Segments - Net Sales, Adjusted EBITDA and Segment Results (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 30, 2025	Jan. 31, 2025	Oct. 31, 2024	Jul. 31, 2024	Apr. 30, 2024	Jan. 31, 2024	Oct. 31, 2023	Jul. 31, 2023	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Reconciliation of net sales
Net sales	$ 1,333,796	$ 1,260,710	$ 1,470,776	$ 1,448,456	$ 1,413,029	$ 1,258,348	$ 1,420,930	$ 1,409,600	$ 5,513,738	$ 5,501,907	$ 5,329,252
Reconciliation of Adjusted EBITDA
Adjusted EBITDA									500,922	615,454	665,696
Interest expense									(89,080)	(75,461)	(65,843)
Write-off of debt discount and deferred financing fees									0	(2,075)	0
Interest income									919	1,754	1,287
Depreciation									(83,007)	(69,206)	(61,177)
Amortization									(81,141)	(64,156)	(65,730)
Impairment of goodwill									(42,454)	0	0
Stock appreciation expense									(2,296)	(5,391)	(7,703)
Redeemable noncontrolling interests and deferred compensation									(1,260)	(1,427)	(1,178)
Equity-based compensation									(15,646)	(15,618)	(13,217)
Severance and other permitted costs									(11,851)	(2,628)	(2,788)
Transaction costs (acquisitions and other)									(3,920)	(4,856)	(1,961)
Gain on disposal of assets									5,476	729	1,413
Effects of fair value adjustments to inventory									(485)	(1,633)	(1,123)
Change in fair value of contingent consideration									(1,882)	0	0
Debt transaction costs									0	(1,320)	(173)
Income before taxes									174,295	374,166	447,503
Operating Segments
Reconciliation of net sales
Net sales									5,402,691	5,374,474	5,200,268
Reconciliation of Adjusted EBITDA
Adjusted EBITDA									489,959	598,540	635,415
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment
Reconciliation of net sales
Net sales									111,047	127,433	128,984
Reconciliation of Adjusted EBITDA
Adjusted EBITDA									$ 10,963	$ 16,914	$ 30,281