Restructuring and Related Charges - Summary the activity related to the company's restructuring and related liabilities (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025
Restructuring and Related Activities [Abstract]
Balance at beginning of period	$ 693	$ 11,469	$ 4,393
Period charges	$ 437	$ 1,573
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Restructuring And Related Charges	Restructuring And Related Charges
Period reversals	$ (67)	$ (296)
Period payments	(445)	(8,353)
Balance at end of period	$ 618	$ 4,393	$ 618

Restructuring Reserve Period Reversals

No definition available.

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- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

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- References

No definition available.

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- 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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Indicates line item in statement of income or comprehensive income that includes restructuring charges.

+ References

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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