Credit Facilities - Narrative (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)
Line of Credit Facility [Line Items]
Debt annual amortization amount fiscal year 2026	$ 8,067
Debt annual amortization amount fiscal year 2027	23,750
Secured term loan	131,567
Interest Rate Swap
Line of Credit Facility [Line Items]
Decrease in interest expense	200
Interest Rate Swap Due 2026
Line of Credit Facility [Line Items]
Notional amount of floating-to-fix interest rate swap	$ 74,000
Fixed interest rate applicable to swaps	4.10%
Secured revolving line of credit
Line of Credit Facility [Line Items]
Secured term loan	$ 8,067	$ 12,058
Secured Debt
Line of Credit Facility [Line Items]
Secured term loan	$ 123,500	142,500
Secured Debt | Term loan
Line of Credit Facility [Line Items]
Fixed charge coverage ratio	1.15
Debt annual amortization amount fiscal year 2026	$ 19,000
Debt annual amortization amount fiscal year 2027	23,800
Secured term loan	$ 123,500	142,500
Secured Debt | Term loan | Maximum
Line of Credit Facility [Line Items]
Ratio of funded indebtedness to EBITDA through maturity	4.75
Secured Debt | Term loan | Minimum
Line of Credit Facility [Line Items]
Ratio of funded indebtedness to EBITDA through maturity	2.00
Secured Debt | Term loan | Excess Cash Flow Greater Than or Equal to 2.50
Line of Credit Facility [Line Items]
Percentage of excess cash flow for each year of funded indebtedness to adjusted EBITDA	75.00%
Ratio of funded indebtedness to adjusted EBIDTA	2.50
Secured Debt | Term loan | Excess Cash Flow Less Than 2.50 But Greater Than or Equal to 1.50
Line of Credit Facility [Line Items]
Percentage of excess cash flow for each year of funded indebtedness to adjusted EBITDA	50.00%
Secured Debt | Term loan | Excess Cash Flows Less Than 2.50
Line of Credit Facility [Line Items]
Ratio of funded indebtedness to adjusted EBIDTA	2.50
Secured Debt | Term loan | Excess Cash Flow Equal to 1.50
Line of Credit Facility [Line Items]
Ratio of funded indebtedness to adjusted EBIDTA	1.50
Secured Debt | Term loan | Excess Cash Flow Less Than 1.50
Line of Credit Facility [Line Items]
Percentage of excess cash flow for each year of funded indebtedness to adjusted EBITDA	0.00%
Ratio of funded indebtedness to adjusted EBIDTA	1.50
Secured Debt | Secured revolving line of credit
Line of Credit Facility [Line Items]
Secured term loan	$ 8,100	$ 12,100
Line of credit ceiling	50,000
Unused borrowing capacity	23,600
Secured Debt | Letters of credit
Line of Credit Facility [Line Items]
Remaining borrowing availability	$ 10,000