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Unredeemed Capital Expenditure (Parenthetical) (Detail) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Tax Credit Carryforward [Line Items]    
Tax losses available for deduction against future income $ 551,900,000us-gaap_OperatingLossCarryforwards $ 551,700,000us-gaap_OperatingLossCarryforwards
Gold Fields La Cima    
Tax Credit Carryforward [Line Items]    
Tax losses available for deduction against future income $ 0us-gaap_OperatingLossCarryforwards
/ dei_LegalEntityAxis
= gfi_GoldFieldsLaCimaMember
$ 0us-gaap_OperatingLossCarryforwards
/ dei_LegalEntityAxis
= gfi_GoldFieldsLaCimaMember