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Debt - Summary of Debt (Detail) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Sep. 30, 2014
Debt Instrument [Line Items]    
Long-term Debt $ 5,658.3us-gaap_LongTermDebt $ 5,194.5us-gaap_LongTermDebt
Original issuance (discounts) premiums on debt, net (34.6)us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet (36.7)us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet
Total Debt 5,623.7hrg_LongTermDebtCurrentAndNonCurrent 5,157.8hrg_LongTermDebtCurrentAndNonCurrent
Less current maturities 423.3us-gaap_LongTermDebtCurrent 96.7us-gaap_LongTermDebtCurrent
Non-current portion of debt 5,200.4us-gaap_LongTermDebtNoncurrent 5,061.1us-gaap_LongTermDebtNoncurrent
HGI [Member] | 7.875% Senior Secured Notes, due July 15, 2019 [Member]    
Debt Instrument [Line Items]    
Long-term Debt 604.4us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SevenPointEightSevenFivePercentSeniorNotesMember
604.4us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SevenPointEightSevenFivePercentSeniorNotesMember
Long-term debt, interest rate 7.90%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SevenPointEightSevenFivePercentSeniorNotesMember
7.90%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SevenPointEightSevenFivePercentSeniorNotesMember
HGI [Member] | Seven Point Seven Five Percent Senior Unsecured Notes [Member]    
Debt Instrument [Line Items]    
Long-term Debt 750.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SevenPointSevenFivePercentSeniorUnsecuredNotesMember
750.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SevenPointSevenFivePercentSeniorUnsecuredNotesMember
Long-term debt, interest rate 7.80%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SevenPointSevenFivePercentSeniorUnsecuredNotesMember
7.80%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SevenPointSevenFivePercentSeniorUnsecuredNotesMember
Spectrum Brands [Member] | 6.75% Senior Notes, due March 15, 2020 [Member]    
Debt Instrument [Line Items]    
Long-term Debt 300.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointSevenFivePercentageSeniorNotesMember
300.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointSevenFivePercentageSeniorNotesMember
Long-term debt, interest rate 6.75%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointSevenFivePercentageSeniorNotesMember
6.80%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointSevenFivePercentageSeniorNotesMember
Spectrum Brands [Member] | Six Point One Two Five Percentage Senior Notes [Member]    
Debt Instrument [Line Items]    
Long-term Debt 250.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointOneTwoFivePercentageSeniorNotesMember
0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointOneTwoFivePercentageSeniorNotesMember
Long-term debt, interest rate 6.125%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointOneTwoFivePercentageSeniorNotesMember
0.00%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointOneTwoFivePercentageSeniorNotesMember
Spectrum Brands [Member] | Six Point Three Seven Five Senior Notes [Member]    
Debt Instrument [Line Items]    
Long-term Debt 520.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointThreeSevenFiveSeniorNotesMember
520.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointThreeSevenFiveSeniorNotesMember
Long-term debt, interest rate 6.375%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointThreeSevenFiveSeniorNotesMember
6.40%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointThreeSevenFiveSeniorNotesMember
Spectrum Brands [Member] | 6.625% Notes [Member]    
Debt Instrument [Line Items]    
Long-term Debt 570.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointSixTwoFivePercentNotesMember
570.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointSixTwoFivePercentNotesMember
Long-term debt, interest rate 6.625%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointSixTwoFivePercentNotesMember
6.60%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointSixTwoFivePercentNotesMember
Spectrum Brands [Member] | ABL Facility, expiring May 24, 2017 [Member]    
Debt Instrument [Line Items]    
Long-term Debt 42.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_AblRevolvingCreditFacilityMember
0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_AblRevolvingCreditFacilityMember
Long-term debt, interest rate 4.00%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_AblRevolvingCreditFacilityMember
2.50%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_AblRevolvingCreditFacilityMember
Spectrum Brands [Member] | Other notes and obligations [Member]    
Debt Instrument [Line Items]    
Long-term Debt 31.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_OtherNotesAndObligationsMember
36.6us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_OtherNotesAndObligationsMember
Long-term debt, interest rate 12.60%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_OtherNotesAndObligationsMember
8.80%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_OtherNotesAndObligationsMember
Spectrum Brands [Member] | Capitalized lease obligations [Member]    
Debt Instrument [Line Items]    
Long-term Debt 88.6us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_CapitalLeaseObligationsMember
94.7us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_CapitalLeaseObligationsMember
Long-term debt, interest rate 6.10%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_CapitalLeaseObligationsMember
6.10%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_CapitalLeaseObligationsMember
Spectrum Brands [Member] | Term Loan Due December 17, 2019 [Member]    
Debt Instrument [Line Items]    
Long-term Debt 30.5us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_TermLoanDueDecember172019Member
[1]  
Spectrum Brands [Member] | Term Loan Due September 4, 2019 [Member]    
Debt Instrument [Line Items]    
Long-term Debt   509.9us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_TermLoanDueSeptember42019Member
[1]
Long-term debt, interest rate 3.60%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_TermLoanDueSeptember42019Member
[1] 3.60%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_TermLoanDueSeptember42019Member
[1]
Spectrum Brands [Member] | Term Loan Due September 4, 2017 [Member]    
Debt Instrument [Line Items]    
Long-term Debt 635.2us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_TermLoanDueSeptember42017Member
[1] 648.4us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_TermLoanDueSeptember42017Member
[1]
Long-term debt, interest rate 3.10%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_TermLoanDueSeptember42017Member
[1] 3.00%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_TermLoanDueSeptember42017Member
[1]
FGLH [Member] | 6.375% Senior Notes, Due April 1, 2021 [Member]    
Debt Instrument [Line Items]    
Long-term Debt 300.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_FidelityAndGuarantyLifeHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointThreeSevenFivePercentSeniorNotesDueApril12021Member
300.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_FidelityAndGuarantyLifeHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointThreeSevenFivePercentSeniorNotesDueApril12021Member
Long-term debt, interest rate 6.40%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_FidelityAndGuarantyLifeHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointThreeSevenFivePercentSeniorNotesDueApril12021Member
6.40%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_FidelityAndGuarantyLifeHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SixPointThreeSevenFivePercentSeniorNotesDueApril12021Member
EXCO/HGI JV [Member] | EXO/HGI Partnership Credit Agreement, due February 14, 2018 [Member]    
Debt Instrument [Line Items]    
Long-term debt, interest rate 2.70%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_ExcohgiPartnershipMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_ExohgiPartnershipCreditAgreementDueFebruary142018Member
2.70%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_ExcohgiPartnershipMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_ExohgiPartnershipCreditAgreementDueFebruary142018Member
Line of Credit Facility, Amount Outstanding   243.2us-gaap_LineOfCredit
/ dei_LegalEntityAxis
= hrg_ExcohgiPartnershipMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_ExohgiPartnershipCreditAgreementDueFebruary142018Member
Salus Capital Partners L L C [Member] | Unaffiliated Long-Term Debt of Consolidated Variable-Interest-Entity [Member]    
Debt Instrument [Line Items]    
Long-term Debt 193.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SalusCapitalPartnersLLCMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_UnaffiliatedLongTermDebtofConsolidatedVariableInterestEntityMember
193.0us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SalusCapitalPartnersLLCMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_UnaffiliatedLongTermDebtofConsolidatedVariableInterestEntityMember
Long-term debt, interest rate 6.60%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SalusCapitalPartnersLLCMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_UnaffiliatedLongTermDebtofConsolidatedVariableInterestEntityMember
6.70%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SalusCapitalPartnersLLCMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_UnaffiliatedLongTermDebtofConsolidatedVariableInterestEntityMember
Salus Capital Partners L L C [Member] | Secured Borrowings Related to non-qualifying participating loan interests [Member]    
Debt Instrument [Line Items]    
Long-term Debt 102.2us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SalusCapitalPartnersLLCMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SecuredBorrowingsRelatedtononqualifyingparticipatingloaninterestsMember
106.8us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= hrg_SalusCapitalPartnersLLCMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SecuredBorrowingsRelatedtononqualifyingparticipatingloaninterestsMember
Long-term debt, interest rate 10.90%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SalusCapitalPartnersLLCMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SecuredBorrowingsRelatedtononqualifyingparticipatingloaninterestsMember
10.80%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ dei_LegalEntityAxis
= hrg_SalusCapitalPartnersLLCMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_SecuredBorrowingsRelatedtononqualifyingparticipatingloaninterestsMember
Revolving Credit Facility [Member] | FGLH [Member]    
Debt Instrument [Line Items]    
Long-term debt, interest rate 5.25%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ dei_LegalEntityAxis
= hrg_FidelityAndGuarantyLifeHoldingsMember
5.30%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ dei_LegalEntityAxis
= hrg_FidelityAndGuarantyLifeHoldingsMember
Line of Credit Facility, Amount Outstanding 0us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ dei_LegalEntityAxis
= hrg_FidelityAndGuarantyLifeHoldingsMember
0us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ dei_LegalEntityAxis
= hrg_FidelityAndGuarantyLifeHoldingsMember
Compass Credit Agreement [Member] | Compass Production Partners [Member] | EXO/HGI Partnership Credit Agreement, due February 14, 2018 [Member]    
Debt Instrument [Line Items]    
Line of Credit Facility, Fair Value of Amount Outstanding 327.0us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding
/ us-gaap_CreditFacilityAxis
= hrg_CompassCreditAgreementMember
/ dei_LegalEntityAxis
= hrg_CompassProductionPartnersMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_ExohgiPartnershipCreditAgreementDueFebruary142018Member
 
Euro Member Countries, Euro | Spectrum Brands [Member] | Euro Term Loan, Due September 4, 2019 [Member]    
Debt Instrument [Line Items]    
Long-term Debt 242.5us-gaap_LongTermDebt
/ us-gaap_CurrencyAxis
= currency_EUR
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_EuroTermLoanDueSeptember42019Member
[1] 283.3us-gaap_LongTermDebt
/ us-gaap_CurrencyAxis
= currency_EUR
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_EuroTermLoanDueSeptember42019Member
[1]
Long-term debt, interest rate 3.80%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ us-gaap_CurrencyAxis
= currency_EUR
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_EuroTermLoanDueSeptember42019Member
[1] 3.80%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ us-gaap_CurrencyAxis
= currency_EUR
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_EuroTermLoanDueSeptember42019Member
[1]
Euro Member Countries, Euro | Spectrum Brands [Member] | Euro Term Loan, Due December 19, 2021 [Member] [Member]    
Debt Instrument [Line Items]    
Debt Instrument, Unamortized Discount 0.4us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_CurrencyAxis
= currency_EUR
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_EuroTermLoanDueDecember192021MemberMember
 
Long-term Debt 150.0us-gaap_LongTermDebt
/ us-gaap_CurrencyAxis
= currency_EUR
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_EuroTermLoanDueDecember192021MemberMember
0us-gaap_LongTermDebt
/ us-gaap_CurrencyAxis
= currency_EUR
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_EuroTermLoanDueDecember192021MemberMember
[1]
Long-term debt, interest rate 3.80%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ us-gaap_CurrencyAxis
= currency_EUR
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_EuroTermLoanDueDecember192021MemberMember
[1] 0.00%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ us-gaap_CurrencyAxis
= currency_EUR
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_EuroTermLoanDueDecember192021MemberMember
[1]
United States of America, Dollars | Spectrum Brands [Member] | Euro Term Loan, Due December 19, 2021 [Member] [Member]    
Debt Instrument [Line Items]    
Long-term Debt 163.3us-gaap_LongTermDebt
/ us-gaap_CurrencyAxis
= currency_USD
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_EuroTermLoanDueDecember192021MemberMember
[1]  
Canada, Dollars | Spectrum Brands [Member] | Term Loan Due December 17, 2019 [Member]    
Debt Instrument [Line Items]    
Long-term Debt   34.2us-gaap_LongTermDebt
/ us-gaap_CurrencyAxis
= currency_CAD
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_TermLoanDueDecember172019Member
[1]
Long-term debt, interest rate 5.10%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ us-gaap_CurrencyAxis
= currency_CAD
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_TermLoanDueDecember172019Member
[1] 5.10%us-gaap_LongTermDebtPercentageBearingFixedInterestRate
/ us-gaap_CurrencyAxis
= currency_CAD
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_TermLoanDueDecember172019Member
[1]
Canada, Dollars | Spectrum Brands [Member] | Term Loan Due September 4, 2019 [Member]    
Debt Instrument [Line Items]    
Long-term Debt $ 508.6us-gaap_LongTermDebt
/ us-gaap_CurrencyAxis
= currency_CAD
/ dei_LegalEntityAxis
= hrg_SpectrumBrandsMember
/ us-gaap_LongtermDebtTypeAxis
= hrg_TermLoanDueSeptember42019Member
[1]  
[1] *Together, defined as the "Term Loan"