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v2.4.1.9

Schedule of Provision for Long-term Cash Incentive Plan (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Long-term cash incentive plan |  |  |
Cash awards raised during the year | $ 8.7 us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense | $ 0 us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense | $ 0 us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense
Balance at close | 8.3 us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability |  |
Key Senior Managers [Member] |  |  |
Long-term cash incentive plan |  |  |
Cash awards raised during the year | 8.7 us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense / us-gaap_TitleOfIndividualAxis = us-gaap_ManagementMember |  |
Changes in estimates | 0.3 gfi_ProvisionForLongTermCashIncentivePlanChangesInEstimates / us-gaap_TitleOfIndividualAxis = us-gaap_ManagementMember |  |
Forfeited awards | (0.3)gfi_ProvisionForLongTermCashIncentivePlanForfeitedAwards / us-gaap_TitleOfIndividualAxis = us-gaap_ManagementMember |  |
Translation adjustment | (0.4)gfi_ProvisionForLongTermCashIncentivePlanTranslationAdjustment / us-gaap_TitleOfIndividualAxis = us-gaap_ManagementMember |  |
Balance at close | $ 8.3 us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability / us-gaap_TitleOfIndividualAxis = us-gaap_ManagementMember |  |

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- Definition Provision for long-term cash incentive plan changes in estimates. + References No definition available. + Details
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- Definition Provision for long-term cash incentive plan forfeited awards. + References No definition available. + Details
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- Definition Provision for long-term cash incentive plan translation adjustment. + References No definition available. + Details
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- Details
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- Definition The compensation expense recognized during the period pertaining to the deferred compensation arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 + Details
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- Definition The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 + Details
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Period Type: | instant

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- Details
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