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Acquisitions Acquisition - European IAMS and Eukanuba (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 0 Months Ended | 6 Months Ended | 0 Months Ended | 3 Months Ended |
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Mar. 31, 2015 | Jan. 16, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2014 | Sep. 30, 2014
Business Acquisition [Line Items] |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate |  |  |  |  |
Goodwill | $ 1,543.0 us-gaap_Goodwill |  | 1,543.0 us-gaap_Goodwill |  |  | $ 1,524.8 us-gaap_Goodwill
Salix Animal Health LLC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents |  | 0.5 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables |  | 9.9 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember |  |  |  |
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] |  |  | The preliminary fair values recorded for the assets acquired and liabilities assumed for Salix were as follows:
|  | Preliminary Valuation
|  | January 16, 2014
Cash |  | $ | 0.5 |
Accounts receivable |  | 9.9 |
Inventories |  | 17.0 |
Prepaid expense |  | 2.4 |
Property, plant and equipment, net |  | 1.2 |
Intangible assets |  | 58.5 |
Total assets acquired |  | 89.5 |
Total liabilities assumed |  | 10.3 |
Total identifiable net assets less goodwill |  | 79.2 |
Goodwill |  | 68.8 |
Total identifiable net assets |  | $ | 148.0 |
Technology Assets Acquired, Useful Life |  | 17 years |  |  |  |
Acquired Technology Assets |  | 2.1 hrg_AcquiredTechnologyAssets / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory |  | 17.0 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets |  | 2.4 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  | 1.2 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  | 58.5 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets |  | 89.5 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  | 10.3 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Assets Less Goodwill |  | 79.2 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember |  |  |  |
Goodwill |  | 68.8 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net |  | 148.0 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember |  |  |  |
European IAMS and Eukanuba [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] |  |  | The preliminary fair values recorded for the assets acquired and liabilities assumed for European IAMS and Eukanuba were as follows:
|  | Preliminary Valuation
|  | December 31, 2014
Inventories |  | $ | 17.2 |
Prepaid expense |  | 1.3 |
Other current assets |  | 2.6 |
Property, plant and equipment, net |  | 58.3 |
Intangible assets |  | 40.5 |
Total assets acquired |  | 119.9 |
Total liabilities assumed |  | 5.6 |
Total identifiable net assets less goodwill |  | 114.3 |
Goodwill |  | 1.7 |
Total identifiable net assets |  | $ | 116.0 |
Technology Assets Acquired, Useful Life |  |  |  | 8 years |  |
Acquired Technology Assets |  |  |  | 3.6 hrg_AcquiredTechnologyAssets / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember | 3.6 hrg_AcquiredTechnologyAssets / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory |  |  |  | 17.2 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember | 17.2 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets |  |  |  | 1.3 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember | 1.3 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets, Current |  |  |  | 2.6 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember | 2.6 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  |  |  | 58.3 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember | 58.3 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  | 40.5 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember | 40.5 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets |  |  |  | 119.9 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember | 119.9 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  |  |  | 5.6 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember | 5.6 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Assets Less Goodwill |  |  |  | 114.3 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember | 114.3 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember |
Goodwill |  |  |  | 1.7 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember | 1.7 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember |
Trade Names [Member] | Salix Animal Health LLC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  | 20.0 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember |  |  |  |
Acquired Finite-lived Intangible Asset, Residual Value |  | 1.0 us-gaap_AcquiredFiniteLivedIntangibleAssetResidualValue / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember |  |  |  |
Trade Names [Member] | European IAMS and Eukanuba [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  | 26.7 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember | 26.7 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember |
Minimum [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 1 year |  |  |
Maximum [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 20 years |  |  |
Customer Relationships [Member] | Salix Animal Health LLC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  | 13 years |  |  |  |
Retention Rate |  | 92.50%hrg_RetentionRate / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  | 38.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |
Acquired Finite-lived Intangible Asset, Residual Value |  | 34.0 us-gaap_AcquiredFiniteLivedIntangibleAssetResidualValue / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |
Customer Relationships [Member] | European IAMS and Eukanuba [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  |  |  |  | 25.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
Acquired Finite-lived Intangible Asset, Residual Value |  |  |  | $ 10.2 us-gaap_AcquiredFiniteLivedIntangibleAssetResidualValue / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember | $ 10.2 us-gaap_AcquiredFiniteLivedIntangibleAssetResidualValue / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
Customer Relationships [Member] | Minimum [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 15 years |  |  |
Customer Relationships [Member] | Minimum [Member] | Salix Animal Health LLC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Fair Value Inputs, Long-term Revenue Growth Rate |  | 0.00%us-gaap_FairValueInputsLongTermRevenueGrowthRate / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |
Business Acquisition Contingent Consideration Key Assumptions Discount Rate |  | 12.00%hrg_BusinessAcquisitionContingentConsiderationKeyAssumptionsDiscountRate / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |
Customer Relationships [Member] | Minimum [Member] | European IAMS and Eukanuba [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  |  |  | 2 years |
Fair Value Inputs, Long-term Revenue Growth Rate |  |  |  | 0.50%us-gaap_FairValueInputsLongTermRevenueGrowthRate / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Retention Rate |  |  |  | 90.00%hrg_RetentionRate / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember / us-gaap_RangeAxis = us-gaap_MinimumMember | 90.00%hrg_RetentionRate / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
Business Acquisition Contingent Consideration Key Assumptions Discount Rate |  |  | 15.00%hrg_BusinessAcquisitionContingentConsiderationKeyAssumptionsDiscountRate / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |
Customer Relationships [Member] | Maximum [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 20 years |  |  |
Customer Relationships [Member] | Maximum [Member] | Salix Animal Health LLC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Fair Value Inputs, Long-term Revenue Growth Rate |  | 12.10%us-gaap_FairValueInputsLongTermRevenueGrowthRate / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |
Business Acquisition Contingent Consideration Key Assumptions Discount Rate |  | 13.00%hrg_BusinessAcquisitionContingentConsiderationKeyAssumptionsDiscountRate / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |
Customer Relationships [Member] | Maximum [Member] | European IAMS and Eukanuba [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  |  |  | 15 years |
Fair Value Inputs, Long-term Revenue Growth Rate |  |  |  | 13.20%us-gaap_FairValueInputsLongTermRevenueGrowthRate / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Retention Rate |  |  |  | 100.00%hrg_RetentionRate / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 100.00%hrg_RetentionRate / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
Business Acquisition Contingent Consideration Key Assumptions Discount Rate |  |  | 16.00%hrg_BusinessAcquisitionContingentConsiderationKeyAssumptionsDiscountRate / us-gaap_BusinessAcquisitionAxis = hrg_EuropeanIAMSandEukanubaMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |
Cost Approach Valuation Technique [Member] | Salix Animal Health LLC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment, Measurement Basis, Percentage of Total |  | 98.00%hrg_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantandEquipmentMeasurementBasisPercentageofTotal / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember / hrg_FairValueByValuationTechniqueAxis = us-gaap_CostApproachValuationTechniqueMember |  |  |  |
Market Approach Valuation Technique [Member] | Salix Animal Health LLC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment, Measurement Basis, Percentage of Total |  | 2.00%hrg_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantandEquipmentMeasurementBasisPercentageofTotal / us-gaap_BusinessAcquisitionAxis = hrg_SalixAnimalHealthLLCMember / hrg_FairValueByValuationTechniqueAxis = us-gaap_MarketApproachValuationTechniqueMember |  |  |  |

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- Definition The aggregate expected value at the end of their useful life of a major finite-lived intangible asset class acquired during the period either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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