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Change in Working Capital (Tables)
12 Months Ended
Dec. 31, 2023
Disclosure Change In Working Capital [abstract]  
Summary of change in working capital
United States Dollar
Figures in millions unless otherwise stated
2023
2022
2021
Inventories
(153.1)
(195.1)
(132.1)
Trade and other receivables
(61.4)
38.5
47.7
Trade and other payables
15.4
22.4
(5.0)
Total change in working capital
(199.1)
(134.2)
(89.4)