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Derivative Financial Instruments - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Sep. 30, 2014 T	Jun. 16, 2014
Derivative Financial Instruments [Line Items]
Document Period End Date			Mar. 31, 2015
Derivative, Notional Amount	$ 8,685,000,000invest_DerivativeNotionalAmount		$ 8,685,000,000invest_DerivativeNotionalAmount
Call options purchased to match the funding requirements			Call options are one, two and three year options
FGL purchases call options to fund the next index credit			One, two or three year call options to fund the next index credit
Derivative, Percentage of Production Volume Covered by Derivative Financial Instruments	38.00%hrg_DerivativePercentageOfProductionVolumeCoveredByDerivativeFinancialInstruments	69.00%hrg_DerivativePercentageOfProductionVolumeCoveredByDerivativeFinancialInstruments	55.00%hrg_DerivativePercentageOfProductionVolumeCoveredByDerivativeFinancialInstruments	0.00%hrg_DerivativePercentageOfProductionVolumeCoveredByDerivativeFinancialInstruments
Futures contracts [Member]
Derivative Financial Instruments [Line Items]
Cash collateral	7,800,000us-gaap_CollateralAlreadyPostedAggregateFairValue / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_FutureMember		7,800,000us-gaap_CollateralAlreadyPostedAggregateFairValue / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_FutureMember		10,800,000us-gaap_CollateralAlreadyPostedAggregateFairValue / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_FutureMember
Futures contracts	1,652us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_FutureMember		1,652us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_FutureMember		2,348us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_FutureMember
Nomura Fund Linked Note [Member]
Derivative Financial Instruments [Line Items]
Investment Owned, Balance, Principal Amount						35,000,000us-gaap_InvestmentOwnedBalancePrincipalAmount / us-gaap_DerivativeInstrumentRiskAxis = hrg_NomuraFundLinkedNoteMember
Embedded Derivative, Fair Value of Embedded Derivative Liability	12,200,000us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability / us-gaap_DerivativeInstrumentRiskAxis = hrg_NomuraFundLinkedNoteMember		12,200,000us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability / us-gaap_DerivativeInstrumentRiskAxis = hrg_NomuraFundLinkedNoteMember			11,300,000us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability / us-gaap_DerivativeInstrumentRiskAxis = hrg_NomuraFundLinkedNoteMember
Call options [Member]
Derivative Financial Instruments [Line Items]
Derivative Asset, Collateral, Obligation to Return Cash, Offset	177,100,000us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember		177,100,000us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember		188,000,000us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember
Derivative Asset, Fair Value, Gross Asset	268,300,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember		268,300,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember		7,602,600,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember
Derivative, Notional Amount					296,300,000invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember
Derivative Asset, Fair Value, Amount Offset Against Collateral	91,200,000us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember		91,200,000us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember		108,300,000us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember
Swap [Member] | Natural Gas Commodity Contract [Member]
Derivative Financial Instruments [Line Items]
Natural Gas, Volume	12,530,000hrg_DerivativeCommodityContractEnergyVolume / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_NaturalGasCommodityContractMember		12,530,000hrg_DerivativeCommodityContractEnergyVolume / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_NaturalGasCommodityContractMember		6,821,000hrg_DerivativeCommodityContractEnergyVolume / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_NaturalGasCommodityContractMember
Swap [Member] | Oil Commodity Contract [Member]
Derivative Financial Instruments [Line Items]
Derivative, Commodity Contract, Oil Volume	188,000hrg_DerivativeCommodityContractOilVolume / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_OilCommodityContractMember		188,000hrg_DerivativeCommodityContractOilVolume / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_OilCommodityContractMember		254,000hrg_DerivativeCommodityContractOilVolume / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_OilCommodityContractMember
Spectrum Brands [Member] | Standby Letters of Credit [Member]
Derivative Financial Instruments [Line Items]
