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Trade Accounts and Financing Receivables - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Mar. 31, 2022 | Dec. 31, 2021 | Jun. 30, 2021 | Mar. 31, 2020 | Mar. 31, 2022 | Sep. 30, 2021
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |
Value of notes with customer | $ 16,106 |  |  |  | $ 16,106 | $ 7,896
Secured Promissory Note |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |
Value of notes with customer | $ 8,000 | $ 3,700 |  | $ 10,000 | $ 8,000 |
Term of the notes | 1 year | 9 months | 6 months | 3 years |  |
Monthly principal and interest payments |  |  |  | $ 300 |  |
Frequency of payments |  |  |  | monthly |  |
Manufactured Rental Equipment |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |
Promissory notes receivable maximum interest rate | 9.50% |  |  |  | 9.50% |
Promissory notes receivable maturity month and year |  |  |  |  | 2023-07 |
Product |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |
Partially financed product sale |  |  |  | $ 12,500 |  |
Rental Equipment |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |
Partially financed product sale | $ 10,000 |  |  |  |  |

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