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Stockholders' Equity - Dividends (Details) - $ / shares
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Dividends Paid 1    
Dividends Payable [Line Items]    
Cash dividends paid (in USD per share) $ 0.025 $ 0.10
Dividends Paid 2    
Dividends Payable [Line Items]    
Cash dividends paid (in USD per share) 0.10 0.10
Dividends Paid 3    
Dividends Payable [Line Items]    
Cash dividends paid (in USD per share) 0.10 0.10
Dividends Paid 4    
Dividends Payable [Line Items]    
Cash dividends paid (in USD per share) $ 0.10 $ 0.10