| Long Term Debt - Schedule of Long-term Debt (Details) - Nonrelated Party - USD ($) $ in Thousands | Dec. 31, 2023 | Sep. 30, 2023 | 
|---|---|---|
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 100,121 | $ 102,344 | 
| Less: unamortized debt issuance costs | (541) | (557) | 
| Net amount | 99,580 | 101,787 | 
| Less: current portion | (21,223) | (23,077) | 
| Total long-term debt | 78,357 | 78,710 | 
| Revolver loans | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | 56,022 | 56,779 | 
| Equipment loans | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | 14,419 | 15,486 | 
| Term loans | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | 13,669 | 14,290 | 
| Other notes payable | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 16,011 | $ 15,789 | 
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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