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v2.4.1.9

Deferred Income and Mining Tax Liabilities and Assets (Detail) (USD $) In Millions, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Deferred income and mining tax liabilities |  |
Mining assets | $ 971.4 us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | $ 1,054.5 us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Investments held by environmental trust funds | 2.7 gfi_DeferredTaxLiabilitiesEnvironmentalTrustFunds | 2.7 gfi_DeferredTaxLiabilitiesEnvironmentalTrustFunds
Inventory | 22.7 us-gaap_DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts | 18.2 us-gaap_DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts
Other | 18.1 us-gaap_DeferredTaxLiabilitiesOther | 19.5 us-gaap_DeferredTaxLiabilitiesOther
Gross deferred income and mining tax liabilities | 1,014.90 us-gaap_DeferredIncomeTaxLiabilities | 1,094.90 us-gaap_DeferredIncomeTaxLiabilities
Provisions, including rehabilitation accruals | (118.8)us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals | (103.7)us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
Tax losses | (162.8)us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | (159.8)us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Unredeemed capital expenditure | (867.6)us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther | (883.8)us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther
Other | (7.1)us-gaap_DeferredTaxAssetsOther | (4.1)us-gaap_DeferredTaxAssetsOther
Gross deferred income and mining tax assets | (1,156.3)us-gaap_DeferredTaxAssetsGross | (1,151.4)us-gaap_DeferredTaxAssetsGross
Valuation allowance for deferred tax assets | 386.8 us-gaap_DeferredTaxAssetsValuationAllowance | 330.2 us-gaap_DeferredTaxAssetsValuationAllowance
Total deferred income and mining tax assets | (769.5)us-gaap_DeferredTaxAssetsNet | (821.2)us-gaap_DeferredTaxAssetsNet
Total deferred income and mining tax liabilities | 245.4 us-gaap_DeferredTaxLiabilities | 273.7 us-gaap_DeferredTaxLiabilities
Less: short-term portion of deferred income and mining tax liabilities | (10.3)us-gaap_DeferredTaxLiabilitiesCurrent | (16.0)us-gaap_DeferredTaxLiabilitiesCurrent
Less: short-term portion of deferred income and mining tax assets | 6.9 us-gaap_DeferredTaxAssetsNetCurrent | 29.0 us-gaap_DeferredTaxAssetsNetCurrent
Long-term portion of deferred income and mining taxes | 242.0 us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent | 286.7 us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent
Long-term liabilities | (252.9)us-gaap_DeferredTaxLiabilitiesNoncurrent | (309.3)us-gaap_DeferredTaxLiabilitiesNoncurrent
Long-term assets | 10.9 us-gaap_DeferredTaxAssetsNetNoncurrent | 22.6 us-gaap_DeferredTaxAssetsNetNoncurrent
Long-term portion of deferred income and mining taxes | $ (242.0)us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent | $ (286.7)us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent

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- Definition The amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the tax basis of investment by environmental trust funds and the basis of investment by environmental trust funds computed in accordance with generally accepted accounting principles. + References No definition available. + Details
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- Definition Amount after allocation of valuation allowances of noncurrent deferred tax asset attributable to deductible temporary differences and carryforwards. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31917-109318 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31931-109318 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31928-109318 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31958-109318 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to other deductible tax credit carryforwards not separately disclosed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from reserves and accruals. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31931-109318 + Details
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- Definition Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed after one year (or the normal operating cycle, if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31917-109318 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31931-109318 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31958-109318 + Details
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