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v2.4.1.9

Non Cash-Items (Detail) (USD $) In Millions, unless otherwise specified | 0 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 01, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Other Significant Noncash Transactions [Line Items] |  |  |  |  |  |  |
Marked to market gain/(loss) of listed investments |  | $ 6.9 us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax | [1] | $ (1.3)us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax | [1] | $ 18.7 us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax | [1]
Shares issued on acquisition (refer note 3(b)) | 127.3 us-gaap_StockIssuedDuringPeriodValueAcquisitions |  |  |  |  |  |
Yanfolila and Hummingbird |  |  |  |  |  |  |
Other Significant Noncash Transactions [Line Items] |  |  |  |  |  |  |
Disposal value for acquisition |  | 5.1 gfi_NoncashOrPartNoncashDivestitureAcquisitionConsiderationReceivedAndGivenNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = gfi_YanfolilaAndHummingbirdMember |  |  |  |  |
Yanfolila |  |  |  |  |  |  |
Other Significant Noncash Transactions [Line Items] |  |  |  |  |  |  |
Disposal group (refer note 3(c)) |  | (16.0)us-gaap_NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1 / us-gaap_PropertyPlantAndEquipmentByTypeAxis = gfi_YanfolilaMember |  |  |  |  |
Yilgarn South |  |  |  |  |  |  |
Other Significant Noncash Transactions [Line Items] |  |  |  |  |  |  |
Shares issued on acquisition (refer note 3(b)) |  |  |  | 127.3 us-gaap_StockIssuedDuringPeriodValueAcquisitions / us-gaap_BusinessAcquisitionAxis = gfi_YilgarnSouthMember |  |  |
Sibanye Gold Limited [Member] |  |  |  |  |  |  |
Other Significant Noncash Transactions [Line Items] |  |  |  |  |  |  |
Spin-off (refer note 9.1), excluding cash transferred |  |  |  | 927.3 gfi_DisposalGroupIncludingDiscontinuedOperationNetAssetValueDistributedExcludingCashTransferred / dei_LegalEntityAxis = gfi_SibanyeGoldLimitedMember |  |  |
Hummingbird |  |  |  |  |  |  |
Other Significant Noncash Transactions [Line Items] |  |  |  |  |  |  |
Acquisition of investment (refer note 3(c)) |  | $ 21.1 us-gaap_OtherSignificantNoncashTransactionValueOfConsiderationGiven1 / dei_LegalEntityAxis = gfi_HummingbirdMember |  |  |  |  |
[1] | Includes deferred tax of $nil (2013: $1.7 million and 2012: $1.0 million).

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