Restructuring and Other Costs, Net - Schedule of Restructuring and Other Costs, Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Restructuring Cost And Reserve [Line Items]
Restructuring and other costs, net	$ 1,259	$ 850	$ 9,180	$ 14,744
Personnel
Restructuring Cost And Reserve [Line Items]
Restructuring and other costs, net	126	126	7,704	12,095
Facilities
Restructuring Cost And Reserve [Line Items]
Restructuring and other costs, net	382	0	635	0
Other
Restructuring Cost And Reserve [Line Items]
Restructuring and other costs, net	$ 751	$ 724	$ 841	$ 2,649

- 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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