Goodwill and Intangible Assets - Schedule of Changes in Carrying Value of Goodwill By Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
Apr. 30, 2026	Apr. 30, 2025
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 948,832	$ 908,376
Additions		36,857
Exchange rate fluctuations	1,804	3,599
Goodwill, ending balance	950,636	948,832
Trilogy International (Trilogy)
Goodwill [Roll Forward]
Additions		36,900
Operating Segments \| Consulting
Goodwill [Roll Forward]
Goodwill, beginning balance	173,196	172,994
Additions		0
Exchange rate fluctuations	87	202
Goodwill, ending balance	173,283	173,196
Operating Segments \| Digital
Goodwill [Roll Forward]
Goodwill, beginning balance	326,055	325,387
Additions		0
Exchange rate fluctuations	182	668
Goodwill, ending balance	326,237	326,055
Operating Segments \| North America
Goodwill [Roll Forward]
Goodwill, beginning balance	45,844	46,154
Additions		0
Exchange rate fluctuations	276	(310)
Goodwill, ending balance	46,120	45,844
Operating Segments \| EMEA
Goodwill [Roll Forward]
Goodwill, beginning balance	46,634	46,246
Additions		0
Exchange rate fluctuations	367	388
Goodwill, ending balance	47,001	46,634
Operating Segments \| Asia Pacific
Goodwill [Roll Forward]
Goodwill, beginning balance	972	972
Additions		0
Exchange rate fluctuations	0	0
Goodwill, ending balance	972	972
Operating Segments \| Professional Search & Interim
Goodwill [Roll Forward]
Goodwill, beginning balance	293,335	254,345
Additions		36,857
Exchange rate fluctuations	597	2,133
Goodwill, ending balance	293,932	293,335
Operating Segments \| RPO
Goodwill [Roll Forward]
Goodwill, beginning balance	62,796	62,278
Additions		0
Exchange rate fluctuations	295	518
Goodwill, ending balance	$ 63,091	$ 62,796

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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