Restructuring Charges, Net - Restructuring Charges by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	$ 63,525	$ 0	$ 63,946	$ 0
Operating Segments | Consulting
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	17,571		17,820
Operating Segments | Digital
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	8,851		8,851
Operating Segments | North America
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	7,427		7,427
Operating Segments | EMEA
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	16,238		16,410
Operating Segments | Asia Pacific
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	1,963		1,963
Operating Segments | Latin America
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	110		110
Operating Segments | Professional Search & Interim
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	3,778		3,778
Operating Segments | RPO
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	7,195		7,195
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	$ 392		$ 392