Borrowings (Nedbank Facility Narrative) (Details) $ in Thousands, R in Millions	Dec. 31, 2023 USD ($)	Dec. 31, 2023 ZAR (R)	Jun. 30, 2023 USD ($)	Jun. 30, 2023 ZAR (R)
Debt Instrument [Line Items]
Short-term facility available	$ 103,647
Derivative Facilities [Member]
Debt Instrument [Line Items]
Short-term facility available	15,934
Derivative Facilities [Member] | Nedbank Limited [Member]
Debt Instrument [Line Items]
Short-term facility available	8,600	R 156.6		R 156.6
Line Of Credit	$ 100	R 2.1	$ 100	R 2.1