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Goodwill - Additional Information (Detail) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2012 South Deep Gold Mine | Dec. 31, 2012 South Africa Rand South Deep Gold Mine | Dec. 31, 2012 Currency Us Dollar South Deep Gold Mine
Goodwill [Line Items] |  |  |  |
Long-term gold price |  |  | 400,000 | 1,500
Exchange rate |  | R8.29 to $1.00 |  |
South Deep life of mine (in years) |  | 80 years |  |
Discount rate, based on a calculated weighted average cost of capital to Gold Fields, lower limit | 3.20% |  |  |
Discount rate, based on a calculated weighted average cost of capital to Gold Fields, upper limit | 5.80% |  |  |

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- Definition Discount Rate Used in Goodwill Impairment Testing, Lower Limit + References No definition available. + Details
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- Definition Discount Rate Used in Goodwill Impairment Testing, Upper Limit + References No definition available. + Details
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- Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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