Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Cash flows from operating activities:
Net income	$ 115,469	$ 276,079	$ 332,991
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	164,148	133,362	126,907
Impairment of goodwill	42,454	0	0
Write-off and amortization of debt discount and debt issuance costs	1,774	4,704	1,468
Equity-based compensation	19,202	22,436	22,098
Gain on sale of business and disposal of assets, net	(5,476)	(729)	(1,413)
Deferred income taxes	(8,628)	3,685	220
Other items, net	10,473	8,766	13,270
Changes in assets and liabilities net of effects of acquisitions:
Trade accounts and notes receivable	54,846	(26,573)	(37,024)
Inventories	2,763	17,067	(16,802)
Prepaid expenses and other assets	(549)	(18,652)	1,367
Accounts payable	(8,687)	22,147	6,665
Accrued compensation and employee benefits	828	5,795	11,754
Other accrued expenses and liabilities	(5,043)	(14,838)	(19,764)
Cash provided by operating activities	383,574	433,249	441,737
Cash flows from investing activities:
Purchases of property and equipment	(47,490)	(57,247)	(52,672)
Proceeds from sale of business and sale of assets	17,293	2,668	2,879
Acquisition of businesses, net of cash acquired	(204,092)	(376,192)	(61,677)
Other investing activities	(5,200)	0	0
Cash used in investing activities	(239,489)	(430,771)	(111,470)
Cash flows from financing activities:
Repayments on revolving credit facility	(1,657,599)	(605,409)	(647,247)
Borrowings from revolving credit facility	1,615,132	765,373	546,113
Payments of principal on long-term debt	(4,988)	(2,500)	(5,110)
Payments of principal on finance lease obligations	(46,720)	(41,786)	(35,845)
Borrowings from term loan amendments	0	390,574	0
Repayments of term loan amendments	0	(390,076)	0
Repurchases of common stock	(165,502)	(116,439)	(110,776)
Payment of acquisition holdback liability	0	0	(13,500)
Debt issuance costs	0	(7,070)	(3,157)
Proceeds from exercises of stock options	3,499	6,336	4,715
Payments for taxes related to net share settlement of equity awards	(5,006)	(4,026)	(4,005)
Proceeds from issuance of stock pursuant to employee stock purchase plan	5,967	4,586	3,203
Cash used in financing activities	(255,217)	(437)	(265,609)
Effect of exchange rates on cash and cash equivalents	583	(638)	(1,829)
(Decrease) increase in cash and cash equivalents	(110,549)	1,403	62,829
Cash and cash equivalents, beginning of year	166,148	164,745	101,916
Cash and cash equivalents, end of year	55,599	166,148	164,745
Supplemental cash flow disclosures:
Cash paid for income taxes	63,168	120,352	110,366
Cash paid for interest	$ 87,996	$ 70,798	$ 61,752