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Estimated Capital Allowances (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2013
Gold Fields Arctic Platinum Oy |
Operating Loss Carryforwards [Line Items] |
Maximum number of years losses can be carried forward | 10 years
Abosso Goldfields Limited |
Operating Loss Carryforwards [Line Items] |
Maximum number of years losses can be carried forward | 5 years

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- Details
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