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Carrying Value of Equity Investment in Rusoro Mining Limited (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Opening balance | $ 254.4 |  |  |  |
Share of losses recognized | (18.4) |  | (63.1) |  | (0.8)
Closing balance | 237.5 |  | 254.4 |  |
Rusoro Mining Limited |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Opening balance |  |  | 13.2 |  |
Share of losses recognized |  | [1] | (13.4) | [1] |
Other comprehensive income |  |  | 0.2 |  |
Closing balance |  |  |  |  |
[1] | The results of Rusoro for the Gold Fields' fiscal year ended December 31, 2013 are for the twelve months to September 2013 (December 31, 2012: twelve months ended September 30, 2012).

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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=16385135&loc=d3e33749-111570 + Details
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