Standby letters of credit	0us-gaap_LettersOfCreditOutstandingAmount / us-gaap_CreditFacilityAxis = us-gaap_StandbyLettersOfCreditMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		0us-gaap_LettersOfCreditOutstandingAmount / us-gaap_CreditFacilityAxis = us-gaap_StandbyLettersOfCreditMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		0us-gaap_LettersOfCreditOutstandingAmount / us-gaap_CreditFacilityAxis = us-gaap_StandbyLettersOfCreditMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Spectrum Brands [Member] | Zinc Commodity Swap Contract [Member]
Derivative Financial Instruments [Line Items]
Contract value	16,000,000hrg_DerivativeContractsMarketValue / us-gaap_DerivativeInstrumentRiskAxis = hrg_ZincCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		16,000,000hrg_DerivativeContractsMarketValue / us-gaap_DerivativeInstrumentRiskAxis = hrg_ZincCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Derivative net loss/gain			400,000hrg_AccumulatedOtherComprehensiveIncomeLossCumulativeGainLossFromDerivativeInstrumentBeforeTax / us-gaap_DerivativeInstrumentRiskAxis = hrg_ZincCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Derivative net loss/gain, net of tax benefit/expense			100,000hrg_AccumulatedOtherComprehensiveIncomeLossCumulativeGainLossFromDerivativeInstrumentTax / us-gaap_DerivativeInstrumentRiskAxis = hrg_ZincCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Estimated amount of derivative net losses/gains to be reclassified from AOCI into earnings over the next twelve months			500,000us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet / us-gaap_DerivativeInstrumentRiskAxis = hrg_ZincCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Weight of raw materials under derivative contract			0hrg_WeightOfRawMaterialUnderDerivativeContract / us-gaap_DerivativeInstrumentRiskAxis = hrg_ZincCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Spectrum Brands [Member] | Silver Commodity Swap Contract [Member]
Derivative Financial Instruments [Line Items]
Contract value	174,100,000hrg_DerivativeContractsMarketValue / us-gaap_DerivativeInstrumentRiskAxis = hrg_SilverCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		174,100,000hrg_DerivativeContractsMarketValue / us-gaap_DerivativeInstrumentRiskAxis = hrg_SilverCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		108,900,000hrg_DerivativeContractsMarketValue / us-gaap_DerivativeInstrumentRiskAxis = hrg_SilverCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Derivative, Nonmonetary Notional Amount	300,000invest_DerivativeNonmonetaryNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = hrg_SilverCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		300,000invest_DerivativeNonmonetaryNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = hrg_SilverCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		400,000invest_DerivativeNonmonetaryNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = hrg_SilverCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Weight of raw materials under derivative contract			15,000hrg_WeightOfRawMaterialUnderDerivativeContract / us-gaap_DerivativeInstrumentRiskAxis = hrg_SilverCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		0hrg_WeightOfRawMaterialUnderDerivativeContract / us-gaap_DerivativeInstrumentRiskAxis = hrg_SilverCommoditySwapContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Spectrum Brands [Member] | Bronze Commodity Contract [Member]
Derivative Financial Instruments [Line Items]
Contract value	9,200,000hrg_DerivativeContractsMarketValue / us-gaap_DerivativeInstrumentRiskAxis = hrg_BronzeCommodityContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		9,200,000hrg_DerivativeContractsMarketValue / us-gaap_DerivativeInstrumentRiskAxis = hrg_BronzeCommodityContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Weight of raw materials under derivative contract			1,900hrg_WeightOfRawMaterialUnderDerivativeContract / us-gaap_DerivativeInstrumentRiskAxis = hrg_BronzeCommodityContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Spectrum Brands [Member] | Interest Rate Contract [Member]
Derivative Financial Instruments [Line Items]
Derivative, Fixed Interest Rate	0.00%us-gaap_DerivativeFixedInterestRate / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		0.00%us-gaap_DerivativeFixedInterestRate / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Derivative net loss/gain			1,100,000hrg_AccumulatedOtherComprehensiveIncomeLossCumulativeGainLossFromDerivativeInstrumentBeforeTax / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		400,000hrg_AccumulatedOtherComprehensiveIncomeLossCumulativeGainLossFromDerivativeInstrumentBeforeTax / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Estimated amount of derivative net losses/gains to be reclassified from AOCI into earnings over the next twelve months			800,000us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		800,000us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Derivative, Notional Amount	300,000,000invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		300,000,000invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Spectrum Brands [Member] | Foreign Exchange Contract [Member]
