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Guarantor Financial Information Guarantor Financial Information Condensed Consolidating Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 29, 2018 | Sep. 29, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2016 | Oct. 01, 2016 | Jul. 02, 2016 | Apr. 02, 2016 | Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016
Net income | $ 42,144 | $ (5,137) | $ (29,138) | $ 98,075 | $ 106,944 | $ 8,684 | $ 10,328 | $ 7,398 | $ 105,944 | $ 133,354 | $ 107,224
Foreign currency translation adjustments |  |  |  |  |  |  |  |  | (87,474) | 121,810 | (5,593)
Pension liability adjustments, net of tax |  |  |  |  |  |  |  |  | (2,730) | 5,829 | (1,016)
Total other comprehensive income/(loss), net of tax |  |  |  |  |  |  |  |  | (90,787) | 126,543 | (5,984)
Total comprehensive income |  |  |  |  |  |  |  |  | 15,157 | 259,897 | 101,240
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 3,894 | 947 | 3,015
Comprehensive income/(loss) attributable to Darling |  |  |  |  |  |  |  |  | 11,263 | 258,950 | 98,225
Natural Gas Swap [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives |  |  |  |  |  |  |  |  | 23 | (18) |
Total derivatives, net of tax |  |  |  |  |  |  |  |  | 23 | (18) | 0
Corn Option [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives |  |  |  |  |  |  |  |  | (1,687) | (1,078) | 625
Total derivatives, net of tax |  |  |  |  |  |  |  |  | (1,687) | (1,078) | 625
Foreign Exchange Contract [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives |  |  |  |  |  |  |  |  | 1,081 |  |
Total derivatives, net of tax |  |  |  |  |  |  |  |  | 1,081 | 0 | 0
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 105,944 | 133,354 | 107,224
Foreign currency translation adjustments |  |  |  |  |  |  |  |  | 1,724 | 0 | 0
Pension liability adjustments, net of tax |  |  |  |  |  |  |  |  | (4,184) | 4,797 | 1,766
Total other comprehensive income/(loss), net of tax |  |  |  |  |  |  |  |  | (4,124) | 3,701 | 2,391
Total comprehensive income |  |  |  |  |  |  |  |  | 101,820 | 137,055 | 109,615
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income/(loss) attributable to Darling |  |  |  |  |  |  |  |  | 101,820 | 137,055 | 109,615
Parent Company [Member] | Natural Gas Swap [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives |  |  |  |  |  |  |  |  | 23 | (18) |
Parent Company [Member] | Corn Option [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives |  |  |  |  |  |  |  |  | (1,687) | (1,078) | 625
Parent Company [Member] | Foreign Exchange Contract [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives, net of tax |  |  |  |  |  |  |  |  | 0 |  |
Guarantors [Member] |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 99,353 | 251,667 | 102,699
Foreign currency translation adjustments |  |  |  |  |  |  |  |  | (53,387) | 0 | 0
Pension liability adjustments, net of tax |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total other comprehensive income/(loss), net of tax |  |  |  |  |  |  |  |  | (53,387) | 0 | 0
Total comprehensive income |  |  |  |  |  |  |  |  | 45,966 | 251,667 | 102,699
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income/(loss) attributable to Darling |  |  |  |  |  |  |  |  | 45,966 | 251,667 | 102,699
Guarantors [Member] | Natural Gas Swap [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives |  |  |  |  |  |  |  |  | 0 | 0 |
Guarantors [Member] | Corn Option [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives |  |  |  |  |  |  |  |  | 0 | 0 | 0
Guarantors [Member] | Foreign Exchange Contract [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives, net of tax |  |  |  |  |  |  |  |  | 0 |  |
Non-guarantors [Member] |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 171,590 | 186,913 | 120,648
Foreign currency translation adjustments |  |  |  |  |  |  |  |  | (35,811) | 121,810 | (5,593)
Pension liability adjustments, net of tax |  |  |  |  |  |  |  |  | 1,454 | 1,032 | (2,782)
Total other comprehensive income/(loss), net of tax |  |  |  |  |  |  |  |  | (33,276) | 122,842 | (8,375)
Total comprehensive income |  |  |  |  |  |  |  |  | 138,314 | 309,755 | 112,273
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 3,894 | 947 | 3,015
Comprehensive income/(loss) attributable to Darling |  |  |  |  |  |  |  |  | 134,420 | 308,808 | 109,258
Non-guarantors [Member] | Natural Gas Swap [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives |  |  |  |  |  |  |  |  | 0 | 0 |
Non-guarantors [Member] | Corn Option [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives |  |  |  |  |  |  |  |  | 0 | 0 | 0
Non-guarantors [Member] | Foreign Exchange Contract [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives, net of tax |  |  |  |  |  |  |  |  | 1,081 |  |
Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | (270,943) | (438,580) | (223,347)
Foreign currency translation adjustments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Pension liability adjustments, net of tax |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total other comprehensive income/(loss), net of tax |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total comprehensive income |  |  |  |  |  |  |  |  | (270,943) | (438,580) | (223,347)
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income/(loss) attributable to Darling |  |  |  |  |  |  |  |  | (270,943) | (438,580) | (223,347)
Eliminations [Member] | Natural Gas Swap [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives |  |  |  |  |  |  |  |  | 0 | 0 |
Eliminations [Member] | Corn Option [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives |  |  |  |  |  |  |  |  | 0 | $ 0 | $ 0
Eliminations [Member] | Foreign Exchange Contract [Member] |  |  |  |  |  |  |  |  |  |  |
Total derivatives, net of tax |  |  |  |  |  |  |  |  | $ 0 |  |

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