Segments - Net Sales by Major Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 30, 2023	Jan. 31, 2023	Oct. 31, 2022	Jul. 31, 2022	Apr. 30, 2022	Jan. 31, 2022	Oct. 31, 2021	Jul. 31, 2021	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales	$ 1,304,102	$ 1,234,618	$ 1,430,979	$ 1,359,553	$ 1,288,653	$ 1,153,595	$ 1,150,551	$ 1,042,076	$ 5,329,252	$ 4,634,875	$ 3,298,823
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales									4,676,558	3,993,717	2,770,450
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales									$ 652,694	$ 641,158	$ 528,373