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Commitments And Contingencies (Narrative) (Details)
R in Millions, $ in Millions
6 Months Ended
Dec. 31, 2022
USD ($)
Dec. 31, 2022
ZAR (R)
Nedbank [Member] | Guarantee [Member]    
Guarantor Obligations [Line Items]    
Guarantee amount $ 0.1 R 2.1
Nedbank [Member] | Guarantee [Member] | Minimum [Member]    
Guarantor Obligations [Line Items]    
Commission charge rate 0.40% 0.40%
Nedbank [Member] | Guarantee [Member] | Maximum [Member]    
Guarantor Obligations [Line Items]    
Guarantee amount $ 2.1 R 35.2
Commission charge rate 1.82% 1.82%
Nedbank [Member] | Ceded And Pledged Bank Accounts As Security [Member]    
Guarantor Obligations [Line Items]    
Guarantee amount $ 0.2 R 3.0
RMB Member [Member] | Guarantee [Member]    
Guarantor Obligations [Line Items]    
Guarantee amount $ 1.9 R 33.1
RMB Member [Member] | Guarantee [Member] | Minimum [Member]    
Guarantor Obligations [Line Items]    
Guarantees commission fee percent per annum 3.42%  
RMB Member [Member] | Guarantee [Member] | Maximum [Member]    
Guarantor Obligations [Line Items]    
Guarantees commission fee percent per annum 3.44%