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Investments Investments - Schedule of Commercial Mortgage Loans (Details) (USD $) In Millions, unless otherwise specified | Mar. 31, 2015 | Sep. 30, 2014
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Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | $ 304.4 us-gaap_LoansReceivableCommercialMortgage |  | $ 136.2 us-gaap_LoansReceivableCommercialMortgage |
Commercial Mortgage Receivable, Percentage of Total | 100.00%hrg_CommercialMortgageReceivablePercentageofTotal |  | 100.00%hrg_CommercialMortgageReceivablePercentageofTotal |
LTV Less Than 50 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 75.0 us-gaap_LoansReceivableCommercialMortgage / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember |  | 45.4 us-gaap_LoansReceivableCommercialMortgage / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember |
Commercial Mortgage Receivable, Percentage of Total | 24.60%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember |  | 33.30%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember |
LTV 50 to 60 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 83.7 us-gaap_LoansReceivableCommercialMortgage / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember |  | 19.9 us-gaap_LoansReceivableCommercialMortgage / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember |
Commercial Mortgage Receivable, Percentage of Total | 27.50%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember |  | 14.60%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember |
LTV 60 to 75 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 145.7 us-gaap_LoansReceivableCommercialMortgage / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember |  | 70.9 us-gaap_LoansReceivableCommercialMortgage / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember |
Commercial Mortgage Receivable, Percentage of Total | 47.90%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember |  | 52.10%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember |
Greater Than One Point Two Five [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 283.7 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOnePointTwoFiveMember |  | 135.4 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOnePointTwoFiveMember |
Greater Than One Point Two Five [Member] | LTV Less Than 50 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 74.2 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOnePointTwoFiveMember / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember |  | 44.6 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOnePointTwoFiveMember / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember |
Greater Than One Point Two Five [Member] | LTV 50 to 60 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 63.8 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOnePointTwoFiveMember / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember |  | 19.9 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOnePointTwoFiveMember / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember |
Greater Than One Point Two Five [Member] | LTV 60 to 75 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 145.7 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOnePointTwoFiveMember / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember |  | 70.9 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOnePointTwoFiveMember / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember |
Greater Than One But Less Than One Point Two Five [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 19.9 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOneButLessThanOnePointTwoFiveMember |  | 0 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOneButLessThanOnePointTwoFiveMember |
Greater Than One But Less Than One Point Two Five [Member] | LTV Less Than 50 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 0 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOneButLessThanOnePointTwoFiveMember / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember |  | 0 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOneButLessThanOnePointTwoFiveMember / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember |
Greater Than One But Less Than One Point Two Five [Member] | LTV 50 to 60 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 19.9 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOneButLessThanOnePointTwoFiveMember / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember |  | 0 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOneButLessThanOnePointTwoFiveMember / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember |
Greater Than One But Less Than One Point Two Five [Member] | LTV 60 to 75 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 0 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOneButLessThanOnePointTwoFiveMember / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember |  | 0 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_GreaterThanOneButLessThanOnePointTwoFiveMember / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember |
Ratio Not Available [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 0.8 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_RatioNotAvailableMember | [1] | 0.8 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_RatioNotAvailableMember | [1]
Ratio Not Available [Member] | LTV Less Than 50 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 0.8 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_RatioNotAvailableMember / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember | [1] | 0.8 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_RatioNotAvailableMember / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember | [1]
Ratio Not Available [Member] | LTV 50 to 60 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 0 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_RatioNotAvailableMember / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember | [1] | 0 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_RatioNotAvailableMember / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember | [1]
Ratio Not Available [Member] | LTV 60 to 75 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 0 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_RatioNotAvailableMember / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember | [1] | 0 us-gaap_LoansReceivableCommercialMortgage / hrg_DebtServiceCoverageAxis = hrg_RatioNotAvailableMember / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember | [1]
Estimate of Fair Value Measurement [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 304.4 us-gaap_LoansReceivableCommercialMortgage / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |  | 136.2 us-gaap_LoansReceivableCommercialMortgage / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
Commercial Mortgage Receivable, Percentage of Total | 100.00%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |  | 100.00%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
Estimate of Fair Value Measurement [Member] | LTV Less Than 50 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 75.0 us-gaap_LoansReceivableCommercialMortgage / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember |  | 45.4 us-gaap_LoansReceivableCommercialMortgage / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember |
Commercial Mortgage Receivable, Percentage of Total | 24.60%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember |  | 33.30%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember / us-gaap_LoanToValueAxis = hrg_LTVLessThan50PercentMember |
Estimate of Fair Value Measurement [Member] | LTV 50 to 60 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 83.7 us-gaap_LoansReceivableCommercialMortgage / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember |  | 19.9 us-gaap_LoansReceivableCommercialMortgage / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember |
Commercial Mortgage Receivable, Percentage of Total | 27.50%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember |  | 14.60%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember / us-gaap_LoanToValueAxis = hrg_LTV50to60PercentMember |
