Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	May 31, 2024	May 31, 2023	May 31, 2022
Cash Flows From Operating Activities:
Net Income	$ 589,442,000	$ 479,731,000	$ 492,466,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	171,251,000	154,949,000	153,074,000
Restructuring charges, net of payments			(2,516,000)
Goodwill impairment	0	36,745,000	0
Fair value adjustments to contingent earnout obligations			3,253,000
Deferred income taxes	(5,638,000)	6,236,000	(25,067,000)
Stock-based compensation expense	25,925,000	28,673,000	40,114,000
Net (gain) loss on marketable securities	(19,914,000)	2,086,000	17,706,000
Net (gain) on sales of assets and businesses	(971,000)	(28,632,000)	(51,983,000)
Other	2,226,000	1,683,000	(66,000)
Changes in assets and liabilities, net of effect from purchases and sales of businesses:
Decrease (increase) in receivables	82,895,000	(94,585,000)	(187,299,000)
Decrease (increase) in inventory	179,843,000	66,805,000	(304,197,000)
Decrease (increase) in prepaid expenses and other current and long-term assets	23,426,000	1,364,000	(13,040,000)
(Decrease) increase in accounts payable	(24,439,000)	(116,053,000)	101,223,000
Increase (decrease) in accrued compensation and benefits	39,891,000	(2,643,000)	9,737,000
Increase (decrease) in accrued losses	5,958,000	2,231,000	(3,956,000)
Increase (decrease) in other accrued liabilities	52,410,000	38,515,000	(50,718,000)
Cash Provided By Operating Activities	1,122,305,000	577,105,000	178,731,000
Cash Flows From Investing Activities:
Capital expenditures	(213,970,000)	(254,435,000)	(222,403,000)
Acquisition of businesses, net of cash acquired	(15,549,000)	(47,542,000)	(127,457,000)
Purchase of marketable securities	(32,981,000)	(18,674,000)	(15,032,000)
Proceeds from sales of marketable securities	46,689,000	12,731,000	21,533,000
Proceeds from sales of assets and businesses	6,921,000	58,288,000	76,590,000
Other	2,450,000	(72,000)	7,222,000
Cash (Used For) Investing Activities	(206,440,000)	(249,704,000)	(259,547,000)
Cash Flows From Financing Activities:
Additions to long-term and short-term debt		341,720,000	437,564,000
Reductions of long-term and short-term debt	(575,408,000)	(355,463,000)	(101,505,000)
Cash dividends	(231,883,000)	(213,912,000)	(204,394,000)
Repurchase of common stock	(54,978,000)	(50,000,000)	(52,500,000)
Shares of common stock returned for taxes	(24,548,000)	(17,047,000)	(11,549,000)
Payments of acquisition-related contingent consideration	(1,142,000)	(3,765,000)	(5,774,000)
Other	(2,075,000)	(2,689,000)	(4,452,000)
Cash (Used For) Provided By Financing Activities	(890,034,000)	(301,156,000)	57,390,000
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(4,239,000)	(12,130,000)	(21,606,000)
Net Change in Cash and Cash Equivalents	21,592,000	14,115,000	(45,032,000)
Cash and Cash Equivalents at Beginning of Period	215,787,000	201,672,000	246,704,000
Cash and Cash Equivalents at End of Period	237,379,000	215,787,000	201,672,000
Cash paid during the year for:
Interest	116,650,000	113,953,000	81,838,000
Income taxes, net of refunds	203,607,000	134,436,000	172,254,000
Supplemental Disclosures of Non-Cash Investing and Financing Activities:
Capital expenditures accrued within accounts payable at year-end	$ 24,632,000	$ 34,470,000	$ 27,237,000