Goodwill and Intangible Assets - Narrative (Details) $ in Thousands	12 Months Ended
	Apr. 30, 2024 USD ($) unit	Apr. 30, 2023 USD ($)	Apr. 30, 2022 USD ($)
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 853,767	$ 700,813
Number of reporting units | unit	10
Tradenames	$ 84,400	84,400
Amortization expense	64,156	65,730	$ 63,795
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Amortization expense	91,000
Other
Finite-Lived Intangible Assets [Line Items]
Amortization expense	1,000
Depreciation and amortization expense
Finite-Lived Intangible Assets [Line Items]
Amortization expense	64,200	$ 65,700	$ 63,800
Geographic divisions
Finite-Lived Intangible Assets [Line Items]
Goodwill	746,000
Other
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 107,800