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Revenue - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Sep. 30, 2022
Unearned Revenue (Details)
Amortization	$ 1.0	$ 0.4	$ 2.8	$ 2.3
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Unearned Revenue (Details)
Remaining performance obligation, period	12 months		12 months
Equipment
Unearned Revenue (Details)
Contract assets	$ 16.9		$ 16.9		$ 16.5