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Investment in Unconsolidated Affiliate - Unconsolidated Affiliate Activity (Details) - USD ($)
$ in Thousands
9 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Schedule of Equity Method Investments [Roll Forward]    
Return of capital contribution from unconsolidated affiliate $ (188) $ (226)
Investment in JV    
Schedule of Equity Method Investments [Roll Forward]    
Balance at beginning of period 4,627 4,494
Equity in earnings of unconsolidated affiliate 113 326
Return of capital contribution from unconsolidated affiliate (188) (226)
Dissolution of unconsolidated affiliate (4,552) 0
Balance at end of period $ 0 $ 4,594