Quarterly report [Sections 13 or 15(d)]

Revenue Recognition - Narrative (Details)

v3.25.1
Revenue Recognition - Narrative (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
Disaggregation of Revenue [Line Items]          
Deferred revenue, revenue recognized $ 25.6 $ 7.6 $ 73.2 $ 45.3  
Revenue, remaining performance obligation, amount $ 318.0   $ 318.0    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-04-01          
Disaggregation of Revenue [Line Items]          
Revenue, remaining performance obligation, percentage 64.00%   64.00%    
Revenue, remaining performance obligation, expected timing of satisfaction, period 12 months   12 months    
Unbilled receivables          
Disaggregation of Revenue [Line Items]          
Unbilled contracts receivable $ 24.3   $ 24.3   $ 31.9