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Business Divestiture (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Discontinued Operations and Disposal Groups [Abstract]        
Gains on product line asset sales and business divestiture $ 92,805 $ 0 $ 100,139 $ 0