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Borrowings (Summary Of Long-Term Borrowings) (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Jun. 30, 2019
Debt Instrument [Line Items]      
Current portion of long-term borrowings $ 14,510    
Utilized 14,798 $ 7,801  
Foreign currency adjustment (288)    
Ending Balance 14,510    
Amended July 2017 [Member] | South Africa [Member]      
Debt Instrument [Line Items]      
Current portion of long-term borrowings 14,510  
Long-term borrowings  
Beginning Balance    
Utilized 14,798    
Foreign currency adjustment (288)    
Ending Balance $ 14,510