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Revenue - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Revenue from Contract with Customer [Abstract]        
Contract with customer, liability, revenue recognized $ 0.6 $ 0.9 $ 1.4 $ 2.2
Revenue, remaining performance obligation, amount $ 8.5   $ 8.5