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Long-Term Debt and Bank Facility Borrowings - Company's Debt (Detail) - USD ($) $ in Thousands | Jun. 30, 2019 | Sep. 30, 2018
--- | --- | ---
Debt Instrument [Line Items] |  |  |
Long-term debt, carrying Amount |  | $ 164,899 | $ 100,780
Current maturities of long-term debt, carrying Amount |  | 80,500 | 9,000
Long-term debt |  | 84,399 | 91,780
Long-term debt, fair value | [1] | 165,500 | 101,500
Current maturities of long-term debt, fair value | [1] | 80,500 | 9,000
Long-term portion of debt, fair value | [1] | 85,000 | 92,500
Revolving Credit Facility |  |  |
Debt Instrument [Line Items] |  |  |
Credit facility borrowings, carrying Amount |  | 70,500 | 1,500
Credit facility borrowings, fair value | [1] | 70,500 | 1,500
Term Loan |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt, carrying Amount | [2] | 94,399 | 99,280
Long-term debt, fair value | [1],[2] | $ 95,000 | $ 100,000
[1] | The face amount of the Company’s variable rate long-term debt approximates fair value.
[2] | Carrying amounts are net of unamortized debt issuance costs of $0.6 million as of June 30, 2019 and $0.7 million as of September 30, 2018.

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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 http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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