XML 147 R64.htm IDEA: XBRL DOCUMENT v2.4.0.6

Major Items Causing Income Tax Provision to Differ from South African Mining Statutory Rate (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended		12 Months Ended
	Dec. 31, 2010		Dec. 31, 2012		Dec. 31, 2011		Jun. 30, 2010
Income Taxes [Line Items]
Non taxable income/non deductible expenditure	$ 197.6	[1]	$ 116.1	[1]	$ 199.0	[1]	$ (27.4)	[1]
Non taxable income/non deductible expenditure, share-based-compensation	11.6		23.8		24.5
Non taxable income/non deductible expenditure, exploration, feasibility and evaluation costs	25.9		74.4		92.8
Impact of royalty expense on product sales, predetermined percentage	5.00%
Broad-based BEE consortium (BEECO)
Income Taxes [Line Items]
Non taxable income/non deductible expenditure, share-based-compensation	$ 128.0
[1] The $116.1 million (fiscal year ended December 31, 2011: $199.0 million, six months ended December 31, 2010: $197.6 million) non-deductible expenditure comprises mainly $23.8 million (fiscal year ended December 31, 2011: $24.5 million, six months ended December 31, 2010: $11.6 million) share-based-compensation, $nil million (fiscal year ended December 31, 2011: $nil million, six months ended December 31, 2010: $128.0 million) empowerment transaction costs and $74.4 million (fiscal year ended December 31, 2011: $92.8 million, six months ended December 31, 2010: $25.9 million) exploration, feasibility and evaluation costs. There are no other individually significant amounts included in this line item.

X

- Definition

Predetermined percentage to be applied in calculating royalties.

+ References

No definition available.

+ Details

Name:	gfi_ImpactOfRoyaltyExpenseOnProductSalesPercentage
Namespace Prefix:	gfi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	gfi_IncomeTaxesLineItems
Namespace Prefix:	gfi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Total non-deductible costs incurred for purposes of upgrading resources from one category to another or for purposes of upgrading resources to proven and probable reserves, even when in close proximity to the company's development and production stage properties, as well as non-deductible feasibility and evaluation cost

+ References

No definition available.

+ Details

Name:	gfi_IncomeTaxReconciliationNondeductibleExplorationFeasibilityAndEvaluationCost
Namespace Prefix:	gfi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to income that is exempt from income taxes or nondeductable expenses under enacted tax laws.

+ References

No definition available.

+ Details

Name:	gfi_IncomeTaxReconciliationTaxExemptIncomeAndNondeductibleExpense
Namespace Prefix:	gfi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to differences in the deductibility of incentive stock options and other equity-based compensation costs in accordance with generally accepted accounting principles and enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319

+ Details

Name:	us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration