Consolidated Statements of Earnings - USD ($) shares in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2022	Nov. 30, 2021
Income Statement [Abstract]
Net sales	$ 1,175,541,000	$ 1,232,861,000	$ 2,584,206,000	$ 2,343,679,000
Cost of goods sold	1,069,778,000	1,048,270,000	2,309,069,000	1,939,714,000
Gross margin	105,763,000	184,591,000	275,137,000	403,965,000
Selling, general and administrative expense	107,813,000	96,130,000	211,261,000	191,981,000
Impairment of long-lived assets			312,000
Restructuring and other income, net	(4,282,000)	(2,004,000)	(5,382,000)	(14,278,000)
Separation costs	9,246,000		9,246,000
Operating income (loss)	(7,014,000)	90,465,000	59,700,000	226,262,000
Other income (expense):
Miscellaneous income (expense), net	1,405,000	1,040,000	(3,681,000)	1,670,000
Interest expense	(7,612,000)	(7,312,000)	(16,210,000)	(15,030,000)
Equity in net income of unconsolidated affiliates	36,857,000	60,218,000	68,569,000	113,134,000
Earnings before income taxes	23,636,000	144,411,000	108,378,000	326,036,000
Income tax expense	4,131,000	31,226,000	23,629,000	71,376,000
Net earnings	19,505,000	113,185,000	84,749,000	254,660,000
Net earnings attributable to noncontrolling interests	3,287,000	2,884,000	4,449,000	11,868,000
Net earnings attributable to controlling interest	$ 16,218,000	$ 110,301,000	$ 80,300,000	$ 242,792,000
Basic
Weighted average common shares outstanding	48,558	50,381	48,518	50,618
Earnings per share attributable to controlling interest	$ 0.33	$ 2.19	$ 1.66	$ 4.80
Diluted
Weighted average common shares outstanding	49,330	51,214	49,293	51,532
Earnings per share attributable to controlling interest	$ 0.33	$ 2.15	$ 1.63	$ 4.71
Common shares outstanding at end of period	48,572	50,334	48,572	50,334
Cash dividends declared per share	$ 0.31	$ 0.28	$ 0.62	$ 0.56