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Income Taxes (Narrative) (Details)
6 Months Ended
Dec. 31, 2022
USD ($)
Valuation Allowance [Line Items]  
Liability for uncertain tax positions $ 0
Accrued interest related to uncertain tax positions 0
Unrecognized tax benefits 0
Unrecognized tax benefit that would impact effective tax rate $ 0
South Africa [Member]  
Valuation Allowance [Line Items]  
Statutory income tax rate 28.00%
Expected statutory income tax rate 27.00%