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Long-Term Debt and Bank Facility Borrowings - Company's Debt (Detail) - USD ($) $ in Thousands | Mar. 31, 2023 | Sep. 30, 2022
--- | --- | ---
Debt Instrument [Line Items] |  |  |
Long-term debt, carrying Amount |  | $ 225,895 | $ 184,360
Current maturities of long-term debt, carrying Amount |  | 86,436 | 32,651
Long-term debt | [1] | 139,459 | 151,709
Long-term debt, fair value | [2] | 226,686 | 185,276
Current maturities of long-term debt, fair value | [2] | 86,436 | 32,651
Long-term portion of debt, fair value | [1],[2] | 140,250 | 152,625
Revolving Credit Facility |  |  |
Debt Instrument [Line Items] |  |  |
Credit facility borrowings, carrying Amount |  | 69,936 | 20,276
Credit facility borrowings, fair value | [2] | 69,936 | 20,276
Term Loan |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt, carrying Amount | [1] | 155,959 | 164,084
Long-term debt, fair value | [1],[2] | $ 156,750 | $ 165,000
[1] | Carrying amounts are net of unamortized debt issuance costs of $0.8 million as of March 31, 2023 and $0.9 million as of September 30, 2022
[2] | The face amount of the Company’s variable rate long-term debt approximates fair value.

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- Definition Carrying value as of the balance sheet date of current portion of long-term loans payable to bank due within one year or the operating cycle if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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