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Borrowings (Summary Of Long-Term Borrowings) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Jun. 30, 2018
Debt Instrument [Line Items]          
Included in current portion of long-term borrowings $ 24,660   $ 24,660   $ 44,695 [1]
Included in long-term borrowings 10,395   10,395   5,469 [1]
Balance as of June 30, 2018     50,164    
Utilzed 3,203   11,004 $ 95,431  
Repaid (13,551) $ (30,881) (23,811) $ (45,141)  
Foreign currency adjustment     (2,302)    
Balance as of Septmeber 30, 2018 35,055   35,055    
Amended July 2017 [Member] | South Africa [Member]          
Debt Instrument [Line Items]          
Included in current portion of long-term borrowings 24,660   24,660   44,695
Included in long-term borrowings 1,712   1,712   5,469
Balance as of June 30, 2018     50,164    
Utilzed        
Repaid     (20,855)    
Foreign currency adjustment     (2,937)    
Balance as of Septmeber 30, 2018 26,372   26,372    
June 2018 Facility [Member] | South Africa [Member]          
Debt Instrument [Line Items]          
Included in current portion of long-term borrowings    
Included in long-term borrowings 8,683   8,683  
Balance as of June 30, 2018        
Utilzed     11,004    
Repaid     (2,956)    
Foreign currency adjustment     635    
Balance as of Septmeber 30, 2018 $ 8,683   $ 8,683    
[1] Derived from restated audited financial statements filed on Form 10-K/A on December 6, 2018