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Trade Accounts and Financing Receivables - Additional Information (Details) - USD ($)
3 Months Ended
Dec. 31, 2021
Mar. 31, 2020
Sep. 30, 2021
Accounts Notes And Loans Receivable [Line Items]      
Value of notes with customer $ 10,613,000   $ 7,896,000
Term of sales-type lease 6 months    
Future minimum lease payments $ 1,500,000    
Interest income related to lease 6,000    
Secured Promissory Note      
Accounts Notes And Loans Receivable [Line Items]      
Value of notes with customer $ 3,700,000 $ 10,000,000.0  
Term of the notes 9 months 3 years  
Monthly principal and interest payments $ 400,000 $ 300,000  
Frequency of payments   monthly  
Manufactured Rental Equipment      
Accounts Notes And Loans Receivable [Line Items]      
Promissory notes receivable maximum interest rate 8.00%    
Promissory notes receivable maturity month and year 2023-07    
Product      
Accounts Notes And Loans Receivable [Line Items]      
Partially financed product sale   $ 12,500,000