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Inventory (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Sep. 30, 2020
Inventory Disclosure [Abstract]    
Inventory, Raw Materials, Gross $ 5,264 $ 3,232
Inventory, Work in Process, Gross 5,928 4,894
Inventory, Finished Goods, Gross 1,537 1,186
Other Inventory, Gross 58,833 15,577
Inventory, Net $ 71,562 $ 24,889