Estimate of Fair Value Measurement [Member] | LTV 60 to 75 Percent [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 145.7 us-gaap_LoansReceivableCommercialMortgage / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember |  | 70.9 us-gaap_LoansReceivableCommercialMortgage / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember |
Commercial Mortgage Receivable, Percentage of Total | 47.90%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember |  | 52.10%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember / us-gaap_LoanToValueAxis = hrg_LTV60to75PercentMember |
Industrial Property [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 19.9 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_IndustrialPropertyMember |  | 0 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_IndustrialPropertyMember |
Commercial Mortgage Receivable, Percentage of Total | 6.50%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_IndustrialPropertyMember |  | 0.00%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_IndustrialPropertyMember |
Warehouse [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 47.5 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_WarehouseMember |  | 48.0 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_WarehouseMember |
Commercial Mortgage Receivable, Percentage of Total | 15.60%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_WarehouseMember |  | 35.20%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_WarehouseMember |
Multifamily [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 29.8 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_MultifamilyMember |  | 37.8 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_MultifamilyMember |
Commercial Mortgage Receivable, Percentage of Total | 9.80%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_MultifamilyMember |  | 27.80%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_MultifamilyMember |
Apartment Building [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 7.6 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_ApartmentBuildingMember |  | 0 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_ApartmentBuildingMember |
Commercial Mortgage Receivable, Percentage of Total | 2.50%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_ApartmentBuildingMember |  | 0.00%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_ApartmentBuildingMember |
Office Building [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 75.7 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_OfficeBuildingMember |  | 44.6 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_OfficeBuildingMember |
Commercial Mortgage Receivable, Percentage of Total | 24.90%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_OfficeBuildingMember |  | 32.70%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_OfficeBuildingMember |
Retail Site [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 123.1 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_RetailSiteMember |  | 5.8 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_RetailSiteMember |
Commercial Mortgage Receivable, Percentage of Total | 40.40%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_RetailSiteMember |  | 4.30%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_RetailSiteMember |
Funeral Home [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 0.8 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = hrg_FuneralHomeMember |  | 0 us-gaap_LoansReceivableCommercialMortgage / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = hrg_FuneralHomeMember |
Commercial Mortgage Receivable, Percentage of Total | 0.30%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = hrg_FuneralHomeMember |  | 0.00%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = hrg_FuneralHomeMember |
East North Central US [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 83.8 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_EastNorthCentralUSMember |  | 27.8 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_EastNorthCentralUSMember |
Commercial Mortgage Receivable, Percentage of Total | 27.50%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_EastNorthCentralUSMember |  | 20.40%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_EastNorthCentralUSMember |
Middle Atlantic US [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 17.9 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_MiddleAtlanticUSMember |  | 10.9 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_MiddleAtlanticUSMember |
Commercial Mortgage Receivable, Percentage of Total | 5.90%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_MiddleAtlanticUSMember |  | 8.00%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_MiddleAtlanticUSMember |
Pacific US [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 65.7 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_PacificUSMember |  | 61.5 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_PacificUSMember |
Commercial Mortgage Receivable, Percentage of Total | 21.60%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_PacificUSMember |  | 45.10%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_PacificUSMember |
South Atlantic US [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 63.8 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_SouthAtlanticUSMember |  | 0 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_SouthAtlanticUSMember |
Commercial Mortgage Receivable, Percentage of Total | 21.00%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_SouthAtlanticUSMember |  | 0.00%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_SouthAtlanticUSMember |
West North Central US [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 5.7 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_WestNorthCentralUSMember |  | 5.8 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_WestNorthCentralUSMember |
Commercial Mortgage Receivable, Percentage of Total | 1.90%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_WestNorthCentralUSMember |  | 4.30%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_WestNorthCentralUSMember |
West South Central US [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 19.9 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_WestSouthCentralUSMember |  | 30.2 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_WestSouthCentralUSMember |
Commercial Mortgage Receivable, Percentage of Total | 6.50%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_WestSouthCentralUSMember |  | 22.20%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_WestSouthCentralUSMember |
Mountain [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | 42.1 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_MountainMember |  | 0 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_MountainMember |
Commercial Mortgage Receivable, Percentage of Total | 13.80%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_MountainMember |  | 0.00%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_MountainMember |
New England [Member] |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |
Loans Receivable, Gross, Commercial, Mortgage | $ 5.5 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_NewEnglandMember |  | $ 0 us-gaap_LoansReceivableCommercialMortgage / us-gaap_StatementGeographicalAxis = hrg_NewEnglandMember |
Commercial Mortgage Receivable, Percentage of Total | 1.80%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_NewEnglandMember |  | 0.00%hrg_CommercialMortgageReceivablePercentageofTotal / us-gaap_StatementGeographicalAxis = hrg_NewEnglandMember |
[1] | (a) N/A - Current financial information not available.

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- Definition Percentage of the total commercial loan portfolio. + References No definition available. + Details
Name: | hrg_CommercialMortgageReceivablePercentageofTotal
Namespace Prefix: | hrg_
Data Type: | num:percentItemType
Balance Type: | na
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