Revenue - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023
Unearned Revenue (Details)
Amortization	$ 1.2	$ 0.9	$ 2.2	$ 1.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01
Unearned Revenue (Details)
Remaining performance obligation, period	12 months		12 months
Equipment
Unearned Revenue (Details)
Contract assets	$ 18.5		$ 18.5		$ 16.6