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Goodwill and Intangible Assets - (Details) - USD ($)
9 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Goodwill And Intangible Assets Disclosure [Abstract]    
Impairment losses in connection with the goodwill $ 0 $ 0
Impairment losses in connection with the intangible assets 0 $ 0
Goodwill, decreased from effects of foreign currency exchange rates $ 8,300,000