XML 33 R104.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Contingencies (Details) $ in Millions |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2018 Party | Nov. 30, 2019 USD ($) | Mar. 31, 2016 Party mi | Dec. 28, 2019 USD ($) contaminant | Dec. 29, 2018 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |
Loss Contingency, Estimate of Possible Loss, Area of Land | mi |  |  | 8.3 |  |
Loss Contingency, Estimate of Possible Loss |  |  |  | $ 1,380.0 |
Loss Contingency, Number of Parties | Party | 100 |  | 100 |  |
Number of Contaminants | contaminant |  |  |  | 8 |
Gain (Loss) Related to Litigation Settlement |  | $ 0.6 |  |  |
Insurance Environmental and Litigation Matters [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Reserves for insurance, environmental and litigation contingencies |  |  |  | $ 70.5 | $ 66.6
Insurance Settlements Receivable, Noncurrent |  |  |  | 26.2 | $ 26.1
Settled Litigation [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss Contingency, Number of Parties | Party | 20 |  |  |  |
Pending Litigation [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss Contingency, Estimate of Possible Loss |  |  |  | $ 165.0 |
Loss Contingency, Number of Parties | Party | 40 |  |  |  |
Plant, One [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Gain (Loss) Related to Litigation Settlement |  | 0.3 |  |  |
Plant, Two [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Gain (Loss) Related to Litigation Settlement |  | $ 0.3 |  |  |

X
- Definition Loss Contingency, Estimate of Possible Loss, Area of Land + References No definition available. + Details
Name: | dar_LossContingencyEstimateofPossibleLossAreaofLand
Namespace Prefix: | dar_
Data Type: | num:lengthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Loss Contingency, Number of Parties + References No definition available. + Details
Name: | dar_LossContingencyNumberofParties
Namespace Prefix: | dar_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of Contaminants + References No definition available. + Details
Name: | dar_NumberofContaminants
Namespace Prefix: | dar_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
Name: | us-gaap_GainLossRelatedToLitigationSettlement
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Carrying amount due after one year of the balance sheet date (or one operating cycle, if longer) of amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_InsuranceSettlementsReceivableNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14557-108349 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118943654&loc=d3e12021-110248 + Details
Name: | us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=dar_InsuranceEnvironmentalAndLitigationMattersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationStatusAxis=us-gaap_SettledLitigationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationStatusAxis=us-gaap_PendingLitigationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_LitigationCaseAxis=dar_PlantOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_LitigationCaseAxis=dar_PlantTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |