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Accounts and Long-Term Receivable (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Accounts receivable | $ 19,134 |  | $ 18,698
Long-term receivable | $ 5,598 |  | 7,522
Minimum |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Maturity term of accounts and long term receivables | 1 year |  |
Agreement |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Payments to be received from over next two years | $ 500 |  |
Period of payments to be received for accounts and long term receivable | 2 years |  |
Net revenue recorded | $ 100 |  |
Financing receivables |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Accounts receivable | 5,200 |  | 6,500
Long-term receivable | $ 5,600 |  | 7,500
Long term receivables interest rate | 4.80% |  |
Amount of allowance for credit losses or impairments with a contractual maturity of over one year | $ 0 |  |
Accounts and long-term receivable past due | 0 |  | $ 0
Activity in allowance for credit losses for accounts and long-term receivables | 0 | $ 0 |
Construction Contractor, Receivable, Excluding Contract Retainage, Fiscal Year Maturity [Abstract] |  |  |
2022 | 3,449 |  |
2023 | 4,830 |  |
2024 | 1,560 |  |
2025 | 1,560 |  |
Total payments | 11,399 |  |
Less: unearned interest income | 630 |  |
Total, net of unearned interest income | $ 10,769 |  |
Financing receivables | Minimum |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Maturity term of accounts and long term receivables | 1 year |  |
Financing receivables | Other Income |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Accounts And Long Term Receivable, Interest Income | $ 139 | $ 92 |

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