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Dividends - Summary of Dividends (Parenthetical) (Detail) - R / shares | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | [1] | Dec. 31, 2015 | [1] | Dec. 31, 2014
Final Dividend [Member] |  |  |  |
Disclosure of Dividends [Line Items] |  |  |  |
Dividends declared per share |  | R 0.60 | R 0.21 | R 0.20
Dividend declared date | Feb. 16, 2017 |  |  |
Interim Dividend [Member] |  |  |  |
Disclosure of Dividends [Line Items] |  |  |  |
Dividends declared per share | R 0.40 | R 0.50 | R 0.04 |
Approved dividend [member] |  |  |  |
Disclosure of Dividends [Line Items] |  |  |  |
Final dividend approved by the Board, Value | R 0.5 |  |  |
[1] | As Restated - Refer note 40 for further details.

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- Definition The approved dividend to be recognized as distribution to owners per share. + References No definition available. + Details
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Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent disclosure of dividends. + References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Dividends declared date. + References No definition available. + Details
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Namespace Prefix: | gfi_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount, per share, of final dividends as distribution to owners. + References No definition available. + Details
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Namespace Prefix: | gfi_
Data Type: | num:perShareItemType
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Period Type: | duration

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- Definition The amount, per share, of interim dividends as distribution to owners. + References No definition available. + Details
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Data Type: | num:perShareItemType
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- Details
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Namespace Prefix: |
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- Details
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- Details
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Namespace Prefix: |
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Period Type: |