Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net earnings	$ 547.5	$ 462.5	$ 482.1
Other comprehensive income (loss), net:
Foreign currency translation adjustments	117.6	(26.4)	(15.0)
Pension and post-retirement liability adjustment, net of taxes of $(0.1), $0.9 and $0.9 for the years ended June 30, 2021, 2020 and 2019, respectively	0.3	(2.8)	(2.7)
Fair market value loss on cash flow hedge, net of tax benefit of $2.6, —, and — for the years ended June 30, 2021, 2020 and 2019, respectively.	(8.2)	0.0	0.0
Total other comprehensive income (loss), net	109.7	(29.2)	(17.7)
Comprehensive income	$ 657.2	$ 433.3	$ 464.3