XML 66 R34.htm IDEA: XBRL DOCUMENT v2.4.1.9
General (Details)
Apr. 04, 2015
facilities
Jan. 07, 2014
continent
Business Acquisition [Line Items]    
Number of Processing and Transfer Facilities (over 200) 200dar_NumberOfProcessingAndTransferFacilities  
Vion Ingredients [Member]    
Business Acquisition [Line Items]    
Number of continents in which entity operates   5dar_ExpectedBusinessCombinationNumberofContinentsinwhichEntityOperates
/ us-gaap_BusinessAcquisitionAxis
= dar_VionIngredientsMember
Best Hides GmbH [Member] | Vion Ingredients [Member]    
Business Acquisition [Line Items]    
Business acquisition, percentage of interests acquired   60.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= dar_VionIngredientsMember
/ dei_LegalEntityAxis
= dar_BestHidesGmbHMember