Borrowings (Summary Of Short-Term Credit Facilities) (Details) R in Millions	12 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2022 ZAR (R)	Feb. 04, 2019 USD ($)	Sep. 14, 2018 USD ($)
Short-term Debt [Line Items]
Short-term facility available	$ 119,059,000
Utilized	570,862,000	$ 360,083,000	$ 689,763,000
Overdraft Restricted As To Use For ATM Funding Only [Member]
Short-term Debt [Line Items]
Short-term facility available	85,941,000
Overdraft Facility [Member]
Short-term Debt [Line Items]
Short-term facility available	15,221,000
Beginning Balance	14,245,000	14,814
Facilities acquired in transaction	16,903,000
Utilized	570,862,000	360,083,000
Repaid	(525,459,000)	(365,440,000)
Foreign currency adjustment	(10,333,000)	4,788,000
Ending Balance	66,218,000	14,245,000	14,814
Overdraft Facility [Member] | Overdraft Restricted As To Use For ATM Funding Only [Member]
Short-term Debt [Line Items]
Beginning Balance	14,245,000
Ending Balance	51,338,000	14,245,000
Overdraft Facility [Member] | No Restrictions As To Use [Member]
Short-term Debt [Line Items]
Beginning Balance	0
Ending Balance	14,880,000	0
Indirect And Derivative Facilities [Member]
Short-term Debt [Line Items]
Short-term facility available	17,897,000
Beginning Balance	10,947,000	5,398,000
Guarantees cancelled	(4,240,000)
Utilized	336,000	4,009,000
Foreign currency adjustment	(1,076,000)	1,540,000
Ending Balance	5,967,000	10,947,000	5,398,000
RMB Facility E [Member]
Short-term Debt [Line Items]
Short-term facility available	85,941,000
RMB Facility E [Member] | Overdraft Restricted As To Use For ATM Funding Only [Member]
Short-term Debt [Line Items]
Short-term facility available	85,941,000
RMB Facility E [Member] | Overdraft Facility [Member]
Short-term Debt [Line Items]
Short-term facility available	0
Beginning Balance	14,245,000	14,756,000
Facilities acquired in transaction	0
Utilized	563,588,000	340,655,000
Repaid	(517,948,000)	(346,187,000)
Foreign currency adjustment	(8,547,000)	5,021,000
Ending Balance	$ 51,338,000	14,245,000	14,756,000
Interest rate	8.25%			8.25%
RMB Facility E [Member] | Overdraft Facility [Member] | Overdraft Restricted As To Use For ATM Funding Only [Member]
Short-term Debt [Line Items]
Beginning Balance	$ 14,245,000
Ending Balance	51,338,000	14,245,000
RMB Facility E [Member] | Overdraft Facility [Member] | No Restrictions As To Use [Member]
Short-term Debt [Line Items]
Beginning Balance	0
Ending Balance	0	0
RMB Facility E [Member] | Indirect And Derivative Facilities [Member]
Short-term Debt [Line Items]
Short-term facility available	0
Beginning Balance	0	0
Guarantees cancelled	0
Utilized	0	0
Foreign currency adjustment	0	0
Ending Balance	0	0	0
RMB Indirect [Member]
Short-term Debt [Line Items]
Short-term facility available	8,287,000
RMB Indirect [Member] | Overdraft Restricted As To Use For ATM Funding Only [Member]
Short-term Debt [Line Items]
Short-term facility available	0
RMB Indirect [Member] | Overdraft Facility [Member]
Short-term Debt [Line Items]
Short-term facility available	0
Beginning Balance	0	0
Facilities acquired in transaction	0
Utilized	0	0
Repaid	0	0
Foreign currency adjustment	0	0
Ending Balance	0	0	0
RMB Indirect [Member] | Overdraft Facility [Member] | Overdraft Restricted As To Use For ATM Funding Only [Member]
Short-term Debt [Line Items]
Beginning Balance	0
Ending Balance	0	0
RMB Indirect [Member] | Overdraft Facility [Member] | No Restrictions As To Use [Member]
Short-term Debt [Line Items]
Beginning Balance	0
