Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2025	Jan. 31, 2024	Apr. 30, 2024
Intangible assets
Goodwill	$ 870,027		$ 870,027		$ 853,767
Impairment of goodwill	42,454	$ 0	42,454	$ 0
Amortization expense	21,159	$ 15,528	61,512	$ 47,193
Ames Reporting Unit
Intangible assets
Goodwill	65,300		65,300
Impairment of goodwill			42,500
Geographic divisions
Intangible assets
Goodwill	804,700		804,700
Other
Intangible assets
Goodwill	$ 65,300		$ 65,300