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v3.21.1

Share-Based Payments - Additional Information (Detail) - $ / shares | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Cost of performance shares granted | $ 0 |  |
Holding period of restricted shares | five years |  |
Maximum number of matching shares | 469,133 | 441,604 | 407,223
Maximum number of matching shares vesting period | 5 years |  |
Gold Fields Limited 2012 Share Plan [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number of share options | 6,982,838 |  |

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