Revenue Recognition - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Deferred revenue, revenue recognized	$ 67.7	$ 57.6
Unbilled receivables
Disaggregation of Revenue [Line Items]
Unbilled contracts receivable	$ 24.1	$ 31.9

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details