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v3.20.2

Credit Facilities - Narrative (Details) | 12 Months Ended |
--- | --- | ---
Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($)
Line of Credit Facility [Line Items] |  |
Debt annual amortization amount fiscal year 2021 | $ 7,000,000 |
2022 | 7,000,000 |
2023 | 8,750,000 |
2024 | 8,750,000 |
2025 | 38,500,000 |
Interest Rate Swap |  |
Line of Credit Facility [Line Items] |  |
Notional amount of floating-to-fix interest rate swap | $ 36,000,000 |
Fixed interest rate applicable to swaps | 1.61% |
Increase in interest expense | $ 200,000 |
Secured Debt |  |
Line of Credit Facility [Line Items] |  |
Bank term loan | 70,000,000 | $ 56,000,000
Secured Debt | Term loan |  |
Line of Credit Facility [Line Items] |  |
Secured term loan, face amount | $ 70,000,000.0 |
Fixed charge coverage ratio | 1.25 |
Ratio of debt to EBITDA | 2.75 |
Debt annual amortization amount fiscal year 2021 | $ 7,000,000.0 |
2022 | 7,000,000.0 |
2023 | 8,750,000 |
2024 | 8,750,000 |
2025 | 8,750,000 |
Bank term loan | $ 70,000,000.0 |
Secured Debt | Term loan | Maximum |  |
Line of Credit Facility [Line Items] |  |
Ratio of debt to EBITDA | 3.75 |
Debt instrument, interest rate, effective percentage | 4.50% |
Secured Debt | Term loan | Minimum |  |
Line of Credit Facility [Line Items] |  |
Debt instrument, interest rate, effective percentage | 2.50% |
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 Flow Less Than 2.50 But Greater Than or Equal to 1.50 | Maximum |  |
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 | 1.5 |
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 | 1.5 |
Secured Debt | Secured revolving line of credit |  |
Line of Credit Facility [Line Items] |  |
Line of credit ceiling | $ 25,000,000.0 |
Bank term loan | 0 |
Remaining borrowing availability | 24,800,000 |
Secured Debt | Letters of credit |  |
Line of Credit Facility [Line Items] |  |
Remaining borrowing availability | $ 5,000,000 |

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