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Debt - Schedule of Long-term Borrowing Obligations (Parenthetical) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022
Debt Instrument [Line Items] |  |  |
Unamortized Debt Issuance Expense | [1] | $ 6,215 | $ 8,372
Long term debt |  | $ 9,375 | 0
Line of Credit |  |  |
Debt Instrument [Line Items] |  |  |
Credit facility maturity date |  | Jan. 03, 2028 |
Secured Debt |  |  |
Debt Instrument [Line Items] |  |  |
Long term debt maturity repayments year one |  | $ 9,400 |
Long term debt maturity repayments year two |  | 21,900 |
Long term debt maturity repayments year three |  | 25,000 |
Long term debt maturity repayments year four |  | 25,000 |
Long term debt maturity repayments year five |  | 418,700 |
Long term debt |  | 9,400 |
Other Current Assets [Member] | Line of Credit |  |  |
Debt Instrument [Line Items] |  |  |
Unamortized Debt Issuance Expense |  | 2,300 |
Other Noncurrent Assets [Member] | Line of Credit |  |  |
Debt Instrument [Line Items] |  |  |
Unamortized Debt Issuance Expense |  | $ 7,500 | $ 2,700
[1] | Unamortized debt issuance costs for the Senior Notes were included in Long-term debt on the Consolidated Balance Sheets.

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