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Short-Term and Long-Term Loans - Additional Information (Detail) | 12 Months Ended |  | 0 Months Ended | 12 Months Ended |  |  | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended |  | 0 Months Ended | 12 Months Ended |  | 0 Months Ended |  | 0 Months Ended |  | 0 Months Ended |  | 12 Months Ended | 0 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  | 12 Months Ended | 0 Months Ended |  | 0 Months Ended | 12 Months Ended |  | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended |  |  |  | 12 Months Ended |  | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended |  | 12 Months Ended | 0 Months Ended | 12 Months Ended |  | 0 Months Ended | 12 Months Ended |  |  | 12 Months Ended |  | 12 Months Ended |  |  | 0 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 0 Months Ended |  | 0 Months Ended |  | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended
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Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Nov. 28, 2012 Borrowers USD ($) | Mar. 01, 2013 R1,500 million Nedbank revolving credit facility | Dec. 31, 2014 R1,500 million Nedbank revolving credit facility USD ($) | Dec. 31, 2013 R1,500 million Nedbank revolving credit facility USD ($) | Mar. 01, 2013 R1,500 million Nedbank revolving credit facility ZAR | Sep. 10, 2013 R1,500 million Nedbank revolving credit facility GFI Joint Venture Holdings USD ($) | Jun. 10, 2013 R1,500 million Nedbank revolving credit facility GFI Joint Venture Holdings USD ($) | Mar. 08, 2013 R1,500 million Nedbank revolving credit facility GFI Joint Venture Holdings USD ($) | Sep. 10, 2013 R1,500 million Nedbank revolving credit facility Gold Fields Operations USD ($) | Jun. 10, 2013 R1,500 million Nedbank revolving credit facility Gold Fields Operations USD ($) | Mar. 08, 2013 R1,500 million Nedbank revolving credit facility Gold Fields Operations USD ($) | Dec. 31, 2014 $200 million non-revolving senior secured term loan USD ($) | Dec. 31, 2013 $200 million non-revolving senior secured term loan USD ($) | Sep. 22, 2010 $200 million non-revolving senior secured term loan Gold Fields La Cima USD ($) | Sep. 17, 2010 $200 million non-revolving senior secured term loan Gold Fields La Cima USD ($) | Dec. 31, 2014 $200 million non-revolving senior secured term loan Gold Fields La Cima USD ($) Installment | Dec. 31, 2013 $200 million non-revolving senior secured term loan Gold Fields La Cima USD ($) | Dec. 19, 2014 $200 million non-revolving senior secured term loan Gold Fields La Cima USD ($) | Dec. 19, 2014 La Cima Revolving Senior Secured Credit Facility USD ($) | Dec. 31, 2014 La Cima Revolving Senior Secured Credit Facility USD ($) | Dec. 19, 2014 La Cima Revolving Senior Secured Credit Facility USD ($) | Jan. 19, 2015 La Cima Revolving Senior Secured Credit Facility Subsequent Event USD ($) | Jan. 19, 2015 La Cima Revolving Senior Secured Credit Facility Subsequent Event USD ($) | Dec. 16, 2014 La Cima Revolving Senior Secured Credit Facility Gold Fields La Cima | Dec. 16, 2014 La Cima Revolving Senior Secured Credit Facility Gold Fields La Cima USD ($) | Sep. 30, 2010 $1 billion notes issue Orogen Investments SA (Luxembourg) USD ($) | Sep. 30, 2010 $1 billion notes issue Orogen Investments SA (Luxembourg) | Dec. 31, 2014 $1 billion notes issue Sibanye Gold Limited [Member] | Dec. 31, 2010 $70 million senior secured revolving credit facility | Dec. 31, 2010 $70 million senior secured revolving credit facility | Dec. 31, 2014 $70 million senior secured revolving credit facility USD ($) | May 06, 2014 $70 million senior secured revolving credit facility USD ($) | Dec. 22, 2010 $70 million senior secured revolving credit facility USD ($) | Dec. 31, 2014 $70 million senior secured revolving credit facility Amended Facility USD ($) | Dec. 31, 2014 $70 million senior secured revolving credit facility Gold Fields Ghana Limited USD ($) | Dec. 31, 2013 $70 million senior secured revolving credit facility Gold Fields Ghana Limited USD ($) | Dec. 22, 2010 Senior Secured Credit Facility Fiscal Year Twenty Twelve [Member] USD ($) | Dec. 22, 2010 Senior Secured Credit Facility Fiscal Year Twenty Thirteen [Member] USD ($) | Dec. 31, 2014 $1,510 million term loan and revolving credit facility USD ($) | Dec. 31, 2013 $1,510 million term loan and revolving credit facility USD ($) | Jan. 30, 2013 $1,510 million term loan and revolving credit facility USD ($) | Dec. 31, 2014 $1,510 million term loan and revolving credit facility Gold Fields Orogen Holding Limited [Member] USD ($) | Dec. 31, 2013 $1,510 million term loan and revolving credit facility Gold Fields Orogen Holding Limited [Member] USD ($) | Nov. 28, 2012 The US$ Bridge Facility Borrowers | Nov. 28, 2012 The US$ Bridge Facility Borrowers USD ($) | Feb. 15, 2013 $500 million syndicated revolving credit facility | Dec. 31, 2013 $500 million syndicated revolving credit facility USD ($) | Nov. 28, 2012 $500 million syndicated revolving credit facility USD ($) | Jan. 30, 2013 Bridge Facility | Dec. 31, 2014 Condition One La Cima Revolving Senior Secured Credit Facility | Dec. 31, 2014 Condition Two La Cima Revolving Senior Secured Credit Facility | Dec. 31, 2014 Condition Three [Member] La Cima Revolving Senior Secured Credit Facility | Feb. 15, 2013 $1 billion syndicated revolving credit facility | Dec. 31, 2013 $1 billion syndicated revolving credit facility USD ($) | Feb. 15, 2013 1 billion and 500 million syndicated revolving credit facility | Dec. 31, 2014 Other loans USD ($) | Dec. 31, 2013 Other loans USD ($) | Dec. 31, 2012 Other loans USD ($) | Dec. 31, 2014 Other loans Continuing operations USD ($) | Dec. 31, 2013 Other loans Continuing operations USD ($) | Dec. 31, 2013 Other loans Discontinued operations USD ($) | Dec. 31, 2014 Other loans Short-term credit facilities Continuing operations USD ($) | Dec. 31, 2013 Other loans Short-term credit facilities Continuing operations USD ($) | Dec. 31, 2014 Other loans Short-term credit facilities Discontinued operations USD ($) | Dec. 31, 2013 Other loans Short-term credit facilities Discontinued operations USD ($) | Feb. 18, 2013 Other loans Sibanye Gold Limited [Member] USD ($) | Dec. 12, 2014 Other loans GFI Joint Venture Holdings Rand Merchant Bank USD ($) | Dec. 12, 2014 Other loans GFI Joint Venture Holdings Rand Merchant Bank ZAR | Dec. 31, 2014 Other loans GFI Joint Venture Holdings Rand Merchant Bank USD ($) | Dec. 31, 2014 Other loans GFI Joint Venture Holdings Rand Merchant Bank ZAR | Dec. 12, 2014 Other loans Gold Fields Operations Rand Merchant Bank USD ($) | Dec. 12, 2014 Other loans Gold Fields Operations Rand Merchant Bank ZAR | Dec. 31, 2014 Other loans Gold Fields Operations Rand Merchant Bank USD ($) | Dec. 31, 2014 Other loans Gold Fields Operations Rand Merchant Bank ZAR | Feb. 18, 2013 Other loans long-term revolving credit facilities | Dec. 31, 2014 Other loans long-term revolving credit facilities ZAR | Dec. 31, 2010 Other loans long-term revolving credit facilities ZAR | Dec. 31, 2010 Other loans long-term revolving credit facilities Minimum | Dec. 31, 2010 Other loans long-term revolving credit facilities Maximum | Jun. 19, 2013 Other loans Revolving Credit Facility Matures June Two Thousand Sixteen Rand Merchant Bank | Dec. 31, 2014 Other loans Revolving Credit Facility Matures June Two Thousand Sixteen Rand Merchant Bank | Jun. 19, 2013 Other loans Revolving Credit Facility Matures June Two Thousand Sixteen Rand Merchant Bank USD ($) | Jun. 19, 2013 Other loans Revolving Credit Facility Matures June Two Thousand Sixteen Rand Merchant Bank ZAR | Dec. 20, 2013 Other loans Revolving Credit Facility Matures December Twenty One Twenty Sixteen Standard Bank | Dec. 31, 2014 Other loans Revolving Credit Facility Matures December Twenty One Twenty Sixteen Standard Bank | Dec. 20, 2013 Other loans Revolving Credit Facility Matures December Twenty One Twenty Sixteen Standard Bank USD ($) | Dec. 20, 2013 Other loans Revolving Credit Facility Matures December Twenty One Twenty Sixteen Standard Bank ZAR | Dec. 31, 2014 Other loans Long term credit facility USD ($) | Dec. 31, 2014 Other loans Long term credit facility ZAR | Dec. 31, 2014 Other loans Long term credit facility Minimum | Dec. 31, 2014 Other loans Long term credit facility Maximum | Nov. 28, 2012 Other loans Rand bridge loan facilities Sibanye Gold ZAR | Dec. 31, 2014 Five Year Revolving Credit Facility Facility B [Member] | Jan. 30, 2013 Five Year Revolving Credit Facility Facility B [Member] USD ($) | Nov. 28, 2012 Five Year Revolving Credit Facility Borrowers Facility B [Member] USD ($) | Nov. 28, 2012 Five Year Revolving Credit Facility GFI Joint Venture Holdings Facility B [Member] | Dec. 31, 2014 Five Year Revolving Credit Facility Condition One Facility B [Member] | Dec. 31, 2014 Five Year Revolving Credit Facility Condition Two Facility B [Member] | Dec. 31, 2014 Five Year Revolving Credit Facility Condition Three [Member] Facility B [Member] | Dec. 31, 2014 Three Year Revolving Credit Facility Facility A [Member] | Jan. 30, 2013 Three Year Revolving Credit Facility Facility A [Member] USD ($) | Dec. 31, 2014 Three Year Revolving Credit Facility Facility C [Member] | Nov. 28, 2012 Three Year Revolving Credit Facility Borrowers Facility A [Member] USD ($) | Nov. 28, 2012 Three Year Revolving Credit Facility GFI Joint Venture Holdings Facility A [Member] | Jul. 22, 2013 