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Revenue - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Sep. 30, 2024
Unearned Revenue (Details)          
Amortization $ 2.1 $ 1.2 $ 4.0 $ 2.2  
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 $ 24.7   $ 24.7   $ 23.6