Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022	Apr. 30, 2023
Intangible assets
Goodwill	$ 720,273		$ 720,273		$ 700,813
Amortization expense	15,974	$ 17,168	31,665	$ 34,615
Depreciation and amortization expense
Intangible assets
Amortization expense	16,000	$ 17,200	31,700	$ 34,600
Geographic divisions
Intangible assets
Goodwill	612,500		612,500
Other
Intangible assets
Goodwill	$ 107,800		$ 107,800