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Share-based Payments - Summary of Share-based Payment Arrangements Information (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Disclosure of Share-based payment expense recognised in profit or loss [Line items] |  |  |  |  |
Total included in profit or loss for the year | $ 26.8 | $ 14.0 | [1] | $ 10.7 | [1]
Continuing operations [member] |  |  |  |  |
Disclosure of Share-based payment expense recognised in profit or loss [Line items] |  |  |  |  |
Total included in profit or loss for the year | 26.8 | 14.0 |  | 10.7 |
Discontinued operations [member] |  |  |  |  |
Disclosure of Share-based payment expense recognised in profit or loss [Line items] |  |  |  |  |
Total included in profit or loss for the year | 0.6 | 0.4 |  | 0.2 |
Gold Fields Limited 2005 Share Plan [Member] | Continuing operations [member] |  |  |  |  |
Disclosure of Share-based payment expense recognised in profit or loss [Line items] |  |  |  |  |
Total included in profit or loss for the year | 0.0 | 0.0 |  | 0.0 |
Gold Fields Limited 2005 Share Plan [Member] | Discontinued operations [member] |  |  |  |  |
Disclosure of Share-based payment expense recognised in profit or loss [Line items] |  |  |  |  |
Total included in profit or loss for the year | 0.0 | 0.0 |  | 0.0 |
Gold Fields Limited 2012 Share Plan [Member] | Continuing operations [member] |  |  |  |  |
Disclosure of Share-based payment expense recognised in profit or loss [Line items] |  |  |  |  |
Performance Shares | 0.0 | 1.9 |  | 8.0 |
Bonus shares | 0.0 | 0.0 |  | 2.7 |
Gold Fields Limited 2012 Share Plan [Member] | Discontinued operations [member] |  |  |  |  |
Disclosure of Share-based payment expense recognised in profit or loss [Line items] |  |  |  |  |
Performance Shares | 0.0 | 0.0 |  | 0.2 |
Bonus shares | 0.0 | 0.0 |  | 0.0 |
Gold Fields Limited 2012 Share Plan Amended [Member] | Continuing operations [member] |  |  |  |  |
Disclosure of Share-based payment expense recognised in profit or loss [Line items] |  |  |  |  |
Performance Shares | 24.5 | 12.1 |  | 0.0 |
Retention Shares | 2.1 | 0.0 |  | 0.0 |
Restricted/Matching Shares | 0.2 | 0.0 |  | 0.0 |
Gold Fields Limited 2012 Share Plan Amended [Member] | Discontinued operations [member] |  |  |  |  |
Disclosure of Share-based payment expense recognised in profit or loss [Line items] |  |  |  |  |
Performance Shares | 0.6 | 0.4 |  | 0.0 |
Retention Shares | 0.0 | 0.0 |  | 0.0 |
Restricted/Matching Shares | $ 0.0 | $ 0.0 |  | $ 0.0 |
[1] | As Restated - Refer note 40 for further details.

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