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Breakdown of Reconciling Items (Parenthetical) (Detail) (Pre-2003 management reporting) | Dec. 31, 2013
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Pre-2003 management reporting |
Segment Reporting Information [Line Items] |
Investment treated as available-for-sale investment | 20.00%

X
- Definition Investment Held As Available For Sale Ownership Percentage + References No definition available. + Details
Name: | gfi_InvestmentHeldAsAvailableForSaleOwnershipPercentage
Namespace Prefix: | gfi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration