Related Party, Sales Eliminated

No definition available.

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Namespace Prefix:	dar_
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- Definition

Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Fair value of the amount outstanding under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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- Details

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- Details

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- Details

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Related Party Transactions (Details) - USD ($)		3 Months Ended		6 Months Ended
Related Party Transactions (Details) - USD ($)	Feb. 23, 2015	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017	Dec. 30, 2017
Related Party Transaction [Line Items]
Payments on long-term debt				$ (650,976,000)	$ (67,974,000)
Diamond Green Diesel Holdings LLC Joint Venture [Member]
Related Party Transaction [Line Items]
Revenue from Related Parties		$ 33,800,000	$ 42,500,000	66,900,000	$ 78,100,000
Accounts Receivable, Related Parties, Current		1,500,000		1,500,000		$ 5,600,000
Related Party Sales Eliminated				5,600,000
Deferred Revenue, Additions				1,200,000
Revolving Loan Agreement [Member] \| Revolving Credit Facility [Member]
Related Party Transaction [Line Items]
Revolving Loan Agreement, Maximum Borrowing Capacity	$ 10,000,000.0
Revolving Loan Agreement, Fair Value of Amount Outstanding		$ 0		$ 0
Revolving Loan Agreement [Member] \| Lender One [Member] \| Revolving Credit Facility [Member]
Related Party Transaction [Line Items]
Revolving Loan Agreement, Maximum Borrowing Capacity	$ 5,000,000.0
LIBO Rate [Member] \| Revolving Loan Agreement [Member] \| Revolving Credit Facility [Member]
Related Party Transaction [Line Items]
Basis spread on variable rate	2.50%