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Capital Management (Tables) | 12 Months Ended
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Dec. 31, 2018
Text block [abstract] |
Summary of Reconciliation of Net Operating Profit |
|  |  |  |  | United States Dollar |
Figures in millions unless otherwise stated |  | Notes |  |  | 2018 |  |  | 2017 |
Borrowings |  |  | 24 |  |  |  | 2,011.6 |  |  |  | 1,781.5 |
Less: Cash and cash equivalents |  |  | 21 |  |  |  | 399.7 |  |  |  | 479.0 |
Net debt |  |  |  |  |  |  | 1,611.9 |  |  |  | 1,302.5 |
Adjusted EBITDA |  |  |  |  |  |  | 1,111.6 |  |  |  | 1,263.7 |
Net debt to adjusted EBITDA |  |  |  |  |  |  | 1.45 |  |  |  | 1.03 |
Reconciliation of (loss)/profit for the year to adjusted EBITDA: |  |  |  |  |  |  |  |  |  |  |  |
(Loss)/profit for the year (continuing and discontinued operations) |  |  |  |  |  |  | (344.8 | ) |  |  | (7.7 | )
Mining and income taxation from continuing operations |  |  |  |  |  |  | (65.9 | ) |  |  | 173.2 |
Mining and income taxation from discontinued operations |  |  | 12.1 |  |  |  | — |  |  |  | (1.4 | )
Royalties from continuing operations |  |  |  |  |  |  | 62.5 |  |  |  | 62.0 |
Royalties from discontinued operations |  |  | 12.1 |  |  |  | — |  |  |  | 1.1 |
Finance expense from continuing operations |  |  |  |  |  |  | 88.0 |  |  |  | 81.3 |
Investment income from continuing operations |  |  |  |  |  |  | (7.8 | ) |  |  | (5.6 | )
Gain on financial instruments from continuing operations |  |  |  |  |  |  | (21.0 | ) |  |  | (34.4 | )
Foreign exchange loss from continuing operations |  |  |  |  |  |  | (6.4 | ) |  |  | 3.5 |
Amortisation and depreciation from continuing operations |  |  | 2 |  |  |  | 668.4 |  |  |  | 748.1 |
Amortisation and depreciation from discontinued operations |  |  | 12.1 |  |  |  | — |  |  |  | 3.5 |
Share-based payments from continuing operations |  |  |  |  |  |  | 37.5 |  |  |  | 26.8 |
Long-term incentive plan from continuing operations |  |  |  |  |  |  | 1.1 |  |  |  | 5.0 |
Restructuring costs from continuing operations |  |  |  |  |  |  | 113.9 |  |  |  | 9.2 |
Silicosis settlement costs from continuing operations |  |  |  |  |  |  | (4.5 | ) |  |  | 30.2 |
Impairment, net of reversal of impairment of investments and assets from continuing operations |  |  |  |  |  |  | 520.3 |  |  |  | 200.2 |
Profit on disposal of assets from continuing operations |  |  |  |  |  |  | 51.6 |  |  |  | (4.0 | )
Gain on sale of discontinued operation, net of taxation |  |  | 12.1 |  |  |  | — |  |  |  | (16.4 | )
Share of results of equity accounted investees, net of taxation |  |  |  |  |  |  | 13.1 |  |  |  | 1.3 |
Rehabilitation income from continuing operations |  |  | 7 |  |  |  | (0.9 | ) |  |  | (13.5 | )
Realised gain on derivative contracts |  |  |  |  |  |  | 53.8 |  |  |  | — |
Gain on acquisition of Asanko |  |  | 15 |  |  |  | (51.8 | ) |  |  | — |
Other |  |  |  |  |  |  | 4.5 |  |  |  | 1.3 |
|  |  |  |  |  |  | 1,111.6 |  |  |  | 1,263.7 |

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