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Income Taxes (Unrecognized Tax Benefits) (Details)
$ in Thousands
3 Months Ended
Dec. 31, 2019
USD ($)
Unrecognized tax benefits that would impact effective tax rate $ 1,500
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]  
Unrecognized tax benefits, beginning balance 1,713
Decreases related to settlements (7)
Decreases related to expiration of statute of limitations (39)
Unrecognized tax benefits, ending balance 1,667
Maximum  
Unrecognized tax benefits that would increase (decrease) $ 300