v3.26.1
Supporting Financial Information - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Amortization expense of intangible assets $ 3.8 $ 4.1 $ 12.0 $ 12.3
Depreciation 0.2 $ 0.2 0.6 $ 0.5
Deferred tax assets, valuation allowance $ 10.4   $ 10.4