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.