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Income Taxes (Details)
3 Months Ended 6 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Reconciliation to income tax at the statutory rate:        
Effective income tax rate (as a percent) 30.30% 33.50% 18.20% 12.70%