Borrowings (Narrative-Nedbank Facility, Comprising Short-Term Facilities) (Details) R in Millions			1 Months Ended	12 Months Ended
	Jul. 01, 2022 ZAR (R)	Jun. 01, 2021 ZAR (R)	Jul. 31, 2022 ZAR (R)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2022 ZAR (R)	Jun. 30, 2024 ZAR (R)	Sep. 12, 2023 ZAR (R)	Jun. 30, 2023 ZAR (R)	May 31, 2021 ZAR (R)	Nov. 02, 2020 ZAR (R)	Nov. 01, 2020 ZAR (R)
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 76,815,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt interest expense				1,400,000	$ 1,400,000	$ 200,000
Bank Overdrafts [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity				11,276,000
Amount utilized				16,088,000	32,046,000	66,218
Nedbank Limited [Member]
Debt Instrument [Line Items]
Bank guarantee cancelled amount | R	R 60.0
Release cash held pledged in bank | R			R 60.0
Rmb Loan Facilities [Member] | RMB [Member]
Debt Instrument [Line Items]
Guarantee amount | R									R 28.0
South Africa [Member] | Long-term Debt [Member]
Debt Instrument [Line Items]
Interest expense incurred				16,100,000	13,100,000	2,300,000
Prepaid credit facility fees				400,000	800,000	200,000
South Africa [Member] | Nedbank Limited [Member] | Nedbank Short Term Credit Facility [Member] | Domestic Line Of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity				8,600,000				R 156.6
Bank guarantee cancelled amount						$ 13,000,000.0	R 251.0
South Africa [Member] | Nedbank Limited [Member] | Indirect And Derivative Facilities [Member] | Bank Overdrafts [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity				8,600,000				156.6		R 156.6
Amount utilized				$ 100,000	$ 100,000			R 2.1		R 2.1
South Africa [Member] | Nedbank Limited [Member] | Indirect And Derivative Facilities [Member] | Bank Overdrafts [Member] | Amendment [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity | R		R 157.0									R 159.0	R 159.0	R 150.0
Credit facility settled in full and cancelled | R		R 50.0