Three Year Revolving Credit Facility GFI Joint Venture Holdings Facility A [Member] USD ($) | Jul. 22, 2013 Three Year Revolving Credit Facility GFI Joint Venture Holdings Facility C [Member] | Jul. 22, 2013 Three Year Revolving Credit Facility GFI Joint Venture Holdings Facility C [Member] USD ($) | Jun. 18, 2014 Three Year Revolving Credit Facility $1,510 million term loan and revolving credit facility Facility A [Member] USD ($) | Jun. 18, 2014 Three Year Revolving Credit Facility $1,510 million term loan and revolving credit facility Facility C [Member] USD ($) | Dec. 31, 2014 Three Year Revolving Credit Facility $1,510 million term loan and revolving credit facility Facility C [Member] | Jun. 18, 2014 Three Year Revolving Credit Facility $1,510 million term loan and revolving credit facility Revolving Credit Facility Matures November 28, 2015 Facility A [Member] USD ($) | Jun. 18, 2014 Three Year Revolving Credit Facility $1,510 million term loan and revolving credit facility Revolving Credit Facility Matures November 28, 2017 Facility A [Member] USD ($) | Dec. 31, 2014 Three Year Revolving Credit Facility Condition One Facility C [Member] | Dec. 31, 2014 Three Year Revolving Credit Facility Condition Two Facility C [Member] | Dec. 31, 2014 Three Year Revolving Credit Facility Condition Three [Member] Facility C [Member]
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Date of cancellation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Dec. 19, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Feb. 15, 2013 |  |  | Jan. 30, 2013 |  |  |  | Feb. 15, 2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility refinance description |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | On February 15, 2013, this facility was refinanced by drawing down under the $1,510 million term loan and revolving credit facility as detailed in 16(g). |  |  |  |  |  |  |  |  | On February 15, 2013, the $1 billion and the $500 million syndicated revolving credit facilities were refinanced by drawing down $720.0 million under this facility. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | On February 18, 2013, these facilities were refinanced by drawing down under the Rand bridge loan facilities as detailed below and were also cancelled on February 18, 2013. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term revolving credit facility |  |  |  | $ 900,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / dei_LegalEntityAxis = gfi_OrogenGfoAndGfiJointVenturesHoldingPtyLimitedMember |  |  |  | 1,500,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LineOfCreditFacilityAxis = gfi_NedbankRevolvingCreditFacilityMember |  |  |  |  |  |  |  |  |  | $ 200,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_NonRevolvingSeniorSecuredTermLoanMember / dei_LegalEntityAxis = gfi_GoldFieldsLaCimaMember |  |  |  |  |  |  |  |  |  | $ 200,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_LaCimaRevolvingSeniorSecuredCreditFacilityMember / dei_LegalEntityAxis = gfi_GoldFieldsLaCimaMember |  |  |  |  |  |  | $ 70,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_SeniorSecuredCreditFacilityMember | $ 60,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_SeniorSecuredCreditFacilityMember |  |  |  | $ 43,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_SeniorSecuredCreditFacilityFiscalYearTwentyTwelveMember | $ 35,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_SeniorSecuredCreditFacilityFiscalYearTwentyThirteenMember |  |  | $ 1,440,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_TermLoanAndRevolvingCreditFacilityMember |  |  |  | $ 600,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_BridgeLoanFacilityMember / dei_LegalEntityAxis = gfi_OrogenGfoAndGfiJointVenturesHoldingPtyLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_LineOfCreditFacilityAxis = gfi_LongtermRevolvingCreditFacilitiesMember | 3,500,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_LineOfCreditFacilityAxis = gfi_LongtermRevolvingCreditFacilitiesMember |  |  |  |  | $ 43,300,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = gfi_RandMerchantBankMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_LineOfCreditFacilityAxis = gfi_RevolvingCreditFacilityMaturesJuneTwentyTwoThousandSixteenMember | 500,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = gfi_RandMerchantBankMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_LineOfCreditFacilityAxis = gfi_RevolvingCreditFacilityMaturesJuneTwentyTwoThousandSixteenMember |  |  | $ 43,300,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = gfi_StandardBankGroupLtdMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_LineOfCreditFacilityAxis = gfi_RevolvingCreditFacilityMaturesDecemberTwentyOneTwoThousandSixteenMember | 500,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = gfi_StandardBankGroupLtdMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_LineOfCreditFacilityAxis = gfi_RevolvingCreditFacilityMaturesDecemberTwentyOneTwoThousandSixteenMember |  |  |  |  | 6,000,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / invest_InvestmentIssuerAxis = gfi_SibanyeGoldMember / us-gaap_LineOfCreditFacilityAxis = gfi_RandBridgeLoanFacilitiesMember |  | $ 720,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = gfi_CreditFacilityOneMember / us-gaap_LongtermDebtTypeAxis = gfi_FiveYearRevolvingCreditFacilityMember | $ 450,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = gfi_CreditFacilityOneMember / dei_LegalEntityAxis = gfi_OrogenGfoAndGfiJointVenturesHoldingPtyLimitedMember / us-gaap_LongtermDebtTypeAxis = gfi_FiveYearRevolvingCreditFacilityMember |  |  |  |  |  | $ 720,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = gfi_CreditFacilityThreeMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember |  | $ 450,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = gfi_CreditFacilityThreeMember / dei_LegalEntityAxis = gfi_OrogenGfoAndGfiJointVenturesHoldingPtyLimitedMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember |  | $ 100,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = gfi_CreditFacilityThreeMember / dei_LegalEntityAxis = gfi_GfiJointVenturesHoldingPtyLimitedMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember |  | $ 620,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = gfi_CreditFacilityTwoMember / dei_LegalEntityAxis = gfi_GfiJointVenturesHoldingPtyLimitedMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember |  |  |  |  |  |  |  |
Line of credit facility, additional interest above LIBOR/JIBAR |  |  |  |  |  | 2.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LineOfCreditFacilityAxis = gfi_NedbankRevolvingCreditFacilityMember |  |  |  |  |  |  |  |  |  |  |  | 2.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = gfi_NonRevolvingSeniorSecuredTermLoanMember / dei_LegalEntityAxis = gfi_GoldFieldsLaCimaMember |  |  |  |  | 1.625%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = gfi_LaCimaRevolvingSeniorSecuredCreditFacilityMember |  |  |  |  |  |  |  |  |  | 2.40%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = gfi_SeniorSecuredCreditFacilityMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = gfi_RandMerchantBankMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_LineOfCreditFacilityAxis = gfi_RevolvingCreditFacilityMaturesJuneTwentyTwoThousandSixteenMember |  |  |  | 2.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = gfi_StandardBankGroupLtdMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_LineOfCreditFacilityAxis = gfi_RevolvingCreditFacilityMaturesDecemberTwentyOneTwoThousandSixteenMember |  |  |  |  |  |  |  |  | 2.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = gfi_CreditFacilityOneMember / us-gaap_LongtermDebtTypeAxis = gfi_FiveYearRevolvingCreditFacilityMember |  |  |  |  |  |  | 2.45%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = gfi_CreditFacilityThreeMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember |  | 2.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = gfi_CreditFacilityTwoMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit interest rate description |  |  |  |  |  | Interest at JIBAR plus a margin of 2.50% per annum. |  |  |  |  |  |  |  |  |  |  |  |  | The loan bore interest at LIBOR plus a margin of 2.00% per annum. |  |  |  | The loan bears interest at LIBOR plus a margin of 1.625% per annum. |  |  |  |  |  |  |  |  |  |  | The loan bears interest at LIBOR plus a margin of 2.40% per annum. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | JIBAR plus 2.5% |  |  |  | JIBAR plus 2.75% |  |  |  |  |  |  |  | Facility B bear interest at LIBOR plus an initial margin of 2.25% per annum |  |  |  |  |  |  | Facility A bear interest at LIBOR plus an initial margin of 2.45% per annum |  | Facility C bear interest at LIBOR plus an intitial margin of 2.00%. |  |  |  |  |  |  |  |  |  |  |  |  |
Long and short-term loans raised | 463,900,000 us-gaap_ProceedsFromIssuanceOfDebt | 3,177,700,000 us-gaap_ProceedsFromIssuanceOfDebt | 936,300,000 us-gaap_ProceedsFromIssuanceOfDebt |  |  |  |  |  | 22,800,000 us-gaap_ProceedsFromIssuanceOfDebt / dei_LegalEntityAxis = gfi_GfiJointVenturesHoldingPtyLimitedMember / us-gaap_LineOfCreditFacilityAxis = gfi_NedbankRevolvingCreditFacilityMember | 17,200,000 us-gaap_ProceedsFromIssuanceOfDebt / dei_LegalEntityAxis = gfi_GfiJointVenturesHoldingPtyLimitedMember / us-gaap_LineOfCreditFacilityAxis = gfi_NedbankRevolvingCreditFacilityMember | 37,700,000 us-gaap_ProceedsFromIssuanceOfDebt / dei_LegalEntityAxis = gfi_GfiJointVenturesHoldingPtyLimitedMember / us-gaap_LineOfCreditFacilityAxis = gfi_NedbankRevolvingCreditFacilityMember | 22,800,000 us-gaap_ProceedsFromIssuanceOfDebt / dei_LegalEntityAxis = gfi_GoldFieldsOperationsMember / us-gaap_LineOfCreditFacilityAxis = gfi_NedbankRevolvingCreditFacilityMember | 17,200,000 us-gaap_ProceedsFromIssuanceOfDebt / dei_LegalEntityAxis = gfi_GoldFieldsOperationsMember / us-gaap_LineOfCreditFacilityAxis = gfi_NedbankRevolvingCreditFacilityMember | 37,700,000 us-gaap_ProceedsFromIssuanceOfDebt / dei_LegalEntityAxis = gfi_GoldFieldsOperationsMember / us-gaap_LineOfCreditFacilityAxis = gfi_NedbankRevolvingCreditFacilityMember |  |  | 200,000,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_DebtInstrumentAxis = gfi_NonRevolvingSeniorSecuredTermLoanMember / dei_LegalEntityAxis = gfi_GoldFieldsLaCimaMember |  |  |  |  | 42,000,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_DebtInstrumentAxis = gfi_LaCimaRevolvingSeniorSecuredCreditFacilityMember | 42,000,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_DebtInstrumentAxis = gfi_LaCimaRevolvingSeniorSecuredCreditFacilityMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 41,500,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_DebtInstrumentAxis = gfi_TermLoanAndRevolvingCreditFacilityMember / dei_LegalEntityAxis = gfi_GoldFieldsOrogenHoldingLimitedMember | 173,000,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_DebtInstrumentAxis = gfi_TermLoanAndRevolvingCreditFacilityMember / dei_LegalEntityAxis = gfi_GoldFieldsOrogenHoldingLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 345,400,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember | 2,094,200,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember | 542,400,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 299,200,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_CreditFacilityAxis = gfi_ShortTermCreditFacilitiesMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember | 2,094,200,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_CreditFacilityAxis = gfi_ShortTermCreditFacilitiesMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember | 0 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_CreditFacilityAxis = gfi_ShortTermCreditFacilitiesMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 25,400,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_CreditFacilityAxis = gfi_ShortTermCreditFacilitiesMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |  | 23,100,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_CreditFacilityAxis = gfi_RandMerchantBankMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / dei_LegalEntityAxis = gfi_GfiJointVenturesHoldingPtyLimitedMember | 250,000,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_CreditFacilityAxis = gfi_RandMerchantBankMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / dei_LegalEntityAxis = gfi_GfiJointVenturesHoldingPtyLimitedMember |  |  | 23,100,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_CreditFacilityAxis = gfi_RandMerchantBankMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / dei_LegalEntityAxis = gfi_GoldFieldsOperationsMember | 250,000,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_CreditFacilityAxis = gfi_RandMerchantBankMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / dei_LegalEntityAxis = gfi_GoldFieldsOperationsMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 120,000,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_CreditFacilityAxis = gfi_CreditFacilityThreeMember / us-gaap_DebtInstrumentAxis = gfi_TermLoanAndRevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember | 670,000,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_CreditFacilityAxis = gfi_CreditFacilityTwoMember / us-gaap_DebtInstrumentAxis = gfi_TermLoanAndRevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember |  | 75,000,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_CreditFacilityAxis = gfi_CreditFacilityThreeMember / us-gaap_DebtInstrumentAxis = gfi_TermLoanAndRevolvingCreditFacilityMember / us-gaap_LineOfCreditFacilityAxis = gfi_RevolvingCreditFacilityMaturesNovemberTwentyEightTwoThousandAndFifteenMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember | 45,000,000 us-gaap_ProceedsFromIssuanceOfDebt / us-gaap_CreditFacilityAxis = gfi_CreditFacilityThreeMember / us-gaap_DebtInstrumentAxis = gfi_TermLoanAndRevolvingCreditFacilityMember / us-gaap_LineOfCreditFacilityAxis = gfi_RevolvingCreditFacilityMaturesNovemberTwentyEightTwoThousandAndSeventeenMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember |  |  |
Principal payments schedule |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | The facility amount was repayable in 20 equal quarterly instalments of $10 million each. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of equal quarterly installments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 gfi_NumberOfEqualQuarterlyInstallments / us-gaap_DebtInstrumentAxis = gfi_NonRevolvingSeniorSecuredTermLoanMember / dei_LegalEntityAxis = gfi_GoldFieldsLaCimaMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Periodic payment, Principal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,000,000 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = gfi_NonRevolvingSeniorSecuredTermLoanMember / dei_LegalEntityAxis = gfi_GoldFieldsLaCimaMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long and short-term loans repaid | 591,800,000 us-gaap_RepaymentsOfDebt | 2,971,300,000 us-gaap_RepaymentsOfDebt | 975,900,000 us-gaap_RepaymentsOfDebt |  |  |  |  |  |  |  |  |  |  |  | 70,000,000 us-gaap_RepaymentsOfDebt / us-gaap_DebtInstrumentAxis = gfi_NonRevolvingSeniorSecuredTermLoanMember | 40,000,000 us-gaap_RepaymentsOfDebt / us-gaap_DebtInstrumentAxis = gfi_NonRevolvingSeniorSecuredTermLoanMember |  |  | 30,000,000 us-gaap_RepaymentsOfDebt / us-gaap_DebtInstrumentAxis = gfi_NonRevolvingSeniorSecuredTermLoanMember / dei_LegalEntityAxis = gfi_GoldFieldsLaCimaMember | 40,000,000 us-gaap_RepaymentsOfDebt / us-gaap_DebtInstrumentAxis = gfi_NonRevolvingSeniorSecuredTermLoanMember / dei_LegalEntityAxis = gfi_GoldFieldsLaCimaMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 189,000,000 us-gaap_RepaymentsOfDebt / us-gaap_DebtInstrumentAxis = gfi_TermLoanAndRevolvingCreditFacilityMember / dei_LegalEntityAxis = gfi_GoldFieldsOrogenHoldingLimitedMember | 119,500,000 us-gaap_RepaymentsOfDebt / us-gaap_DebtInstrumentAxis = gfi_TermLoanAndRevolvingCreditFacilityMember / dei_LegalEntityAxis = gfi_GoldFieldsOrogenHoldingLimitedMember |  |  |  | 104,000,000 us-gaap_RepaymentsOfDebt / us-gaap_DebtInstrumentAxis = gfi_SyndicatedRevolvingLoanFacilityMember |  |  |  |  |  |  | 666,000,000 us-gaap_RepaymentsOfDebt / us-gaap_DebtInstrumentAxis = us-gaap_RevolvingCreditFacilityMember |  |  |  |  | 297,800,000 us-gaap_RepaymentsOfDebt / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember | 2,041,800,000 us-gaap_RepaymentsOfDebt / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember | 503,400,000 us-gaap_RepaymentsOfDebt / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 276,200,000 us-gaap_RepaymentsOfDebt / us-gaap_CreditFacilityAxis = gfi_ShortTermCreditFacilitiesMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember | 2,041,800,000 us-gaap_RepaymentsOfDebt / us-gaap_CreditFacilityAxis = gfi_ShortTermCreditFacilitiesMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember | 0 us-gaap_RepaymentsOfDebt / us-gaap_CreditFacilityAxis = gfi_ShortTermCreditFacilitiesMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 164,000,000 us-gaap_RepaymentsOfDebt / us-gaap_CreditFacilityAxis = gfi_ShortTermCreditFacilitiesMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  | 10,800,000 us-gaap_RepaymentsOfDebt / us-gaap_CreditFacilityAxis = gfi_RandMerchantBankMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / dei_LegalEntityAxis = gfi_GfiJointVenturesHoldingPtyLimitedMember | 125,000,000 us-gaap_RepaymentsOfDebt / us-gaap_CreditFacilityAxis = gfi_RandMerchantBankMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / dei_LegalEntityAxis = gfi_GfiJointVenturesHoldingPtyLimitedMember |  |  | 10,800,000 us-gaap_RepaymentsOfDebt / us-gaap_CreditFacilityAxis = gfi_RandMerchantBankMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / dei_LegalEntityAxis = gfi_GoldFieldsOperationsMember | 125,000,000 us-gaap_RepaymentsOfDebt / us-gaap_CreditFacilityAxis = gfi_RandMerchantBankMember / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / dei_LegalEntityAxis = gfi_GoldFieldsOperationsMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt maturity period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  | 3 years | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, outstanding |  |  |  |  |  | 129,800,000 us-gaap_LineOfCredit / us-gaap_LineOfCreditFacilityAxis = gfi_NedbankRevolvingCreditFacilityMember | 145,100,000 us-gaap_LineOfCredit / us-gaap_LineOfCreditFacilityAxis = gfi_NedbankRevolvingCreditFacilityMember |  |  |  |  |  |  |  |  |  |  |  |  |  | 40,000,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = gfi_NonRevolvingSeniorSecuredTermLoanMember / dei_LegalEntityAxis = gfi_GoldFieldsLaCimaMember |  |  | 42,000,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = gfi_LaCimaRevolvingSeniorSecuredCreditFacilityMember |  |  |  |  |  |  |  |  |  | 35,000,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = gfi_SeniorSecuredCreditFacilityMember |  |  | 35,000,000 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = gfi_AmendedTermFacilityMember / us-gaap_DebtInstrumentAxis = gfi_SeniorSecuredCreditFacilityMember | 35,000,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = gfi_SeniorSecuredCreditFacilityMember / dei_LegalEntityAxis = gfi_GoldFieldsGhanaLimitedMember | 35,000,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = gfi_SeniorSecuredCreditFacilityMember / dei_LegalEntityAxis = gfi_GoldFieldsGhanaLimitedMember |  |  | 626,000,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = gfi_TermLoanAndRevolvingCreditFacilityMember | 773,500,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = gfi_TermLoanAndRevolvingCreditFacilityMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 65,200,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember | 46,500,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember | 350,000,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember |  |  |  |  |  |  |  | 142,400,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / dei_LegalEntityAxis = gfi_SibanyeGoldLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 21,600,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_LineOfCreditFacilityAxis = gfi_LongTermCreditFacilityMember | 250,000,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_LineOfCreditFacilityAxis = gfi_LongTermCreditFacilityMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility refinanced amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 150,000,000 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_LaCimaRevolvingSeniorSecuredCreditFacilityMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  | 75,000,000 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_LaCimaRevolvingSeniorSecuredCreditFacilityMember / dei_LegalEntityAxis = gfi_GoldFieldsLaCimaMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000,000 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / us-gaap_DebtInstrumentAxis = gfi_SyndicatedRevolvingLoanFacilityMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility utilization description |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Less than or equal to $66,666,666 | Greater than $66,666,666 and less than or equal to $133,333,333 | Greater than $133,333,333 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Less than or equal to 33 1/3% | Greater than 33 1/3% and less than or equal to 66 2/3% | Greater than 66 2/3% |  |  |  |  |  |  |  |  |  |  |  |  |  | Less than or equal to 33 1/3% | Greater than 33 1/3% and less than or equal to 66 2/3% | Greater than 66 2/3%
Line of credit facility utilization fee percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.075%gfi_LineOfCreditUtilizationFeeRate / us-gaap_CreditFacilityAxis = gfi_LaCimaRevolvingSeniorSecuredCreditFacilityMember / us-gaap_DebtInstrumentAxis = gfi_ConditionOneMember | 0.15%gfi_LineOfCreditUtilizationFeeRate / us-gaap_CreditFacilityAxis = gfi_LaCimaRevolvingSeniorSecuredCreditFacilityMember / us-gaap_DebtInstrumentAxis = gfi_ConditionTwoMember | 0.25%gfi_LineOfCreditUtilizationFeeRate / us-gaap_CreditFacilityAxis = gfi_LaCimaRevolvingSeniorSecuredCreditFacilityMember / us-gaap_DebtInstrumentAxis = gfi_ConditionThreeMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.20%gfi_LineOfCreditUtilizationFeeRate / us-gaap_CreditFacilityAxis = gfi_CreditFacilityOneMember / us-gaap_DebtInstrumentAxis = gfi_ConditionOneMember / us-gaap_LongtermDebtTypeAxis = gfi_FiveYearRevolvingCreditFacilityMember | 0.40%gfi_LineOfCreditUtilizationFeeRate / us-gaap_CreditFacilityAxis = gfi_CreditFacilityOneMember / us-gaap_DebtInstrumentAxis = gfi_ConditionTwoMember / us-gaap_LongtermDebtTypeAxis = gfi_FiveYearRevolvingCreditFacilityMember | 0.60%gfi_LineOfCreditUtilizationFeeRate / us-gaap_CreditFacilityAxis = gfi_CreditFacilityOneMember / us-gaap_DebtInstrumentAxis = gfi_ConditionThreeMember / us-gaap_LongtermDebtTypeAxis = gfi_FiveYearRevolvingCreditFacilityMember |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.15%gfi_LineOfCreditUtilizationFeeRate / us-gaap_CreditFacilityAxis = gfi_CreditFacilityTwoMember / us-gaap_DebtInstrumentAxis = gfi_ConditionOneMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember | 0.30%gfi_LineOfCreditUtilizationFeeRate / us-gaap_CreditFacilityAxis = gfi_CreditFacilityTwoMember / us-gaap_DebtInstrumentAxis = gfi_ConditionTwoMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember | 0.45%gfi_LineOfCreditUtilizationFeeRate / us-gaap_CreditFacilityAxis = gfi_CreditFacilityTwoMember / us-gaap_DebtInstrumentAxis = gfi_ConditionThreeMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember
Line of credit facility commitment fee percentage |  |  |  |  |  | 0.85%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_LineOfCreditFacilityAxis = gfi_NedbankRevolvingCreditFacilityMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.65%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_DebtInstrumentAxis = gfi_LaCimaRevolvingSeniorSecuredCreditFacilityMember |  |  |  |  |  |  |  |  |  | 1.00%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_DebtInstrumentAxis = gfi_SeniorSecuredCreditFacilityMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_LineOfCreditFacilityAxis = gfi_LongTermCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MinimumMember | 1.05%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_DebtInstrumentAxis = gfi_OtherLoansMember / us-gaap_LineOfCreditFacilityAxis = gfi_LongTermCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  | 0.90%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_CreditFacilityAxis = gfi_CreditFacilityOneMember / us-gaap_LongtermDebtTypeAxis = gfi_FiveYearRevolvingCreditFacilityMember |  |  |  |  |  |  |  |  | 0.80%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_CreditFacilityAxis = gfi_CreditFacilityTwoMember / us-gaap_LongtermDebtTypeAxis = gfi_ThreeYearRevolvingCreditFacilityMember |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in line of credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 75,000,000 us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet / us-gaap_DebtInstrumentAxis = gfi_LaCimaRevolvingSeniorSecuredCreditFacilityMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.875%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = gfi_DollarOneBillionNotesIssueMember / dei_LegalEntityAxis = gfi_OrogenInvestmentSaLuxembourgMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date |  |  |  |  | Mar. 07, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Oct. 07, 2020 |  |  | Feb. 21, 2014 |  | May 06, 2017 |  |  |  |  |  |  |  |  |  |  |  |  | Aug. 28, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Nov. 28, 2017 |  |  |  |  |  |  |  | Nov. 28, 2015 |  | Nov. 28, 2015 |  |  |  | Nov. 28, 2017 |  |  |  |  |
Transaction cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 13,600,000 us-gaap_PaymentsOfDebtIssuanceCosts / us-gaap_DebtInstrumentAxis = gfi_DollarOneBillionNotesIssueMember / dei_LegalEntityAxis = gfi_OrogenInvestmentSaLuxembourgMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual guarantee fee percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.25%gfi_AnnualGuaranteeFeePercentage / us-gaap_DebtInstrumentAxis = gfi_DollarOneBillionNotesIssueMember / dei_LegalEntityAxis = gfi_SibanyeGoldLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | The final maturity date of the new facility is three years from the financial close date (May 6, 2017). |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility commitment fee percentage, description |  |  |  |  |  | Every six months on the undrawn amount. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Jun. 20, 2016 |  |  |  | Dec. 21, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Annual Guarantee Fee Percentage + References No definition available. + Details
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- Definition Contract Cancellation Date + References No definition available. + Details
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- Definition Credit Facility Refinance Description + References No definition available. + Details
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- Definition Debt Instrument Utilization Fee Description + References No definition available. + Details
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- Definition Line of Credit, Utilization Fee Rate + References No definition available. + Details
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- Definition Number Of Equal Quarterly Installments + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of the required periodic payments applied to principal. + 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 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Description of the fees for amounts available, but unused under the credit facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Date the credit facility terminates, in CCYY-MM-DD format. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Amount of increase (decrease) of the credit facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 + Details
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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References No definition available. + Details
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- Definition The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations. + References No definition available. + Details
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