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Reconciliation of Total Liability for Environmental Rehabilitation (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2013
Provision for environmental rehabilitation |  |  |
Opening balance | $ 373.6 | $ 336.9 |
Addition to liabilities - continuing operations | 10.3 | 6.3 |
Addition to liabilities - discontinued operations |  | 11.8 |
Liabilities settled - continuing operations | (2.5) | (2.7) |
Accretion of liability - continuing operations | 10.4 | 13.9 |
Accretion of liability - discontinued operations | 2.2 | 14.3 |
Yilgarn South asset purchase | 55.0 |  | 55.0
Spin-off of Sibanye Gold | (154.9) |  |
Foreign currency translation adjustment | (24.9) | (6.9) |
Closing balance of provision for environmental rehabilitation | $ 269.2 | $ 373.6 |

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- Definition Amount of accretion expense for continuing operations, which includes, but is not limited to, accretion expense from asset retirement obligations, environmental remediation obligations, and other contingencies. + References No definition available. + Details
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- Definition Amount of the Increase or Decrease in the amount of the asset retirement obligation of continuing operations during the current period for changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation. + References No definition available. + Details
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- Definition Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Environmental Rehabilitation Provision + References No definition available. + Details
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- Definition Amount of the Increase or Decrease in the amount of asset retirement obligations for the period associated with foreign currency translation (to the extent that the entity accounts for the foreign currency effects as a separate component of the change in the liability). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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- Definition Amount of a reclamation and mine closing liability that is associated with a legal obligation for the closure and reclamation of a mine including the removal of buildings, equipment, machinery and other physical remnants of mining, closure of tailings impoundments, leach pads and other mine features, and contouring, covering and revegetation of waste rock piles and other disturbed areas. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.Y.Q2) -URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 + Details
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