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Investment in Quest Resource Management Group, LLC - Summary of Financial Condition and Operating Results of Quest Recycling Services (Parenthetical) (Detail) (Quest Resource Management Group, LLC [Member])
Dec. 31, 2014
50% ownership interest [Member]
  
Ownership Interests [Line Items]  
Ownership interest percentage 50.00%qrhc_OwnershipInterestPercentage
/ us-gaap_BusinessAcquisitionAxis
= qrhc_VariableInterestEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= qrhc_FiftyPercentageOwnershipInterestMember
100% ownership interest [Member]
  
Ownership Interests [Line Items]  
Ownership interest percentage 100.00%qrhc_OwnershipInterestPercentage
/ us-gaap_BusinessAcquisitionAxis
= qrhc_VariableInterestEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= qrhc_HundredPercentageOwnershipInterestMember