Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Feb. 28, 2026	Feb. 28, 2025
Cash Flows from Operating Activities:
Net Income	$ 440,928	$ 464,318
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	155,798	140,092
Fair value adjustments to contingent earnout obligations	(12,707)	0
Deferred income taxes	22,656	(47,012)
Stock-based compensation expense	24,459	21,494
Net (gain) on marketable securities	(17,816)	(5,125)
Net (gain) on sales of assets and businesses	(4,675)	0
Other	(466)	(635)
Changes in assets and liabilities, net of effect from purchases and sales of businesses:
Decrease in receivables	306,900	302,429
(Increase) in inventory	(53,983)	(96,539)
(Increase) in prepaid expenses and other current and long-term assets	(1,460)	(35,973)
(Decrease) increase in accounts payable	(85,142)	5,174
(Decrease) in accrued compensation and benefits	(60,180)	(82,118)
(Decrease) increase in accrued losses	(4,327)	1,383
(Decrease) in other accrued liabilities	(53,313)	(48,476)
Cash Provided by Operating Activities	656,672	619,012
Cash Flows from Investing Activities:
Capital expenditures	(159,639)	(158,924)
Acquisition of businesses, net of cash acquired	(161,553)	(127,325)
Purchase of marketable securities	(27,570)	(77,640)
Proceeds from sales of marketable securities	16,918	59,460
Proceeds from sales of assets and businesses, net	18,199	0
Other	(10)	(1,236)
Cash (Used for) Investing Activities	(313,655)	(305,665)
Cash Flows from Financing Activities:
Additions to long-term and short-term debt	49,000	104,047
Reductions of long-term and short-term debt	(153,489)	(136,379)
Cash dividends	(202,789)	(190,064)
Repurchases of common stock	(52,500)	(52,499)
Shares of common stock returned for taxes	(3,336)	(17,140)
Payments of acquisition-related contingent consideration	0	(1,122)
Other	(2,891)	(1,014)
Cash (Used for) Financing Activities	(366,005)	(294,171)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	15,057	(14,660)
Net Change in Cash and Cash Equivalents	(7,931)	4,516
Cash and Cash Equivalents at Beginning of Period	302,137	237,379
Cash and Cash Equivalents at End of Period	294,206	241,895
Cash paid during the period for:
Interest	84,291	71,931
Income Taxes, net of refunds	174,287	180,243
Supplemental Disclosures of Noncash Investing Activities:
Capital expenditures accrued within accounts payable at quarter-end	$ 17,181	$ 14,721