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Supporting Financial Information - Estimated Future Amortization Expense of Intangible Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
2022 (remaining) $ 3,293  
2023 6,585  
2024 6,585  
2025 6,585  
2026 5,851  
Thereafter 15,278  
Intangible assets, net $ 44,177 $ 47,469