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v2.4.1.9

Guarantor Financial Information Condensed Consolidated Statements of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Jan. 03, 2015 | Dec. 28, 2013 | Dec. 29, 2012
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | $ 68,311 us-gaap_ProfitLoss |  | $ 108,967 us-gaap_ProfitLoss |  | $ 130,770 us-gaap_ProfitLoss |
Cash flows from operating activities: |  |  |  |  |  |
Earnings in investments in subsidiaries | 0 dar_EarningsInInvestmentsInSubsidiaries |  | 0 dar_EarningsInInvestmentsInSubsidiaries |  | 0 dar_EarningsInInvestmentsInSubsidiaries |
Other operating cash flows | 206,861 us-gaap_OtherOperatingActivitiesCashFlowStatement |  | 101,754 us-gaap_OtherOperatingActivitiesCashFlowStatement |  | 118,767 us-gaap_OtherOperatingActivitiesCashFlowStatement |
Net cash provided by operating activities | 275,172 us-gaap_NetCashProvidedByUsedInOperatingActivities |  | 210,721 us-gaap_NetCashProvidedByUsedInOperatingActivities |  | 249,537 us-gaap_NetCashProvidedByUsedInOperatingActivities |
Cash flows from investing activities: |  |  |  |  |  |
Capital expenditures | (228,918)us-gaap_PaymentsToAcquireProductiveAssets | [1] | (118,307)us-gaap_PaymentsToAcquireProductiveAssets | [1] | (115,413)us-gaap_PaymentsToAcquireProductiveAssets | [1]
Acquisitions, net of cash acquired | (2,094,400)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired |  | (734,075)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired |  | (3,000)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired |
Investment in unconsolidated subsidiary | 0 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates |  | (44,959)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates |  | (43,424)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates |
Notes Receivables From Affiliates | 0 dar_NotesReceivablesFromAffiliates |  | 0 dar_NotesReceivablesFromAffiliates |  |  |
Gross proceeds from sale of property, plant and equipment and other assets | 9,262 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets |  | 2,358 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets |  | 3,870 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets |
Proceeds from Insurance Settlement | 1,550 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities |  | 1,981 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities |  | 4,272 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities |
Payments related to routes and other intangibles | (11,288)us-gaap_PaymentsToAcquireIntangibleAssets |  | (2,423)us-gaap_PaymentsToAcquireIntangibleAssets |  | (137)us-gaap_PaymentsToAcquireIntangibleAssets |
Net cash used by investing activities | (2,323,794)us-gaap_NetCashProvidedByUsedInInvestingActivities |  | (895,425)us-gaap_NetCashProvidedByUsedInInvestingActivities |  | (153,832)us-gaap_NetCashProvidedByUsedInInvestingActivities |
Cash flows from financing activities: |  |  |  |  |  |
Proceeds from long-term debt | 1,842,184 us-gaap_ProceedsFromIssuanceOfLongTermDebt |  | 344,704 us-gaap_ProceedsFromIssuanceOfLongTermDebt |  | 0 us-gaap_ProceedsFromIssuanceOfLongTermDebt |
Payments on long-term debt | (333,762)us-gaap_RepaymentsOfLongTermDebt |  | (580)us-gaap_RepaymentsOfLongTermDebt |  | (30,032)us-gaap_RepaymentsOfLongTermDebt |
Borrowings from revolving credit facility | 170,143 us-gaap_ProceedsFromLongTermLinesOfCredit |  | 293,235 us-gaap_ProceedsFromLongTermLinesOfCredit |  | 0 us-gaap_ProceedsFromLongTermLinesOfCredit |
Payments on revolving credit facility | (351,589)us-gaap_RepaymentsOfLongTermLinesOfCredit |  | (5,000)us-gaap_RepaymentsOfLongTermLinesOfCredit |  | 0 us-gaap_RepaymentsOfLongTermLinesOfCredit |
Net cash overdraft financing | 4,077 us-gaap_ProceedsFromRepaymentsOfBankOverdrafts |  | 0 us-gaap_ProceedsFromRepaymentsOfBankOverdrafts |  | 0 us-gaap_ProceedsFromRepaymentsOfBankOverdrafts |
Borrowings From Affiliates | 0 dar_BorrowingsFromAffiliates |  | 0 dar_BorrowingsFromAffiliates |  |  |
Deferred loan costs | (45,223)us-gaap_PaymentsOfDebtIssuanceCosts |  | (13,320)us-gaap_PaymentsOfDebtIssuanceCosts |  | 0 us-gaap_PaymentsOfDebtIssuanceCosts |
Issuance of common stock | 416 us-gaap_ProceedsFromIssuanceOfCommonStock |  | 840,558 us-gaap_ProceedsFromIssuanceOfCommonStock |  | 72 us-gaap_ProceedsFromIssuanceOfCommonStock |
Proceeds from Contributions from Parent | 0 us-gaap_ProceedsFromContributionsFromParent |  | 0 us-gaap_ProceedsFromContributionsFromParent |  | 0 us-gaap_ProceedsFromContributionsFromParent |
Minimum withholding taxes paid on stock awards | (10,026)dar_MinimumWithholdingTaxesPaidOnStockAwards |  | (3,289)dar_MinimumWithholdingTaxesPaidOnStockAwards |  | (4,084)dar_MinimumWithholdingTaxesPaidOnStockAwards |
Excess tax benefits from stock-based compensation | 2,420 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities |  | 1,138 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities |  | 2,652 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities |
Addition of noncontrolling interest | 1,201 us-gaap_ProceedsFromMinorityShareholders |  | 0 us-gaap_ProceedsFromMinorityShareholders |  | 0 us-gaap_ProceedsFromMinorityShareholders |
Distributions to noncontrolling interests | (4,272)us-gaap_PaymentsToMinorityShareholders |  | 0 us-gaap_PaymentsToMinorityShareholders |  | 0 us-gaap_PaymentsToMinorityShareholders |
Net cash provided/(used) in financing activities | 1,275,569 us-gaap_NetCashProvidedByUsedInFinancingActivities |  | 1,457,446 us-gaap_NetCashProvidedByUsedInFinancingActivities |  | (31,392)us-gaap_NetCashProvidedByUsedInFinancingActivities |
Effect of Exchange Rate on Cash and Cash Equivalents | 10,980 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents |  | (5,134)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents |  | 0 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents |
Net increase/(decrease) in cash and cash equivalents | (762,073)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease |  | 767,608 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease |  | 64,313 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease |
Cash and cash equivalents at beginning of year | 870,857 us-gaap_CashAndCashEquivalentsAtCarryingValue |  | 103,249 us-gaap_CashAndCashEquivalentsAtCarryingValue |  | 38,936 us-gaap_CashAndCashEquivalentsAtCarryingValue |
Cash and cash equivalents at end of year | 108,784 us-gaap_CashAndCashEquivalentsAtCarryingValue |  | 870,857 us-gaap_CashAndCashEquivalentsAtCarryingValue |  | 103,249 us-gaap_CashAndCashEquivalentsAtCarryingValue |
Issuer [Member] |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 68,311 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 108,967 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 130,770 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Cash flows from operating activities: |  |  |  |  |  |
Earnings in investments in subsidiaries | (223,790)dar_EarningsInInvestmentsInSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (105,178)dar_EarningsInInvestmentsInSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (119,953)dar_EarningsInInvestmentsInSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Other operating cash flows | 226,120 us-gaap_OtherOperatingActivitiesCashFlowStatement / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 135,315 us-gaap_OtherOperatingActivitiesCashFlowStatement / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 175,098 us-gaap_OtherOperatingActivitiesCashFlowStatement / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Net cash provided by operating activities | 70,641 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 139,104 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 185,915 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Cash flows from investing activities: |  |  |  |  |  |
Capital expenditures | (39,248)us-gaap_PaymentsToAcquireProductiveAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (45,173)us-gaap_PaymentsToAcquireProductiveAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (49,619)us-gaap_PaymentsToAcquireProductiveAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Acquisitions, net of cash acquired | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (3,000)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Investment in unconsolidated subsidiary | (1,483,007)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (600,537)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (43,449)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Notes Receivables From Affiliates | 0 dar_NotesReceivablesFromAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 0 dar_NotesReceivablesFromAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |  |
Gross proceeds from sale of property, plant and equipment and other assets | 1,522 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 1,329 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 2,083 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Proceeds from Insurance Settlement | 1,350 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 1,531 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 1,305 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Payments related to routes and other intangibles | (9,640)us-gaap_PaymentsToAcquireIntangibleAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (2,423)us-gaap_PaymentsToAcquireIntangibleAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (137)us-gaap_PaymentsToAcquireIntangibleAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Net cash used by investing activities | (1,529,023)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (645,273)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (92,817)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Cash flows from financing activities: |  |  |  |  |  |
Proceeds from long-term debt | 1,100,000 us-gaap_ProceedsFromIssuanceOfLongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 200,000 us-gaap_ProceedsFromIssuanceOfLongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |  |
Payments on long-term debt | (264,500)us-gaap_RepaymentsOfLongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 0 us-gaap_RepaymentsOfLongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (30,000)us-gaap_RepaymentsOfLongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Borrowings from revolving credit facility | 122,445 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 245,000 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |  |
Payments on revolving credit facility | (297,445)us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (5,000)us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |  |
Net cash overdraft financing | 0 us-gaap_ProceedsFromRepaymentsOfBankOverdrafts / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |  |  |  |
Borrowings From Affiliates | 0 dar_BorrowingsFromAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 0 dar_BorrowingsFromAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |  |
Deferred loan costs | (41,748)us-gaap_PaymentsOfDebtIssuanceCosts / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (11,916)us-gaap_PaymentsOfDebtIssuanceCosts / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |  |
Issuance of common stock | 416 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 840,558 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 72 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Proceeds from Contributions from Parent | 0 us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 0 us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 0 us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Minimum withholding taxes paid on stock awards | (10,026)dar_MinimumWithholdingTaxesPaidOnStockAwards / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (3,289)dar_MinimumWithholdingTaxesPaidOnStockAwards / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (4,084)dar_MinimumWithholdingTaxesPaidOnStockAwards / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Excess tax benefits from stock-based compensation | 2,420 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 1,138 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 2,652 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Addition of noncontrolling interest | 0 us-gaap_ProceedsFromMinorityShareholders / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |  |  |  |
Distributions to noncontrolling interests | 0 us-gaap_PaymentsToMinorityShareholders / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |  |  |  |
Net cash provided/(used) in financing activities | 611,562 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 1,266,491 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (31,360)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Effect of Exchange Rate on Cash and Cash Equivalents | 0 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 0 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |  |
Net increase/(decrease) in cash and cash equivalents | (846,820)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 760,322 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 61,738 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Cash and cash equivalents at beginning of year | 857,267 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 96,945 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |  |
