segments | Digital
Restructuring Cost And Reserve [Line Items]
Restructuring charges, net	0	9,469	2,856
Operating Segments | North America
Restructuring Cost And Reserve [Line Items]
Restructuring charges, net	0	8,825	4,515
Operating Segments | EMEA
Restructuring Cost And Reserve [Line Items]
Restructuring charges, net	196	17,265	12,732
Operating Segments | Asia Pacific
Restructuring Cost And Reserve [Line Items]
Restructuring charges, net	0	1,963	2,129
Operating Segments | Latin America
Restructuring Cost And Reserve [Line Items]
Restructuring charges, net	0	110	697
Operating Segments | Professional Search & Interim
Restructuring Cost And Reserve [Line Items]
Restructuring charges, net	0	3,778	4,835
Operating Segments | RPO
Restructuring Cost And Reserve [Line Items]
Restructuring charges, net	0	7,885	3,097
Corporate
Restructuring Cost And Reserve [Line Items]
Restructuring charges, net	$ 0	$ 392	$ 99