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Employee Benefit Plans (Schedule of Fair Value Assumptions for Employee Stock Purchase Plan Awards) (Details) - Employee Stock Purchase Plan
3 Months Ended 9 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]        
Expected life 6 months 6 months 6 months 6 months
Risk-free interest rate 0.05% 1.56% 0.09% 1.71%
Volatility 55.00% 43.00% 95.00% 43.00%