Derivative Financial Instruments [Line Items]
Contract value	215,400,000hrg_DerivativeContractsMarketValue / us-gaap_DerivativeByNatureAxis = us-gaap_ForeignExchangeContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember		215,400,000hrg_DerivativeContractsMarketValue / us-gaap_DerivativeByNatureAxis = us-gaap_ForeignExchangeContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Derivative net loss/gain			8,900,000hrg_AccumulatedOtherComprehensiveIncomeLossCumulativeGainLossFromDerivativeInstrumentBeforeTax / us-gaap_DerivativeByNatureAxis = us-gaap_ForeignExchangeContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Derivative net loss/gain, net of tax benefit/expense			3,200,000hrg_AccumulatedOtherComprehensiveIncomeLossCumulativeGainLossFromDerivativeInstrumentTax / us-gaap_DerivativeByNatureAxis = us-gaap_ForeignExchangeContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Estimated amount of derivative net losses/gains to be reclassified from AOCI into earnings over the next twelve months			8,900,000us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet / us-gaap_DerivativeByNatureAxis = us-gaap_ForeignExchangeContractMember / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
Remainder of 2014 [Member] | Swap [Member] | Natural Gas Commodity Contract [Member]
Derivative Financial Instruments [Line Items]
Natural Gas, Volume	8,250,000hrg_DerivativeCommodityContractEnergyVolume / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_NaturalGasCommodityContractMember / hrg_DerivativePeriodAxis = hrg_RemainderOfYearOneMember		8,250,000hrg_DerivativeCommodityContractEnergyVolume / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_NaturalGasCommodityContractMember / hrg_DerivativePeriodAxis = hrg_RemainderOfYearOneMember
Remainder of 2014 [Member] | Swap [Member] | Oil Commodity Contract [Member]
Derivative Financial Instruments [Line Items]
Derivative, Average Forward Price	2.81us-gaap_DerivativeAverageForwardPrice / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_OilCommodityContractMember / hrg_DerivativePeriodAxis = hrg_RemainderOfYearOneMember		2.81us-gaap_DerivativeAverageForwardPrice / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_OilCommodityContractMember / hrg_DerivativePeriodAxis = hrg_RemainderOfYearOneMember
Derivative, Commodity Contract, Oil Volume	188,000hrg_DerivativeCommodityContractOilVolume / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_OilCommodityContractMember / hrg_DerivativePeriodAxis = hrg_RemainderOfYearOneMember		188,000hrg_DerivativeCommodityContractOilVolume / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_OilCommodityContractMember / hrg_DerivativePeriodAxis = hrg_RemainderOfYearOneMember
Year Two [Member] | Swap [Member] | Natural Gas Commodity Contract [Member]
Derivative Financial Instruments [Line Items]
Derivative, Average Forward Price	51.84us-gaap_DerivativeAverageForwardPrice / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_NaturalGasCommodityContractMember / hrg_DerivativePeriodAxis = hrg_YearTwoMember		51.84us-gaap_DerivativeAverageForwardPrice / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember / us-gaap_DerivativeInstrumentRiskAxis = hrg_NaturalGasCommodityContractMember / hrg_DerivativePeriodAxis = hrg_YearTwoMember
Not Designated as Hedging Instrument [Member]
Derivative Financial Instruments [Line Items]
Derivative Asset, Fair Value, Gross Asset	320,800,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember		320,800,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember		324,100,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember
Cash and Cash Equivalents [Member] | Call options [Member]
Derivative Financial Instruments [Line Items]
Derivative Asset, Collateral, Obligation to Return Cash, Offset	142,600,000us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset / us-gaap_BalanceSheetLocationAxis = us-gaap_CashAndCashEquivalentsMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember		142,600,000us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset / us-gaap_BalanceSheetLocationAxis = us-gaap_CashAndCashEquivalentsMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember		135,500,000us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset / us-gaap_BalanceSheetLocationAxis = us-gaap_CashAndCashEquivalentsMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember
Derivatives For Trading And Investment [Member] | Not Designated as Hedging Instrument [Member] | Commodity contracts [Member]
Derivative Financial Instruments [Line Items]
Derivative Asset, Fair Value, Gross Asset	19,300,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember		19,300,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember
Derivatives For Trading And Investment [Member] | Not Designated as Hedging Instrument [Member] | Call options [Member]
Derivative Financial Instruments [Line Items]
