Segments - Schedule of Depreciation and Amortization By Reportable Segments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 80,287	$ 77,966	$ 68,335
Operating Segments | Consulting
Segment Reporting Information [Line Items]
Depreciation and amortization	16,134	16,822	16,557
Operating Segments | Digital
Segment Reporting Information [Line Items]
Depreciation and amortization	34,954	32,248	29,997
Operating Segments | North America
Segment Reporting Information [Line Items]
Depreciation and amortization	1,416	1,774	2,013
Operating Segments | EMEA
Segment Reporting Information [Line Items]
Depreciation and amortization	1,935	1,726	1,369
Operating Segments | Asia Pacific
Segment Reporting Information [Line Items]
Depreciation and amortization	910	904	661
Operating Segments | Latin America
Segment Reporting Information [Line Items]
Depreciation and amortization	964	1,053	792
Operating Segments | Professional Search & Interim
Segment Reporting Information [Line Items]
Depreciation and amortization	12,337	12,950	8,639
Operating Segments | RPO
Segment Reporting Information [Line Items]
Depreciation and amortization	3,317	2,863	2,410
Corporate
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 8,320	$ 7,626	$ 5,897