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Significant Accounting Policies - Additional Information (Details) - Concentration of Credit Risk - Accounts Receivable, Net - Customer
6 Months Ended 12 Months Ended
Mar. 31, 2022
Sep. 30, 2021
Significant Accounting Policies [Line Items]    
Number of major customers 1 1
Customer One    
Significant Accounting Policies [Line Items]    
Concentration risk, percentage 11.60% 12.10%