Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2025	Aug. 31, 2024
Cash Flows from Operating Activities:
Net Income	$ 227,840	$ 228,554
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	51,464	46,185
Deferred income taxes	1,304	(4,646)
Stock-based compensation expense	5,475	6,226
Net (gain) on marketable securities	(8,673)	(5,971)
Other	(324)	(70)
Changes in assets and liabilities, net of effect from purchases and sales of businesses:
Decrease in receivables	49,331	78,011
(Increase) in inventory	(16,005)	(43,991)
(Increase) in prepaid expenses and other current and long-term assets	(18,051)	(37,620)
Increase in accounts payable	7,810	52,152
(Decrease) in accrued compensation and benefits	(99,296)	(116,792)
(Decrease) in accrued losses	(6,098)	(123)
Increase in other accrued liabilities	42,733	46,144
Cash Provided by Operating Activities	237,510	248,059
Cash Flows from Investing Activities:
Capital expenditures	(62,461)	(50,742)
Acquisition of businesses, net of cash acquired	(115,695)	(6,223)
Purchase of marketable securities	(6,283)	(11,394)
Proceeds from sales of marketable securities	1,525	4,188
Other	523	90
Cash (Used for) Investing Activities	(182,391)	(64,081)
Cash Flows from Financing Activities:
Additions to long-term and short-term debt	35,000	37,807
Reductions of long-term and short-term debt	(14,972)	(131,809)
Cash dividends	(64,521)	(58,892)
Repurchases of common stock	(17,500)	(17,500)
Shares of common stock returned for taxes	(1,921)	(15,396)
Other	(221)	(162)
Cash (Used for) Financing Activities	(64,135)	(185,952)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	3,954	(3,850)
Net Change in Cash and Cash Equivalents	(5,062)	(5,824)
Cash and Cash Equivalents at Beginning of Period	302,137	237,379
Cash and Cash Equivalents at End of Period	297,075	231,555
Cash paid during the period for:
Interest	28,640	26,438
Income Taxes, net of refunds	38,080	43,728
Supplemental Disclosures of Noncash Investing Activities:
Capital expenditures accrued within accounts payable at quarter-end	$ 17,265	$ 15,180