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Derivative Financial Instruments - Schedule of Offsetting Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Sep. 30, 2019
Derivative Instruments And Hedging Activities Disclosure [Abstract]    
Gross Amount of Recognized Assets $ 903  
Gross Amounts Offset in the Consolidated Balance Sheets 0  
Net Amounts of Assets Presented in the Consolidated Balance Sheets 903 $ 3,064
Gross Amounts Not Offset in the Consolidated Balance Sheets (903)  
Gross Amounts Not Offset in the Consolidated Balance Sheets 0  
Net Amount $ 0