Subsequent Events (Details) - USD ($) $ in Millions		12 Months Ended
	Oct. 31, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Business Acquisition [Line Items]
Total purchase consideration, net of cash acquired		$ 16.6	$ 2,488.5	$ 550.9
Cubic | Subsequent Event
Business Acquisition [Line Items]
Net current and other tangible assets, net of cash acquired	$ 64.9
Goodwill and other intangible assets	103.0
Total assets acquired	167.9
Less: Liabilities assumed	(33.2)
Total assets acquired	134.7
Total purchase consideration, net of cash acquired	$ 134.7