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Basis of Presentation, Significant Accounting Polices and Practicies and Recent Accounting Pronouncements (Details)	6 Months Ended
	Mar. 31, 2015
Spectrum Brands [Member]
Reserve Quantities [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	41.50%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / dei_LegalEntityAxis = hrg_SpectrumBrandsMember
FGL [Member]
Reserve Quantities [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	19.30%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / dei_LegalEntityAxis = hrg_FglMember
Natural Gas [Member]
Reserve Quantities [Line Items]
Average Sales Prices	3.88us-gaap_AverageSalesPrices / us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis = us-gaap_NaturalGasReservesMember
Oil [Member]
Reserve Quantities [Line Items]
Average Sales Prices	82.72us-gaap_AverageSalesPrices / us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis = us-gaap_OilReservesMember
Natural Gas Liquids [Member]
Reserve Quantities [Line Items]
Average Sales Prices	34.31us-gaap_AverageSalesPrices / us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis = us-gaap_NaturalGasLiquidsReservesMember

X

- Definition

The revenues derived from sales of oil or gas in each geographic area during the reporting period divided by the number of barrels of oil produced or thousands of cubic feet of gas produced.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-K (SK)

-Number 229

-Section 1204

-Paragraph (b)

-Subparagraph (1)

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- Definition

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+ References

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