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- Definition

Contracts weighted average rate price.

+ References

No definition available.

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- Definition

[Line Items] for Description Of Business And Summary Of Significant Accounting Policies [Table]

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No definition available.

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Fair value of insurance contracts as of the balance sheet date.

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No definition available.

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- Definition

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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- Definition

Nominal or face amount used to calculate payment on derivative.

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Term of derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Gain (loss) incurred in hedging activities.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair value of financial instruments (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Accumulated other comprehensive income (loss), foreign currency translation adjustment, net of tax	$ (6,569)	$ 10,137
Balance Sheet Location [Axis]: us-gaap:OtherAssetsNoncurrent
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Fair value of insurance contracts	5,249
Pension Plan
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Defined benefit plan, fair value of plan assets	0	22,275	$ 19,283
Designated as hedging instrument \| Chinese Yuan Contracts
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Derivative, notional amount	$ 21,000	$ 20,500
Contracts weighted average rate price (in dollars per share)	$ 7.10	$ 7.11
Accumulated other comprehensive income (loss), foreign currency translation adjustment, before tax	$ 37	$ (410)
Accumulated other comprehensive income (loss), foreign currency translation adjustment, net of tax	27	300
Gain (loss) on hedging activity	$ (974)	$ (1,936)	$ (2,313)
Designated as hedging instrument \| Maximum \| Chinese Yuan Contracts
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Term of contract	273 days
Designated as hedging instrument \| Minimum \| Chinese Yuan Contracts
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Term of contract	31 days
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Term Loan B due 2029
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Long-term debt, fair value	$ 450,684
Senior Notes due 2028 \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Senior Notes
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Long-term debt, fair value	$ 972,338