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Employee Benefit Plans (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2022
Mar. 31, 2021
Retirement Benefits [Abstract]        
Defined Contribution Plan, Cost $ 1,195 $ 773 $ 2,116 $ 1,479