Consolidated and Combined Statements of Earnings - USD ($) shares in Millions		12 Months Ended
		May 31, 2024	May 31, 2023	May 31, 2022
Income Statement [Abstract]
Net sales		$ 3,430,600,000	$ 3,607,700,000	$ 4,068,900,000
Cost of goods sold		2,990,800,000	3,271,200,000	3,673,400,000
Gross margin		439,800,000	336,500,000	395,500,000
Selling, general and administrative expense		224,400,000	200,800,000	180,300,000
Impairment of long-lived assets		1,400,000	2,100,000	3,100,000
Restructuring and other income, net		0	(4,200,000)	(14,500,000)
Separation costs		19,500,000	17,500,000	0
Operating income		194,500,000	120,300,000	226,600,000
Other income (expense):
Miscellaneous income, net		5,300,000	3,700,000	900,000
Interest expense, net		(6,000,000)	(3,000,000)	(3,000,000)
Equity in net income of unconsolidated affiliate		22,400,000	7,700,000	29,800,000
Earnings before income taxes		216,200,000	128,700,000	254,300,000
Income tax expense		46,100,000	29,000,000	54,000,000
Net earnings		170,100,000	99,700,000	200,300,000
Net earnings attributable to noncontrolling interests	[1]	15,400,000	12,600,000	19,900,000
Net earnings attributable to controlling interest		$ 154,700,000	$ 87,100,000	$ 180,400,000
Basic
Weighted average common shares outstanding		49.3	49.3	49.3
Earnings per common share attributable to controlling interest		$ 3.14	$ 1.77	$ 3.66
Diluted
Weighted average common shares outstanding		49.8	49.3	49.3
Earnings per common share attributable to controlling interest		$ 3.11	$ 1.77	$ 3.66

[1] Net earnings attributable to noncontrolling interests are not taxable to the Company.