XML 20 R57.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Guarantor Financial Information (Narrative) (Details) | Apr. 04, 2015
--- | ---
Guarantor Financial Information [Abstract] |
Company's percentage of directly and indirectly owned subsidiaries | 100.00%us-gaap_MinorityInterestOwnershipPercentageByParent

X
- Details
Name: | dar_GuarantorFinancialInformationAbstract
Namespace Prefix: | dar_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant