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Breakdown of Reconciling Items (Parenthetical) (Detail) (Pre-2003 management reporting)	Dec. 31, 2013
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