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Summary of Accounting Policies - Additional Information (Details) - Client | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Jun. 30, 2021
Customer Concentration Risk | Revenues |  |  |
Summary Of Accounting Policies [Line Items] |  |  |
Number of client individually accounted for 10% or more | 0 | 0 |
Customer Concentration Risk | Accounts Receivable |  |  |
Summary Of Accounting Policies [Line Items] |  |  |
Number of client individually accounted for 10% or more | 0 |  | 1
Customer Concentration Risk | Accounts Receivable | Significant Customer |  |  |
Summary Of Accounting Policies [Line Items] |  |  |
Concentrations of credit risk percentage |  |  | 25.00%
SaaS and Support |  |  |
Summary Of Accounting Policies [Line Items] |  |  |
Majority subscription arrangements term | 1 year |  |
SaaS and Support | Maximum |  |  |
Summary Of Accounting Policies [Line Items] |  |  |
Subscription arrangements term | 3 years |  |
SaaS and Support | Minimum |  |  |
Summary Of Accounting Policies [Line Items] |  |  |
Subscription arrangements term | 1 year |  |

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