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Equity-Accounted Investments And Other Long-Term Assets (Schedule Of Calculation Of Gain (Loss) On Disposal) (Details) - USD ($)
 12 Months Ended
Feb. 03, 2021
Apr. 01, 2020
May 03, 2019
Jun. 30, 2021
Jun. 30, 2020
 [1]
Jun. 30, 2019
 [1]
Long Lived Assets Held For Sale Line Items [Line Items]            
Loss on disposal of equity-accounted investment (Note 8)       $ 13,000 $ 0 $ 0
Disposal Of Bank Frick on February 3, 2021 [Member]            
Long Lived Assets Held For Sale Line Items [Line Items]            
Less: transaction costs $ (42,000)          
Less: carrying value (32,892,000)          
Less: release of foreign currency translation reserve from accumulated other comprehensive loss (Note 1 and Note 14) 2,462,000          
Gain (loss) on sale before tax (472,000)          
Disposal Of Bank Frick on February 3, 2021 [Member] | Cash [Member]            
Long Lived Assets Held For Sale Line Items [Line Items]            
Consideration received 18,600,000          
Disposal Of Bank Frick on February 3, 2021 [Member] | Notes Receivable [Member]            
Long Lived Assets Held For Sale Line Items [Line Items]            
Consideration received $ 11,400,000          
Disposal Of DNI On April 1, 2020 [Member]            
Long Lived Assets Held For Sale Line Items [Line Items]            
Gain (loss) on sale before tax   $ 0        
Disposal Of DNI On April 1, 2020 [Member] | Net1 SA [Member]            
Long Lived Assets Held For Sale Line Items [Line Items]            
Utilized capital losses as a result of the disposal of remaining interest   12,000,000.0        
Disposal of 8% Retained Interest In DNI [Member]            
Long Lived Assets Held For Sale Line Items [Line Items]            
Capital gains (loss) tax related to sale     $ 23,900,000      
Valuation allowance related to disposal of 8% interest in DNI     23,900,000      
DNI [Member] | Asset Held-for-sale or Disposed of by Sale [Member] | Net1 SA [Member]            
Long Lived Assets Held For Sale Line Items [Line Items]            
Less: transaction costs   (1,010,000)        
Less: carrying value   (36,508,000)        
Less: release of foreign currency translation reserve from accumulated other comprehensive loss (Note 1 and Note 14)   (11,323,000)        
Gain (loss) on sale before tax   (1,010,000)        
Disposal Group, Including Discontinued Operation, Accrued Income Tax Payable   2,475,000        
Utilization of capital loss carryforwards   (2,475,000)        
Gain (loss) on disposal after tax   (1,010,000)        
DNI [Member] | Asset Held-for-sale or Disposed of by Sale [Member] | Cash [Member] | Net1 SA [Member]            
Long Lived Assets Held For Sale Line Items [Line Items]            
Consideration received   $ 42,477,000        
Investment shares owned   26,886,310        
DNI [Member] | Asset Held-for-sale or Disposed of by Sale [Member] | Notes Receivable [Member] | Cash [Member] | Net1 SA [Member]            
Long Lived Assets Held For Sale Line Items [Line Items]            
Consideration received   $ 5,354,000        
Investment shares owned   3,508,455        
DNI [Member] | Disposal of 8% Retained Interest In DNI [Member]            
Long Lived Assets Held For Sale Line Items [Line Items]            
Consideration received     15,011,000      
Less: equity-method interest sold (Note 10)     14,996,000      
Less: release of foreign currency translation reserve from accumulated other comprehensive loss (Note 1 and Note 14)     162,000      
Gain (loss) on sale before tax     177,000      
Disposal Group, Including Discontinued Operation, Accrued Income Tax Payable     0      
Gain (loss) on disposal after tax     $ 177,000      
[1] <div>Certain amounts have been restated to correct the misstatement discussed in Note 1.</div>