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Depreciation of Non-Mining Assets (Detail) | 12 Months Ended
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Dec. 31, 2015
Vehicles |
Property, Plant and Equipment [Line Items] |
Depreciation rate | 20.00%
Computers |
Property, Plant and Equipment [Line Items] |
Depreciation rate | 33.30%
Furniture and Equipment |
Property, Plant and Equipment [Line Items] |
Depreciation rate | 10.00%

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- Definition Depreciation Rate + References No definition available. + Details
Name: | gfi_DepreciationRate
Namespace Prefix: | gfi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_VehiclesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_ComputerEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_FurnitureAndFixturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |