XML 50 R40.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Acquisition of Noncontrolling Interest (Details) $ in Millions | 3 Months Ended
--- | ---
Sep. 30, 2017 USD ($)
Noncontrolling Interest [Abstract] |
Acquisition of noncontrolling interest | $ 19.1

X
- Definition Acquisition Of Noncontrolling Interest + References No definition available. + Details
Name: | dar_AcquisitionOfNoncontrollingInterest
Namespace Prefix: | dar_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_NoncontrollingInterestAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration