Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Statement of Comprehensive Income [Abstract]
Net earnings	$ 276.3	$ 243.1	$ 726.2	$ 465.3
Other comprehensive income (loss), net:
Foreign currency translation adjustments	(46.1)	(26.7)	27.3	(46.7)
Pension and post-retirement liability adjustment, net of taxes of $(0.0) and $(0.0) for the three months ended March 31, 2026 and 2025, respectively and $(0.1) and $(0.1) for the nine months ended March 31, 2026 and 2025, respectively	0.1	0.1	0.2	0.3
Cash flow hedge amortization, net of taxes of $(0.1) and $(0.1) for the three months ended March 31, 2026 and 2025, respectively and $(0.2) and $(0.2) for the nine months ended March 31, 2026 and 2025, respectively	0.2	0.2	0.6	0.6
Total other comprehensive income (loss), net	(45.8)	(26.4)	28.1	(45.8)
Comprehensive income	$ 230.5	$ 216.6	$ 754.4	$ 419.5