Restructuring - Additional Information (Detail) - 2025 Plan - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2026	Mar. 31, 2026
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 468
Cumulative Amount Incurred
Restructuring Cost And Reserve [Line Items]
Restructuring charges		$ 8,947
Employee Termination Benefit Costs
Restructuring Cost And Reserve [Line Items]
Restructuring charges	342
Employee Termination Benefit Costs \| Cumulative Amount Incurred
Restructuring Cost And Reserve [Line Items]
Restructuring charges		8,737
Other Cash Restructuring Charges
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 126
Other Cash Restructuring Charges \| Cumulative Amount Incurred
Restructuring Cost And Reserve [Line Items]
Restructuring charges		$ 210

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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- 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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