Program Termination Costs - Narrative (Details) $ in Millions	3 Months Ended
	Dec. 31, 2024 USD ($)
Restructuring Cost and Reserve [Line Items]
Accrued contract termination costs	$ 31.5
Contract Termination
Restructuring Cost and Reserve [Line Items]
Accrued contract termination costs	30.3
Severance-Related
Restructuring Cost and Reserve [Line Items]
Accrued contract termination costs	$ 1.2

- Definition

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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