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Significant Accounting Policies - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2013
Significant Accounting Policies [Line Items] |
Minimum likelihood for the realization in order to recognize tax benefit from uncertain tax positions | 50.00%
Leach pad production cycles project recoveries, minimum percentage of the placed recoverable ounces in the first year of leaching | 50.00%
Leach pad production cycles project recoveries, maximum percentage of the placed recoverable ounces in the first year of leaching | 70.00%
Contracts for sales of copper concentrate provisional price, final adjustment period, minimum number of days after delivery | 30 days
Contracts for sales of copper concentrate provisional price, final adjustment period, maximum number of days after delivery | 90 days

X
- Definition The maximum number of days after delivery that the selling price of copper concentrate sales are final, after the final adjustments based on the market prices at the relevant quotation points stipulated in the contract. + References No definition available. + Details
Name: | gfi_FinalAdjustmentPeriodMaximumRange
Namespace Prefix: | gfi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum number of days after delivery that the selling price of copper concentrate sales are final, after the final adjustments based on the market prices at the relevant quotation points stipulated in the contract. + References No definition available. + Details
Name: | gfi_FinalAdjustmentPeriodMinimumRange
Namespace Prefix: | gfi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maximum percentage of the placed recoverable ounces in the first year of leaching. + References No definition available. + Details
Name: | gfi_LeachPadProductionCyclesProjectRecoveriesMaximumPercentage
Namespace Prefix: | gfi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum percentage of the placed recoverable ounces in the first year of leaching. + References No definition available. + Details
Name: | gfi_LeachPadProductionCyclesProjectRecoveriesMinimumPercentage
Namespace Prefix: | gfi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum likelihood for the realization in order to recognize tax benefit from uncertain tax positions. + References No definition available. + Details
Name: | gfi_PercentageOfIncomeTaxExaminationMinimumLikelihoodOfTaxBenefitsBeingRealizedUponSettlement
Namespace Prefix: | gfi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | gfi_SignificantAccountingPoliciesLineItems
Namespace Prefix: | gfi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration