XML 66 R96.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Business Segments (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 03, 2015 | Sep. 27, 2014 | Jun. 28, 2014 | Mar. 29, 2014 | Dec. 28, 2013 | Sep. 28, 2013 | Jun. 29, 2013 | Mar. 30, 2013 | Jan. 03, 2015 | Dec. 28, 2013 | Dec. 29, 2012 | Dec. 31, 2011
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales | $ 1,000,203 us-gaap_SalesRevenueNet | $ 978,665 us-gaap_SalesRevenueNet | $ 1,031,283 us-gaap_SalesRevenueNet | $ 946,292 us-gaap_SalesRevenueNet | $ 447,939 us-gaap_SalesRevenueNet | $ 445,130 us-gaap_SalesRevenueNet | $ 443,542 us-gaap_SalesRevenueNet | $ 465,657 us-gaap_SalesRevenueNet | $ 3,956,443 us-gaap_SalesRevenueNet |  | $ 1,802,268 us-gaap_SalesRevenueNet |  | $ 1,772,552 us-gaap_SalesRevenueNet |  |
Cost of sales and operating expenses |  | 22,900 us-gaap_CostOfGoodsAndServicesSold | 24,300 us-gaap_CostOfGoodsAndServicesSold | 14,900 us-gaap_CostOfGoodsAndServicesSold | 19,200 us-gaap_CostOfGoodsAndServicesSold | 19,300 us-gaap_CostOfGoodsAndServicesSold | 19,900 us-gaap_CostOfGoodsAndServicesSold | 20,200 us-gaap_CostOfGoodsAndServicesSold | 3,123,171 us-gaap_CostOfGoodsAndServicesSold |  | 1,339,819 us-gaap_CostOfGoodsAndServicesSold |  | 1,303,727 us-gaap_CostOfGoodsAndServicesSold |  |
Selling, general and administrative expense |  |  |  |  |  |  |  |  | 374,580 us-gaap_SellingGeneralAndAdministrativeExpense |  | 170,825 us-gaap_SellingGeneralAndAdministrativeExpense |  | 151,713 us-gaap_SellingGeneralAndAdministrativeExpense |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 269,517 us-gaap_DepreciationAndAmortization |  | 98,787 us-gaap_DepreciationAndAmortization |  | 85,371 us-gaap_DepreciationAndAmortization |  |
Segment operating income/(loss) | 39,662 us-gaap_OperatingIncomeLoss | 49,925 us-gaap_OperatingIncomeLoss | 75,485 us-gaap_OperatingIncomeLoss | (564)us-gaap_OperatingIncomeLoss | 18,536 us-gaap_OperatingIncomeLoss | 41,652 us-gaap_OperatingIncomeLoss | 50,802 us-gaap_OperatingIncomeLoss | 58,576 us-gaap_OperatingIncomeLoss | 164,508 us-gaap_OperatingIncomeLoss |  | 169,566 us-gaap_OperatingIncomeLoss |  | 231,741 us-gaap_OperatingIncomeLoss |  |
Equity in net income of unconsolidated subsidiaries |  |  |  |  |  |  |  |  | 65,609 us-gaap_IncomeLossFromEquityMethodInvestments |  | 7,660 us-gaap_IncomeLossFromEquityMethodInvestments |  | (2,662)us-gaap_IncomeLossFromEquityMethodInvestments |  |
Total other expense |  |  |  |  |  |  |  |  | (148,665)us-gaap_NonoperatingIncomeExpense |  | (13,548)us-gaap_NonoperatingIncomeExpense |  | (22,294)us-gaap_NonoperatingIncomeExpense |  |
Income before income taxes | 73,580 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 27,090 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 50,078 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (69,296)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 23,078 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 45,024 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 42,753 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 52,823 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 81,452 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |  | 163,678 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |  | 206,785 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |  |
Segment assets | 5,170,713 us-gaap_Assets |  |  |  | 3,244,133 us-gaap_Assets |  |  |  | 5,170,713 us-gaap_Assets |  | 3,244,133 us-gaap_Assets |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 228,918 us-gaap_PaymentsToAcquireProductiveAssets | [1] | 118,307 us-gaap_PaymentsToAcquireProductiveAssets | [1] | 115,413 us-gaap_PaymentsToAcquireProductiveAssets | [1] |
Long-Lived Assets | 4,117,100 us-gaap_NoncurrentAssets |  |  |  |  |  |  |  | 4,117,100 us-gaap_NoncurrentAssets |  |  |  |  |  |
North America |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  | 2,131,978 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember |  | 1,802,268 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember |  | 1,772,552 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember
Long-Lived Assets | 2,422,050 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember |  |  |  |  |  |  |  | 2,422,050 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember |  |  |  |  |  |
Europe |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  | 1,438,320 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember |  | 0 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember |  | 0 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember
Long-Lived Assets | 1,407,402 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember |  |  |  |  |  |  |  | 1,407,402 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember |  |  |  |  |  |
China |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  | 229,876 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_CN |  | 0 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_CN |  | 0 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_CN
Long-Lived Assets | 186,994 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = country_CN |  |  |  |  |  |  |  | 186,994 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = country_CN |  |  |  |  |  |
South America |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  | 73,241 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = us-gaap_SouthAmericaMember |  | 0 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = us-gaap_SouthAmericaMember |  | 0 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = us-gaap_SouthAmericaMember
Long-Lived Assets | 93,264 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = us-gaap_SouthAmericaMember |  |  |  |  |  |  |  | 93,264 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = us-gaap_SouthAmericaMember |  |  |  |  |  |
Other |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  | 83,028 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = dar_OtherGeographicalMember |  | 0 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = dar_OtherGeographicalMember |  | 0 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = dar_OtherGeographicalMember
Long-Lived Assets | 7,390 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = dar_OtherGeographicalMember |  |  |  |  |  |  |  | 7,390 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = dar_OtherGeographicalMember |  |  |  |  |  |
Feed Ingredients [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 2,421,462 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 1,788,563 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 1,766,611 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  |
Cost of sales and operating expenses |  |  |  |  |  |  |  |  | 1,864,835 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 1,329,057 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 1,299,255 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  |
Gross Margin |  |  |  |  |  |  |  |  | 556,627 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 459,506 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 467,356 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  |
Selling, general and administrative expense |  |  |  |  |  |  |  |  | 205,484 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 149,160 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 123,483 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  |
Acquisition costs |  |  |  |  |  |  |  |  | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 158,871 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 93,120 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 81,122 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  |
Segment operating income/(loss) |  |  |  |  |  |  |  |  | 192,272 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 217,226 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 262,751 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  |
Equity in net income of unconsolidated subsidiaries |  |  |  |  |  |  |  |  | 1,842 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 0 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 0 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  |
Segment income |  |  |  |  |  |  |  |  | 194,114 dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 217,226 dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 262,751 dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  |
Segment assets | 2,667,369 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  |  |  | 1,986,564 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  |  |  | 2,667,369 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 1,986,564 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 135,923 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 84,616 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  | 84,344 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = dar_FeedIngredientsMember |  |
Food Ingredients [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 1,248,352 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  |
Cost of sales and operating expenses |  |  |  |  |  |  |  |  | 1,029,488 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  |
Gross Margin |  |  |  |  |  |  |  |  | 218,864 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  |
Selling, general and administrative expense |  |  |  |  |  |  |  |  | 118,716 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  |
Acquisition costs |  |  |  |  |  |  |  |  | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 73,274 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  |
Segment operating income/(loss) |  |  |  |  |  |  |  |  | 26,874 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  |
Equity in net income of unconsolidated subsidiaries |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  |
Segment income |  |  |  |  |  |  |  |  | 26,874 dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  |
Segment assets | 1,734,387 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  |  |  | 0 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  |  |  | 1,734,387 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 61,657 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  | 0 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = dar_FoodIngredientsMember |  |
Fuel Ingredients [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 286,629 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 13,705 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 5,941 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  |
Cost of sales and operating expenses |  |  |  |  |  |  |  |  | 228,848 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 10,762 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 4,472 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  |
Gross Margin |  |  |  |  |  |  |  |  | 57,781 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 2,943 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 1,469 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  |
Selling, general and administrative expense |  |  |  |  |  |  |  |  | 8,596 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 928 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 326 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  |
Acquisition costs |  |  |  |  |  |  |  |  | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 27,898 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 368 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 122 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  |
Segment operating income/(loss) |  |  |  |  |  |  |  |  | 21,287 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 1,647 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 1,021 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  |
Equity in net income of unconsolidated subsidiaries |  |  |  |  |  |  |  |  | 63,767 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 7,660 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | (2,662)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  |
Segment income |  |  |  |  |  |  |  |  | 85,054 dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 9,307 dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | (1,641)dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  |
Segment assets | 693,921 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  |  |  | 179,722 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  |  |  | 693,921 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 179,722 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 21,392 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 162 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  | 66 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = dar_FuelIngredientsMember |  |
Corporate Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 0 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 0 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 0 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |
Cost of sales and operating expenses |  |  |  |  |  |  |  |  | 0 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 0 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 0 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |
Gross Margin |  |  |  |  |  |  |  |  | 0 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 0 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 0 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |
Selling, general and administrative expense |  |  |  |  |  |  |  |  | 41,784 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 20,737 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 27,904 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |
Acquisition costs |  |  |  |  |  |  |  |  | 24,667 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 23,271 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 9,474 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 5,299 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 4,127 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |
Segment operating income/(loss) |  |  |  |  |  |  |  |  | (75,925)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | (49,307)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | (32,031)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |
Equity in net income of unconsolidated subsidiaries |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 0 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 0 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |
Segment income |  |  |  |  |  |  |  |  | (75,925)dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | (49,307)dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | (32,031)dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |
Segment assets | 75,036 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |  |  | 1,077,847 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |  |  | 75,036 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 1,077,847 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 9,946 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 33,529 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 31,003 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 3,956,443 us-gaap_SalesRevenueNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 1,802,268 us-gaap_SalesRevenueNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 1,772,552 us-gaap_SalesRevenueNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  |
Cost of sales and operating expenses |  |  |  |  |  |  |  |  | 3,123,171 us-gaap_CostOfGoodsAndServicesSold / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 1,339,819 us-gaap_CostOfGoodsAndServicesSold / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 1,303,727 us-gaap_CostOfGoodsAndServicesSold / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  |
Gross Margin |  |  |  |  |  |  |  |  | 833,272 us-gaap_GrossProfit / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 462,449 us-gaap_GrossProfit / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 468,825 us-gaap_GrossProfit / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  |
Selling, general and administrative expense |  |  |  |  |  |  |  |  | 374,580 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 170,825 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 151,713 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  |
Acquisition costs |  |  |  |  |  |  |  |  | 24,667 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 23,271 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 269,517 us-gaap_DepreciationAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 98,787 us-gaap_DepreciationAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 85,371 us-gaap_DepreciationAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  |
Segment operating income/(loss) |  |  |  |  |  |  |  |  | 164,508 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 169,566 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 231,741 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  |
Equity in net income of unconsolidated subsidiaries |  |  |  |  |  |  |  |  | 65,609 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 7,660 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | (2,662)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  |
Segment income |  |  |  |  |  |  |  |  | 230,117 dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 177,226 dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | 229,079 dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  |
Segment assets | $ 5,170,713 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  |  |  | $ 3,244,133 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  |  |  | $ 5,170,713 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  | $ 3,244,133 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember |  |  |  |
[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

X
- Definition Income (Loss) from Continuing Operations before Nonoperating Income (Expense), Income Taxes, Extraordinary Items, Noncontrolling Interest + References No definition available. + Details
Name: | dar_IncomeLossfromContinuingOperationsbeforeNonoperatingIncomeExpenseIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Namespace Prefix: | dar_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460 + Details
Name: | us-gaap_BusinessCombinationAcquisitionRelatedCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_CostOfGoodsAndServicesSold
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
Name: | us-gaap_DepreciationAndAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_GrossProfit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35710027&loc=d3e41242-110953 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 10 -Article 5 + Details
Name: | us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.12) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 + Details
Name: | us-gaap_IncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 + Details
Name: | us-gaap_NoncurrentAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 + Details
Name: | us-gaap_NonoperatingIncomeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireProductiveAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
Name: | us-gaap_SalesRevenueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 4 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34747878&loc=d3e3636-108311 + Details
Name: | us-gaap_SellingGeneralAndAdministrativeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=dar_FeedIngredientsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=dar_FoodIngredientsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=dar_FuelIngredientsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_CN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=dar_OtherGeographicalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_EuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_NorthAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_SouthAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |