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EQUITY METHOD INVESTMENTS (Details) (USD $) | 12 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2013 | Jan. 31, 2013 | Sep. 30, 2013 | Mar. 31, 2013 | Oct. 31, 2014 vessel | Dec. 31, 1994 tanker | Oct. 31, 2013 | Oct. 02, 2014
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of oil tankers acquired |  |  |  |  |  |  |  |  | 3 fro_NumberOfOilTankersAcquired |  |
Chevron holds options to purchase each vessel on April 1, 2015 |  |  |  |  |  |  |  |  | $ 1 fro_ChevronHoldsOptionsToPurchaseEachVesselOnApril12015 |  |
Treasury Stock, Shares | 6,800,000 us-gaap_TreasuryStockSharesAcquired |  |  |  |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share | $ 1 us-gaap_CommonStockParOrStatedValuePerShare | $ 1 us-gaap_CommonStockParOrStatedValuePerShare |  |  |  |  |  |  |  |  |
Payments to Acquire Interest in Subsidiaries and Affiliates | 0 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates | 6,001,000 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates | 13,298,000 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates |  |  |  |  |  |  |  |
Cash dividends received from equity method investees | 2,000,000 us-gaap_EquityMethodInvestmentDividendsOrDistributions | 0 us-gaap_EquityMethodInvestmentDividendsOrDistributions | 0 us-gaap_EquityMethodInvestmentDividendsOrDistributions |  |  |  |  |  |  |  |
Stock dividends received from equity method investees | 0 fro_ProceedsfromEquityMethodInvestmentStockDividends | 1,300,000 fro_ProceedsfromEquityMethodInvestmentStockDividends | 0 fro_ProceedsfromEquityMethodInvestmentStockDividends |  |  |  |  |  |  |  |
CalPetro Tankers (Bahamas I) Limited [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage (in hundredths) | 0.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_CalpetroTankersBahamasILimitedMember | 100.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_CalpetroTankersBahamasILimitedMember |  |  |  |  |  |  |  |  |
CalPetro Tankers (Bahamas II) Limited [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage (in hundredths) | 0.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_CalpetroTankersBahamasIiLimitedMember | 100.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_CalpetroTankersBahamasIiLimitedMember |  |  |  |  |  |  |  |  |
CalPetro Tankers (IOM) Limited [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage (in hundredths) | 0.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_CalpetroTankersIomLimitedMember | 100.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_CalpetroTankersIomLimitedMember |  |  |  |  |  |  |  |  |
VLCC Chartering Ltd [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage (in hundredths) | 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_VLCCCharteringLtdMember | 0.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_VLCCCharteringLtdMember |  |  |  |  |  |  |  |  |
Frontline 2012 Ltd [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage (in hundredths) | 5.60%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_Frontline2012LtdMember | 5.40%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_Frontline2012LtdMember |  |  |  |  |  |  |  |  |
Issuance ratio, number of shares held in equity method investee |  |  |  |  |  |  |  |  |  | 124.55 fro_Issuancerationumberofsharesheldinequitymethodinvestee / dei_LegalEntityAxis = fro_Frontline2012LtdMember |
Frontline 2012 Ltd [Member] | Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage (in hundredths) |  | 7.90%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |  | 5.40%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember | 6.30%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember | 5.40%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |  |  |  |  |
Shares issued |  |  |  | 34,100,000 us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember | 59,000,000 us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share |  |  |  | $ 2.00 us-gaap_CommonStockParOrStatedValuePerShare / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |  | $ 2.00 us-gaap_CommonStockParOrStatedValuePerShare / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |  |  |  |  |
Subscription price of ordinary shares issued (in dollars per share) |  |  |  | $ 6.60 us-gaap_SaleOfStockPricePerShare / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember | $ 5.25 us-gaap_SaleOfStockPricePerShare / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember | $ 6.60 us-gaap_SaleOfStockPricePerShare / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |  |  |  |  |
Number of shares allocated in transaction in shares |  |  |  |  | 1,143,000 fro_NumberOfSharesAllocatedInTransactionInShares / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |  |  |  |  |  |
Payments to Acquire Interest in Subsidiaries and Affiliates |  |  |  |  | 6,000,000 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |  |  |  |  |  |
Equity method investment, gain loss on dilution of ownership |  |  |  |  |  | 4,700,000 fro_EquityMethodInvestmentGainLossOnDilutionOfOwnership / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember | 5,200,000 fro_EquityMethodInvestmentGainLossOnDilutionOfOwnership / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |  |  |  |
Fair value of equity method investments | 71,300,000 us-gaap_EquityMethodInvestmentQuotedMarketValue / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember | 109,900,000 us-gaap_EquityMethodInvestmentQuotedMarketValue / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |  |  |  |  |  |  |  |  |
Undistributed earnings from equity method investees | 15,700,000 us-gaap_RetainedEarningsUndistributedEarningsFromEquityMethodInvestees / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember | 13,100,000 us-gaap_RetainedEarningsUndistributedEarningsFromEquityMethodInvestees / dei_LegalEntityAxis = fro_Frontline2012LtdMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember |  |  |  |  |  |  |  |  |
Orion Tankers Ltd [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage (in hundredths) |  | 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = fro_OrionTankersLtdMember |  |  |  |  |  |  |  |  |
Equity Method Investment, Amount Sold |  |  |  |  | 242,000 us-gaap_EquityMethodInvestmentSoldCarryingAmount / dei_LegalEntityAxis = fro_OrionTankersLtdMember |  |  |  |  |  |
Avance Gas [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of shares allocated in transaction in shares |  |  |  |  |  |  |  |  |  | 108,069 fro_NumberOfSharesAllocatedInTransactionInShares / dei_LegalEntityAxis = fro_AvanceGasMember |
Value of shares allocated in transaction in Dollars |  |  |  |  |  |  |  |  |  | 1,300,000 fro_ValueofsharesallocatedintransactioninDollars / dei_LegalEntityAxis = fro_AvanceGasMember |
Issuance ratio, number of shares issued per share holding in equity method investee |  |  |  |  |  |  |  |  |  | 1 fro_Issuancerationumberofsharesissuedpershareholdinginequitymethodinvestee / dei_LegalEntityAxis = fro_AvanceGasMember |
Significant Subsidiary Frontline 2012 [Member] |  |  |  |  |  |  |  |  |  |  |
Variable Interest Entity, Not Primary Beneficiary, Disclosures [Abstract] |  |  |  |  |  |  |  |  |  |  |
Current assets | 417,985,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member | 480,177,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member |  |  |  |  |  |  |  |  |
Non current assets | 2,083,783,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member | 1,193,803,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member |  |  |  |  |  |  |  |  |
Current liabilities | 232,877,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member | 108,852,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member |  |  |  |  |  |  |  |  |
Non current liabilities | 821,541,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member | 501,971,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member |  |  |  |  |  |  |  |  |
Net operating revenues | 275,258,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member | 133,900,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member | 140,849,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member |  |  |  |  |  |  |  |
Net operating income | 46,731,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member | 65,755,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member | 25,673,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member |  |  |  |  |  |  |  |
Net loss | 84,511,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member | 69,499,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member | 8,055,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems / dei_LegalEntityAxis = fro_SignificantSubsidiaryFrontline2012Member |  |  |  |  |  |  |  |
Variable Interest Entities CalPetro Bahamas B1, CalPetro Bahamas BII, CalPetro IOM [Member] |  |  |  |  |  |  |  |  |  |  |
Variable Interest Entity, Not Primary Beneficiary, Disclosures [Abstract] |  |  |  |  |  |  |  |  |  |  |
Current assets | 0 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember | 15,457,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember |  |  |  |  |  |  |  |  |
Non current assets | 0 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember | 5,132,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember |  |  |  |  |  |  |  |  |
Current liabilities | 0 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember | 9,981,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember |  |  |  |  |  |  |  |  |
Non current liabilities | 0 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember | 9,525,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember |  |  |  |  |  |  |  |  |
Net operating revenues | 931,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember | 1,651,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember | 2,473,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember |  |  |  |  |  |  |  |
Net operating income | 691,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember | 1,353,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember | 2,155,000 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember |  |  |  |  |  |  |  |
Net loss | (585,000)us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember | (538,000)us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember | (544,000)us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems / dei_LegalEntityAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember |  |  |  |  |  |  |  |
Altair Voyager, Cygnus Voyager and Sirius Voyager [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Vessel sold |  |  |  |  |  |  |  | 3 fro_Numberofvesselswhoseleasewasterminated / fro_VesselsByNameAxis = fro_AltairVoyagerCygnusVoyagerandSiriusVoyagerMember |  |  |
Variable Interest Entities CalPetro Bahamas B1, CalPetro Bahamas BII, CalPetro IOM [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Cash in VIE's |  |  |  |  |  |  |  |  |  |  | 1,300,000 us-gaap_Cash / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember
Restricted cash |  |  |  |  |  |  |  |  |  |  | 700,000 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember
VLCC Chartering Ltd [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Payments to acquire investment |  |  |  |  |  |  |  | 200 us-gaap_PaymentsToAcquireEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = fro_VLCCCharteringLtdMember |  |  |
Variable Interest Entity, Primary Beneficiary | Variable Interest Entities CalPetro Bahamas B1, CalPetro Bahamas BII, CalPetro IOM [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Cash in VIE's |  |  |  |  |  |  |  | 1,300,000 us-gaap_Cash / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |  |
Restricted cash |  |  |  |  |  |  |  | 700,000 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = fro_VariableInterestEntitiesCalpetroBahamasB1CalpetroBahamasBiiCalpetroIomMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |  |

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- Definition Chevron holds options to purchase each vessel on April 1, 2015 + References No definition available. + Details
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