Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Nov. 30, 2024	Nov. 30, 2023
Cash Flows from Operating Activities:
Net Income	$ 412,004	$ 347,128
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	92,743	84,177
Deferred income taxes	(31,252)	(5,574)
Stock-based compensation expense	13,549	17,147
Net (gain) on marketable securities	(10,684)	(6,226)
Net loss on sales of assets and businesses	0	3,623
Other	(335)	4,007
Changes in assets and liabilities, net of effect from purchases and sales of businesses:
Decrease in receivables	122,603	272,262
(Increase) decrease in inventory	(42,981)	37,243
(Increase) decrease in prepaid expenses and other current and long-term assets	(11,193)	21,260
Increase (decrease) in accounts payable	34,364	(11,806)
(Decrease) in accrued compensation and benefits	(84,929)	(53,980)
Increase in accrued losses	2,827	8,332
Increase in other accrued liabilities	30,792	50,188
Cash Provided by Operating Activities	527,508	767,781
Cash Flows from Investing Activities:
Capital expenditures	(100,732)	(89,300)
Acquisition of businesses, net of cash acquired	(85,649)	(15,404)
Purchase of marketable securities	(23,533)	(22,057)
Proceeds from sales of marketable securities	12,802	13,796
Other	(1,424)	1,326
Cash (Used for) Investing Activities	(198,536)	(111,639)
Cash Flows from Financing Activities:
Additions to long-term and short-term debt	25,086	0
Reductions of long-term and short-term debt	(134,022)	(449,485)
Cash dividends	(124,514)	(113,325)
Repurchases of common stock	(35,000)	(25,000)
Shares of common stock returned for taxes	(16,150)	(20,689)
Payments of acquisition-related contingent consideration	(1,122)	(1,082)
Other	(689)	(713)
Cash (Used for) Financing Activities	(286,411)	(610,294)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(11,257)	1,111
Net Change in Cash and Cash Equivalents	31,304	46,959
Cash and Cash Equivalents at Beginning of Period	237,379	215,787
Cash and Cash Equivalents at End of Period	268,683	262,746
Cash paid during the period for:
Interest	47,989	61,586
Income Taxes, net of refunds	129,963	124,518
Supplemental Disclosures of Noncash Investing Activities:
Capital expenditures accrued within accounts payable at quarter-end	$ 16,406	$ 12,463