Restructuring Charges, Net - Restructuring Charges by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2024	Jan. 31, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	$ 4,612	$ 41,162	$ 68,558	$ 41,162
Operating Segments | Consulting
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	1,051	10,842	18,871	10,842
Operating Segments | Digital
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	618	2,856	9,469	2,856
Operating Segments | North America
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	1,398	4,352	8,825	4,352
Operating Segments | EMEA
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	855	12,255	17,265	12,255
Operating Segments | Asia Pacific
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	0	2,129	1,963	2,129
Operating Segments | Latin America
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	0	697	110	697
Operating Segments | Professional Search & Interim
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	0	4,835	3,778	4,835
Operating Segments | RPO
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	690	3,097	7,885	3,097
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	$ 0	$ 99	$ 392	$ 99