Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net Earnings	$ 73.7	$ 44.3	$ 174.8	$ 119.4
Foreign currency translation adjustments:
Unrealized foreign currency translation adjustments	(0.1)	0.0	0.3	1.8
Other Comprehensive (Loss) Income	(0.1)	0.0	0.3	1.8
Total Comprehensive Income	$ 73.6	$ 44.3	$ 175.1	$ 121.2