Ending Balance	0	0
RMB Indirect [Member] | Indirect And Derivative Facilities [Member]
Short-term Debt [Line Items]
Short-term facility available	8,287,000
Beginning Balance	0	0
Guarantees cancelled	0
Utilized	336,000	0
Foreign currency adjustment	(23,000)	0
Ending Balance	313,000	0	0
RMB Connect [Member]
Short-term Debt [Line Items]
Short-term facility available	15,221,000
RMB Connect [Member] | Overdraft Restricted As To Use For ATM Funding Only [Member]
Short-term Debt [Line Items]
Short-term facility available	0
RMB Connect [Member] | Overdraft Facility [Member]
Short-term Debt [Line Items]
Short-term facility available	15,221,000
Beginning Balance	0	0
Facilities acquired in transaction	16,903,000
Utilized	5,929,000	0
Repaid	(6,189,000)	0
Foreign currency adjustment	(1,763,000)	0
Ending Balance	$ 14,880,000	0	0
Interest rate	8.25%			8.25%
RMB Connect [Member] | Overdraft Facility [Member] | Overdraft Restricted As To Use For ATM Funding Only [Member]
Short-term Debt [Line Items]
Beginning Balance	$ 0
Ending Balance	0	0
RMB Connect [Member] | Overdraft Facility [Member] | No Restrictions As To Use [Member]
Short-term Debt [Line Items]
Beginning Balance	0
Ending Balance	14,880,000	0
RMB Connect [Member] | Indirect And Derivative Facilities [Member]
Short-term Debt [Line Items]
Short-term facility available	0
Beginning Balance	0	0
Guarantees cancelled	0
Utilized	0	0
Foreign currency adjustment	0	0
Ending Balance	0	0	0
Nedbank Facilities [Member]
Short-term Debt [Line Items]
Short-term facility available	9,610,000
Nedbank Facilities [Member] | Overdraft Restricted As To Use For ATM Funding Only [Member]
Short-term Debt [Line Items]
Short-term facility available	0
Nedbank Facilities [Member] | Overdraft Facility [Member]
Short-term Debt [Line Items]
Short-term facility available	0
Beginning Balance	0	58,000
Facilities acquired in transaction	0
Utilized	1,345,000	19,428,000
Repaid	(1,322,000)	(19,253,000)
Foreign currency adjustment	(23,000)	(233,000)
Ending Balance	$ 0	0	58,000
Interest rate	0.00%			0.00%
Nedbank Facilities [Member] | Overdraft Facility [Member] | Overdraft Restricted As To Use For ATM Funding Only [Member]
Short-term Debt [Line Items]
Beginning Balance	$ 0
Ending Balance	0	0
Nedbank Facilities [Member] | Overdraft Facility [Member] | No Restrictions As To Use [Member]
Short-term Debt [Line Items]
Beginning Balance	0
Ending Balance	0	0
Nedbank Facilities [Member] | Indirect And Derivative Facilities [Member]
Short-term Debt [Line Items]
Short-term facility available	9,610,000
Beginning Balance	10,947,000	5,398,000
Guarantees cancelled	(4,240,000)
Utilized	0	4,009,000
Foreign currency adjustment	(1,053,000)	1,540,000
Ending Balance	$ 5,654,000	10,947,000	$ 5,398,000
South Africa [Member] | Nedbank Limited [Member] | Overdraft Facility [Member]
Short-term Debt [Line Items]
Short-term facility available | R				R 250.0
South Africa [Member] | Nedbank Facilities [Member] | Overdraft Facility [Member] | Overdraft Restricted As To Use For ATM Funding Only [Member]
Short-term Debt [Line Items]
Total overdraft facilities withdrawn		$ 200,000
South Africa [Member] | Nedbank Facilities [Member] | Overdraft Facility [Member] | Overdraft Restricted As To Use For ATM Funding Only [Member] | Prime Rate [Member]
Short-term Debt [Line Items]
Margin	1.15%
United States [Member] | Bank Frick [Member] | Renewed [Member] | Overdraft Facility [Member]
Short-term Debt [Line Items]
Short-term facility available					$ 20,000,000.0	$ 10,000,000.0