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Derivatives and Risk Management - Non-designated Hedges (Details) - Not designated as hedging instruments - Forward Contracts
R in Millions, $ in Millions
Dec. 30, 2023
USD ($)
Dec. 30, 2023
ZAR (R)
Dec. 31, 2022
USD ($)
Dec. 31, 2022
ZAR (R)
Derivative [Line Items]        
Fair value of designated forward contracts | $ $ 1.5   $ 0.7  
Hedged amount | R   R 27.1   R 12.1