Commitments And Contingencies (Narrative) (Details) R in Millions, $ in Millions	Dec. 31, 2023 USD ($)	Dec. 31, 2023 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	$ 1.9	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%

Contractual interest rate for funds borrowed, under the debt agreement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

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