Segments - Net Sales, Adjusted EBITDA and Certain Other Measures (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 30, 2022	Jan. 31, 2022	Oct. 31, 2021	Jul. 31, 2021	Apr. 30, 2021	Jan. 31, 2021	Oct. 31, 2020	Jul. 31, 2020	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2020
Segment Reporting Information [Line Items]
Net sales	$ 1,288,653	$ 1,153,595	$ 1,150,551	$ 1,042,076	$ 932,203	$ 751,191	$ 812,856	$ 802,573	$ 4,634,875	$ 3,298,823	$ 3,241,307
Gross Profit	412,800	$ 367,772	$ 371,870	$ 335,833	293,850	$ 243,324	$ 265,071	$ 260,458	1,488,275	1,062,703	1,063,214
Depreciation and Amortization									119,232	108,125	116,533
Adjusted EBITDA									566,921	319,371	299,759
Total Assets	3,104,399				2,483,898				3,104,399	2,483,898	2,324,454
Geographic divisions
Segment Reporting Information [Line Items]
Net sales									4,559,477	3,263,893	3,213,938
Gross Profit									1,451,748	1,051,741	1,053,555
Depreciation and Amortization									111,452	106,152	114,279
Adjusted EBITDA									551,200	316,774	297,646
Total Assets	2,809,394				2,459,344				2,809,394	2,459,344	2,299,880
Other
Segment Reporting Information [Line Items]
Net sales									75,398	34,930	27,369
Gross Profit									36,527	10,962	9,659
Depreciation and Amortization									6,120	364	233
Adjusted EBITDA									15,721	2,597	2,113
Total Assets	290,341				20,339				290,341	20,339	18,745
Corporate
Segment Reporting Information [Line Items]
Net sales									0	0	0
Gross Profit									0	0	0
Depreciation and Amortization									1,660	1,609	2,021
Adjusted EBITDA									0	0	0
Total Assets	$ 4,664				$ 4,215				$ 4,664	$ 4,215	$ 5,829