Consolidated and Combined Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Common Shares	Additional Paid-in Capital	Net Investment by the Former Parent	Accumulated Other Comprehensive Income (Loss), Net of Tax	Retained Earnings	Total	Noncontrolling Interests
Balance at May. 31, 2022	$ 1,266.4	$ 0.0	$ 0.0	$ 1,131.3	$ 1.9	$ 0.0	$ 1,133.2	$ 133.2
Balance (in shares) at May. 31, 2022		0
Net earnings	99.7			87.1			87.1	12.6
Other comprehensive income (loss)	(4.0)				(4.0)		(4.0)
Transfers from (to) the Former Parent, net	(187.3)			(187.3)			(187.3)
Dividends to noncontrolling interests	(20.2)							(20.2)
Balance at May. 31, 2023	1,154.6	$ 0.0	0.0	1,031.1	(2.1)	0.0	1,029.0	125.6
Balance (in shares) at May. 31, 2023		0
Net earnings	170.1			52.5		102.2	154.7	15.4
Other comprehensive income (loss)	(4.0)				(4.0)		(4.0)
Distribution to the Former Parent in connection with the Separation	(150.0)		(150.0)				(150.0)
Transfers from (to) the Former Parent, net	(32.7)		11.4	(44.1)			(32.7)
Dividends to noncontrolling interests	(8.8)							(8.8)
Transfers of Net Investment by the Former Parent to Additional Paid-in Capital			1,039.5	(1,039.5)
Transfers of Net Investment by the Former Parent to Additional Paid-in Capital (in shares)		49,286,517
Common shares issued, net of withholding tax	0.2		0.2				0.2
Common shares issued, net of withholding tax (in shares)		44,997
Stock-based compensation	4.2		4.2				4.2
Cash dividends declared per common share	(16.1)					(16.1)	(16.1)
Balance at May. 31, 2024	1,117.5	$ 0.0	905.3	0.0	(6.1)	86.1	985.3	132.2
Balance (in shares) at May. 31, 2024		49,331,514
Net earnings	119.3			0.0		110.7	110.7	8.6
Other comprehensive income (loss)	2.1				2.1		2.1
Dividends to noncontrolling interests	(17.0)							(17.0)
Common shares issued, net of withholding tax	(3.1)		(3.1)				(3.1)
Common shares issued, net of withholding tax (in shares)		217,381
Theoretical common shares in non-qualified deferred compensation plans	0.1		0.1				0.1
Stock-based compensation	11.6		11.6				11.6
Cash dividends declared per common share	(32.6)					(32.6)	(32.6)
Balance at May. 31, 2025	$ 1,197.9	$ 0.0	$ 913.9	$ 0.0	$ (4.0)	$ 164.2	$ 1,074.1	$ 123.8
Balance (in shares) at May. 31, 2025		49,548,895