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Commitments And Contingencies (Narrative) (Details)
R in Millions, $ in Millions
Dec. 31, 2024
USD ($)
Dec. 31, 2024
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 0.47% 0.47%
Nedbank [Member] | Guarantee [Member] | Maximum [Member]    
Guarantor Obligations [Line Items]    
Guarantee amount $ 2.1 R 35.2
Commission charge rate 1.84% 1.84%
Nedbank [Member] | Ceded And Pledged Bank Accounts As Security [Member]    
Guarantor Obligations [Line Items]    
Guarantee amount $ 0.1 R 2.1
RMB Member [Member] | Guarantee [Member]    
Guarantor Obligations [Line Items]    
Guarantee amount $ 1.8 R 33.1
RMB Member [Member] | Guarantee [Member] | Minimum [Member]    
Guarantor Obligations [Line Items]    
Commission charge rate 3.42% 3.42%
RMB Member [Member] | Guarantee [Member] | Maximum [Member]    
Guarantor Obligations [Line Items]    
Commission charge rate 3.44% 3.44%