Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2023	Jul. 31, 2022
Cash flows from operating activities:
Net income	$ 86,830	$ 89,470
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	32,018	32,440
Write-off and amortization of debt discount and debt issuance costs	2,077	425
Equity-based compensation	5,002	5,971
Gain on disposal of assets	(131)	(284)
Deferred income taxes	(2,587)	(945)
Other items, net	820	2,958
Changes in assets and liabilities net of effects of acquisitions:
Trade accounts and notes receivable	(38,244)	(69,635)
Inventories	(1,359)	(28,712)
Prepaid expenses and other assets	(19,331)	(3,709)
Accounts payable	(28,280)	(4,405)
Accrued compensation and employee benefits	(64,038)	(46,065)
Other accrued expenses and liabilities	33,870	18,088
Cash provided by (used in) operating activities	6,647	(4,403)
Cash flows from investing activities:
Purchases of property and equipment	(13,538)	(10,943)
Proceeds from sale of assets	982	272
Acquisition of businesses, net of cash acquired	(38,976)	(2,606)
Cash used in investing activities	(51,532)	(13,277)
Cash flows from financing activities:
Repayments on revolving credit facilities	(187,784)	(141,247)
Borrowings from revolving credit facilities	190,673	195,113
Payments of principal on long-term debt	0	(1,278)
Proceeds from Term Loan Facility amendment	498	0
Payments of principal on finance lease obligations	(9,793)	(7,639)
Repurchases of common stock	(30,784)	(23,795)
Payment for debt issuance costs	(5,825)	0
Proceeds from exercises of stock options	1,248	29
Payments for taxes related to net share settlement of equity awards	0	(300)
Proceeds from issuance of stock pursuant to employee stock purchase plan	2,664	1,329
Cash (used in) provided by financing activities	(39,103)	22,212
Effect of exchange rates on cash and cash equivalents	692	165
(Decrease) increase in cash and cash equivalents	(83,296)	4,697
Cash and cash equivalents, beginning of period	164,745	101,916
Cash and cash equivalents, end of period	81,449	106,613
Supplemental cash flow disclosures:
Cash paid for income taxes	3,167	3,232
Cash paid for interest	$ 21,853	$ 17,834