Cash and cash equivalents at end of year | 10,447 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 857,267 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 96,945 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Guarantors [Member] |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 155,250 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 107,317 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 121,321 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Cash flows from operating activities: |  |  |  |  |  |
Earnings in investments in subsidiaries | 0 dar_EarningsInInvestmentsInSubsidiaries / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 dar_EarningsInInvestmentsInSubsidiaries / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 dar_EarningsInInvestmentsInSubsidiaries / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Other operating cash flows | (34,238)us-gaap_OtherOperatingActivitiesCashFlowStatement / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | (39,459)us-gaap_OtherOperatingActivitiesCashFlowStatement / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | (56,445)us-gaap_OtherOperatingActivitiesCashFlowStatement / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Net cash provided by operating activities | 121,012 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 67,858 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 64,876 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Cash flows from investing activities: |  |  |  |  |  |
Capital expenditures | (84,299)us-gaap_PaymentsToAcquireProductiveAssets / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | (68,716)us-gaap_PaymentsToAcquireProductiveAssets / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | (65,794)us-gaap_PaymentsToAcquireProductiveAssets / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Acquisitions, net of cash acquired | (19,394)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | (121,440)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Investment in unconsolidated subsidiary | (1,442,788)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | (63,115)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Notes Receivables From Affiliates | (204,074)dar_NotesReceivablesFromAffiliates / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | (370,996)dar_NotesReceivablesFromAffiliates / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  |  |
Gross proceeds from sale of property, plant and equipment and other assets | 5,155 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 1,029 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 1,787 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Proceeds from Insurance Settlement | 200 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 450 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 2,967 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Payments related to routes and other intangibles | 0 us-gaap_PaymentsToAcquireIntangibleAssets / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_PaymentsToAcquireIntangibleAssets / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_PaymentsToAcquireIntangibleAssets / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Net cash used by investing activities | (1,745,200)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | (622,788)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | (61,040)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Cash flows from financing activities: |  |  |  |  |  |
Proceeds from long-term debt | 0 us-gaap_ProceedsFromIssuanceOfLongTermDebt / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_ProceedsFromIssuanceOfLongTermDebt / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  |  |
Payments on long-term debt | (87)us-gaap_RepaymentsOfLongTermDebt / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | (82)us-gaap_RepaymentsOfLongTermDebt / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | (32)us-gaap_RepaymentsOfLongTermDebt / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Borrowings from revolving credit facility | 0 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  |  |
Payments on revolving credit facility | 0 us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  |  |
Net cash overdraft financing | 0 us-gaap_ProceedsFromRepaymentsOfBankOverdrafts / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  |  |  |  |
Borrowings From Affiliates | 0 dar_BorrowingsFromAffiliates / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 dar_BorrowingsFromAffiliates / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  |  |
Deferred loan costs | 0 us-gaap_PaymentsOfDebtIssuanceCosts / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_PaymentsOfDebtIssuanceCosts / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  |  |
Issuance of common stock | 0 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Proceeds from Contributions from Parent | 1,632,618 us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 555,552 us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Minimum withholding taxes paid on stock awards | 0 dar_MinimumWithholdingTaxesPaidOnStockAwards / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 dar_MinimumWithholdingTaxesPaidOnStockAwards / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 dar_MinimumWithholdingTaxesPaidOnStockAwards / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Excess tax benefits from stock-based compensation | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Addition of noncontrolling interest | 0 us-gaap_ProceedsFromMinorityShareholders / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  |  |  |  |
Distributions to noncontrolling interests | 0 us-gaap_PaymentsToMinorityShareholders / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  |  |  |  |
Net cash provided/(used) in financing activities | 1,632,531 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 555,470 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | (32)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Effect of Exchange Rate on Cash and Cash Equivalents | 0 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  |  |
Net increase/(decrease) in cash and cash equivalents | 8,343 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 540 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 3,804 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Cash and cash equivalents at beginning of year | 6,117 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 5,577 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  |  |
Cash and cash equivalents at end of year | 14,460 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 6,117 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 5,577 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Non-guarantors [Member] |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 68,540 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | (2,139)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | (1,368)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Cash flows from operating activities: |  |  |  |  |  |
Earnings in investments in subsidiaries | 0 dar_EarningsInInvestmentsInSubsidiaries / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 dar_EarningsInInvestmentsInSubsidiaries / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 dar_EarningsInInvestmentsInSubsidiaries / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Other operating cash flows | 14,979 us-gaap_OtherOperatingActivitiesCashFlowStatement / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 5,898 us-gaap_OtherOperatingActivitiesCashFlowStatement / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 114 us-gaap_OtherOperatingActivitiesCashFlowStatement / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Net cash provided by operating activities | 83,519 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 3,759 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | (1,254)us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Cash flows from investing activities: |  |  |  |  |  |
Capital expenditures | (105,371)us-gaap_PaymentsToAcquireProductiveAssets / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | (4,418)us-gaap_PaymentsToAcquireProductiveAssets / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 us-gaap_PaymentsToAcquireProductiveAssets / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Acquisitions, net of cash acquired | (2,075,006)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | (612,635)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Investment in unconsolidated subsidiary | (440,619)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | (44,959)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | (43,424)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Notes Receivables From Affiliates | 204,074 dar_NotesReceivablesFromAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 dar_NotesReceivablesFromAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |  |
Gross proceeds from sale of property, plant and equipment and other assets | 2,585 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Proceeds from Insurance Settlement | 0 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Payments related to routes and other intangibles | (1,648)us-gaap_PaymentsToAcquireIntangibleAssets / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 us-gaap_PaymentsToAcquireIntangibleAssets / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 us-gaap_PaymentsToAcquireIntangibleAssets / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Net cash used by investing activities | (2,415,985)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | (662,012)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | (43,424)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Cash flows from financing activities: |  |  |  |  |  |
Proceeds from long-term debt | 742,184 us-gaap_ProceedsFromIssuanceOfLongTermDebt / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 144,704 us-gaap_ProceedsFromIssuanceOfLongTermDebt / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |  |
Payments on long-term debt | (69,175)us-gaap_RepaymentsOfLongTermDebt / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | (498)us-gaap_RepaymentsOfLongTermDebt / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 us-gaap_RepaymentsOfLongTermDebt / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Borrowings from revolving credit facility | 47,698 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 48,235 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |  |
Payments on revolving credit facility | (54,144)us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |  |
Net cash overdraft financing | 4,077 us-gaap_ProceedsFromRepaymentsOfBankOverdrafts / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |  |  |  |
Borrowings From Affiliates | 0 dar_BorrowingsFromAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 370,996 dar_BorrowingsFromAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |  |
Deferred loan costs | (3,475)us-gaap_PaymentsOfDebtIssuanceCosts / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | (1,404)us-gaap_PaymentsOfDebtIssuanceCosts / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |  |
Issuance of common stock | 0 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Proceeds from Contributions from Parent | 1,733,796 us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 108,100 us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 43,449 us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Minimum withholding taxes paid on stock awards | 0 dar_MinimumWithholdingTaxesPaidOnStockAwards / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 dar_MinimumWithholdingTaxesPaidOnStockAwards / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 dar_MinimumWithholdingTaxesPaidOnStockAwards / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Excess tax benefits from stock-based compensation | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Addition of noncontrolling interest | 1,201 us-gaap_ProceedsFromMinorityShareholders / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |  |  |  |
Distributions to noncontrolling interests | (4,272)us-gaap_PaymentsToMinorityShareholders / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |  |  |  |
Net cash provided/(used) in financing activities | 2,397,890 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 670,133 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 43,449 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Effect of Exchange Rate on Cash and Cash Equivalents | 10,980 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | (5,134)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |  |
Net increase/(decrease) in cash and cash equivalents | 76,404 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 6,746 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | (1,229)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Cash and cash equivalents at beginning of year | 7,473 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 727 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |  |
Cash and cash equivalents at end of year | 83,877 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 7,473 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 727 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Eliminations [Member] |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | (223,790)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | (105,178)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | (119,953)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Cash flows from operating activities: |  |  |  |  |  |
Earnings in investments in subsidiaries | 223,790 dar_EarningsInInvestmentsInSubsidiaries / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 105,178 dar_EarningsInInvestmentsInSubsidiaries / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 119,953 dar_EarningsInInvestmentsInSubsidiaries / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Other operating cash flows | 0 us-gaap_OtherOperatingActivitiesCashFlowStatement / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_OtherOperatingActivitiesCashFlowStatement / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_OtherOperatingActivitiesCashFlowStatement / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Net cash provided by operating activities | 0 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Cash flows from investing activities: |  |  |  |  |  |
Capital expenditures | 0 us-gaap_PaymentsToAcquireProductiveAssets / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_PaymentsToAcquireProductiveAssets / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_PaymentsToAcquireProductiveAssets / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Acquisitions, net of cash acquired | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Investment in unconsolidated subsidiary | 3,366,414 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 663,652 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 43,449 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Notes Receivables From Affiliates | 0 dar_NotesReceivablesFromAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 370,996 dar_NotesReceivablesFromAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |  |
Gross proceeds from sale of property, plant and equipment and other assets | 0 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 dar_GrossProceedsFromDisposalOfPropertyPlantAndEquipmentAndOtherAssets / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Proceeds from Insurance Settlement | 0 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Payments related to routes and other intangibles | 0 us-gaap_PaymentsToAcquireIntangibleAssets / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_PaymentsToAcquireIntangibleAssets / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_PaymentsToAcquireIntangibleAssets / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Net cash used by investing activities | 3,366,414 us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 1,034,648 us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 43,449 us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Cash flows from financing activities: |  |  |  |  |  |
Proceeds from long-term debt | 0 us-gaap_ProceedsFromIssuanceOfLongTermDebt / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_ProceedsFromIssuanceOfLongTermDebt / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |  |
Payments on long-term debt | 0 us-gaap_RepaymentsOfLongTermDebt / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_RepaymentsOfLongTermDebt / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_RepaymentsOfLongTermDebt / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Borrowings from revolving credit facility | 0 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |  |
Payments on revolving credit facility | 0 us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_RepaymentsOfLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |  |
Net cash overdraft financing | 0 us-gaap_ProceedsFromRepaymentsOfBankOverdrafts / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |  |  |  |
Borrowings From Affiliates | 0 dar_BorrowingsFromAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | (370,996)dar_BorrowingsFromAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |  |
Deferred loan costs | 0 us-gaap_PaymentsOfDebtIssuanceCosts / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_PaymentsOfDebtIssuanceCosts / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |  |
Issuance of common stock | 0 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Proceeds from Contributions from Parent | (3,366,414)us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | (663,652)us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | (43,449)us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Minimum withholding taxes paid on stock awards | 0 dar_MinimumWithholdingTaxesPaidOnStockAwards / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 dar_MinimumWithholdingTaxesPaidOnStockAwards / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 dar_MinimumWithholdingTaxesPaidOnStockAwards / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Excess tax benefits from stock-based compensation | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Addition of noncontrolling interest | 0 us-gaap_ProceedsFromMinorityShareholders / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |  |  |  |
Distributions to noncontrolling interests | 0 us-gaap_PaymentsToMinorityShareholders / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |  |  |  |
Net cash provided/(used) in financing activities | (3,366,414)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | (1,034,648)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | (43,449)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Effect of Exchange Rate on Cash and Cash Equivalents | 0 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |  |
Net increase/(decrease) in cash and cash equivalents | 0 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Cash and cash equivalents at beginning of year | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |  |
Cash and cash equivalents at end of year | $ 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | $ 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | $ 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
[1] | Excludes the capital assets acquired as part of the acquisition of assets related to VION Acquisition and Custom Blenders acquisition in fiscal 2014 of approximately $984.2 million, the Terra Transaction and the Rothsay Acquisition in fiscal 2013 of approximately $167.0 million and the BioPur acquisition in fiscal 2012 of approximately $0.6 million

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585 + Details
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