Annual report pursuant to Section 13 and 15(d)

Summary of Operations and Significant Accounting Policies - Contract Liabilities - Additional Information (Details)

v3.22.2.2
Summary of Operations and Significant Accounting Policies - Contract Liabilities - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Contract liabilities $ 7,231 $ 1,624 $ 1,200 $ 1,400
Contract revenue $ 1,600 $ 1,200 $ 1,400