XML 85 R74.htm IDEA: XBRL DOCUMENT
v3.19.1

Derivatives Derivative Effect of Derivatives Not Designated As Hedges (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 30, 2019 | Mar. 31, 2018
Derivative [Line Items] |  |
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges | $ 1,766 | $ 2,346
Foreign Exchange Contract [Member] | Foreign Currency Gain (Loss) [Member] |  |
Derivative [Line Items] |  |
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges | 1,871 | 1,654
Foreign Exchange Contract [Member] | Selling, General and Administrative Expenses [Member] |  |
Derivative [Line Items] |  |
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges | 873 | 489
Foreign Exchange Contract [Member] | Sales [Member] |  |
Derivative [Line Items] |  |
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges | 296 | 0
Foreign Exchange Contract [Member] | Cost of Sales [Member] |  |
Derivative [Line Items] |  |
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges | (245) | 0
Corn options and futures [Member] | Sales [Member] |  |
Derivative [Line Items] |  |
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges | 350 | (309)
Corn options and futures [Member] | Cost of Sales [Member] |  |
Derivative [Line Items] |  |
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges | (873) | 512
Heating Oil Swaps And Options [Member] | Cost of Sales [Member] |  |
Derivative [Line Items] |  |
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges | $ (506) | $ 0

X
- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
Name: | us-gaap_DerivativeGainLossOnDerivativeNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_ForeignCurrencyGainLossMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_SalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=dar_CornOptionsAndFuturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=dar_HeatingOilSwapsAndOptionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |