XML 14 R33.htm IDEA: XBRL DOCUMENT v2.4.0.6

General (Details)	Sep. 29, 2012 facilities
General [Abstract]
Number of Processing and Transfer Facilities	120

X

- Details

Name:	dar_GeneralAbstract
Namespace Prefix:	dar_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of Processing and Transfer Facilities

+ References

No definition available.

+ Details

Name:	dar_NumberOfProcessingAndTransferFacilities
Namespace Prefix:	dar_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant