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Fair Value Of Financial Instruments (Outstanding Foreign Exchange Contracts) (Details) - 6 months ended Dec. 31, 2018
$ in Thousands
R / shares
USD ($)
R / item
Foreign Exchange Contract 1 [Member]    
Derivatives, Fair Value [Line Items]    
Notional amount | $   $ 420,000
Strike price | R / item   15.3801
Fair market value price | R / shares R 14.4210  
Maturity Jan. 25, 2019  
Foreign Exchange Contract 2 [Member]    
Derivatives, Fair Value [Line Items]    
Notional amount | $   $ 140,000
Strike price | R / item   15.4386
Fair market value price | R / shares R 14.4704  
Maturity Feb. 22, 2019  
Foreign Exchange Contract 3 [Member]    
Derivatives, Fair Value [Line Items]    
Notional amount | $   $ 420,000
Strike price | R / item   15.4939
Fair market value price | R / shares R 14.5165  
Maturity Mar. 20, 2019  
Foreign Exchange Contract 4 [Member]    
Derivatives, Fair Value [Line Items]    
Notional amount | $   $ 420,000
Strike price | R / item   15.5704
Fair market value price | R / shares R 14.5842  
Maturity Apr. 26, 2019