Derivative Asset, Fair Value, Gross Asset	268,300,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember		268,300,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember		296,300,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember
Bank of America [Member]
Derivative Financial Instruments [Line Items]
Derivative, Notional Amount	2,206,300,000invest_DerivativeNotionalAmount / us-gaap_CounterpartyNameAxis = hrg_BankOfAmericaMember		2,206,300,000invest_DerivativeNotionalAmount / us-gaap_CounterpartyNameAxis = hrg_BankOfAmericaMember
Bank of America [Member] | Derivatives For Trading And Investment [Member] | Not Designated as Hedging Instrument [Member] | Call options [Member]
Derivative Financial Instruments [Line Items]
Derivative Asset, Collateral, Obligation to Return Cash, Offset	34,500,000us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_CounterpartyNameAxis = hrg_BankOfAmericaMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember		34,500,000us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_CounterpartyNameAxis = hrg_BankOfAmericaMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember		52,500,000us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_CounterpartyNameAxis = hrg_BankOfAmericaMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember
Derivative Asset, Fair Value, Gross Asset	70,000,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_CounterpartyNameAxis = hrg_BankOfAmericaMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember		70,000,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_CounterpartyNameAxis = hrg_BankOfAmericaMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember		2,239,900,000us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_CounterpartyNameAxis = hrg_BankOfAmericaMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember
Derivative, Notional Amount					92,700,000invest_DerivativeNotionalAmount / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_CounterpartyNameAxis = hrg_BankOfAmericaMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember
Derivative Asset, Fair Value, Amount Offset Against Collateral	$ 35,500,000us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_CounterpartyNameAxis = hrg_BankOfAmericaMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember		$ 35,500,000us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_CounterpartyNameAxis = hrg_BankOfAmericaMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember		$ 40,200,000us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral / us-gaap_BalanceSheetLocationAxis = hrg_DerivativesForTradingAndInvestmentMember / us-gaap_CounterpartyNameAxis = hrg_BankOfAmericaMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CallOptionMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember

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- Definition

The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.

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- Definition

Accumulated other comprehensive income loss cumulative gain loss from derivative instrument before tax.

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- Definition

Accumulated other comprehensive income loss cumulative gain loss from derivative instrument tax.

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- Definition

Call options purchased to fund the next index credit.

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- Definition

Call options purchased to match the funding requirements.

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- Definition

Derivative, Commodity Contract, Natural Gas Volume

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Derivative, Commodity Contract, Oil Volume

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Derivative Contracts Market Value

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Weight of raw material under derivative contract.

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Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract.

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Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

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Amount of obligation to return cash collateral under master netting arrangements offset against derivative assets.

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The average forward price on the group of price risk forward or futures contracts, such as gas futures contracts.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fixed interest rate related to the interest rate derivative.

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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The number of derivative instruments of a particular group held by the entity.

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For investments which are quantified by principal amount, the principle balance held at close of period.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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