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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. 31, 2016 | Oct. 01, 2016 | Jul. 02, 2016 | Apr. 02, 2016 | Jan. 02, 2016 | Oct. 03, 2015 | Jul. 04, 2015 | Apr. 04, 2015 | Dec. 31, 2016 | Jan. 02, 2016 | Jan. 03, 2015
Net income | $ 41,680 | $ 28,890 | $ 33,991 | $ 2,663 | $ 85,875 | $ (7,357) | $ 4,937 | $ 1,824 | $ 107,224 | $ 85,279 | $ 68,311
Foreign currency translation adjustments |  |  |  |  |  |  |  |  | (5,593) | (162,436) | (119,684)
Pension adjustments |  |  |  |  |  |  |  |  | (1,016) | 4,202 | (20,381)
Total other comprehensive income, net of tax |  |  |  |  |  |  |  |  | (5,984) | (156,467) | (141,437)
Total comprehensive income/(loss) |  |  |  |  |  |  |  |  | 101,240 | (71,188) | (73,126)
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 3,015 | 9,139 | 10,296
Comprehensive income/(loss) attributable to Darling |  |  |  |  |  |  |  |  | 98,225 | (80,327) | (83,422)
Natural Gas Swap [Member] |  |  |  |  |  |  |  |  |  |  |
Total natural gas derivatives |  |  |  |  |  |  |  |  |  |  | (113)
Corn Option [Member] |  |  |  |  |  |  |  |  |  |  |
Total natural gas derivatives |  |  |  |  |  |  |  |  | 625 | 1,767 | (1,259)
Issuer [Member] |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 107,224 | 85,279 | 68,311
Foreign currency translation adjustments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Pension adjustments |  |  |  |  |  |  |  |  | 1,766 | 83 | (11,844)
Total other comprehensive income, net of tax |  |  |  |  |  |  |  |  | 2,391 | 1,850 | (13,216)
Total comprehensive income/(loss) |  |  |  |  |  |  |  |  | 109,615 | 87,129 | 55,095
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income/(loss) attributable to Darling |  |  |  |  |  |  |  |  | 109,615 | 87,129 | 55,095
Issuer [Member] | Natural Gas Swap [Member] |  |  |  |  |  |  |  |  |  |  |
Total natural gas derivatives |  |  |  |  |  |  |  |  |  |  | (113)
Issuer [Member] | Corn Option [Member] |  |  |  |  |  |  |  |  |  |  |
Total natural gas derivatives |  |  |  |  |  |  |  |  | 625 | 1,767 | (1,259)
Guarantors [Member] |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 102,699 | 101,828 | 155,250
Foreign currency translation adjustments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Pension adjustments |  |  |  |  |  |  |  |  | 0 | 109 | (34)
Total other comprehensive income, net of tax |  |  |  |  |  |  |  |  | 0 | 109 | (34)
Total comprehensive income/(loss) |  |  |  |  |  |  |  |  | 102,699 | 101,937 | 155,216
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income/(loss) attributable to Darling |  |  |  |  |  |  |  |  | 102,699 | 101,937 | 155,216
Guarantors [Member] | Natural Gas Swap [Member] |  |  |  |  |  |  |  |  |  |  |
Total natural gas derivatives |  |  |  |  |  |  |  |  |  |  | 0
Guarantors [Member] | Corn Option [Member] |  |  |  |  |  |  |  |  |  |  |
Total natural gas derivatives |  |  |  |  |  |  |  |  | 0 | 0 | 0
Non-guarantors [Member] |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 120,648 | 96,543 | 68,540
Foreign currency translation adjustments |  |  |  |  |  |  |  |  | (5,593) | (162,436) | (119,684)
Pension adjustments |  |  |  |  |  |  |  |  | (2,782) | 4,010 | (8,503)
Total other comprehensive income, net of tax |  |  |  |  |  |  |  |  | (8,375) | (158,426) | (128,187)
Total comprehensive income/(loss) |  |  |  |  |  |  |  |  | 112,273 | (61,883) | (59,647)
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 3,015 | 9,139 | 10,296
Comprehensive income/(loss) attributable to Darling |  |  |  |  |  |  |  |  | 109,258 | (71,022) | (69,943)
Non-guarantors [Member] | Natural Gas Swap [Member] |  |  |  |  |  |  |  |  |  |  |
Total natural gas derivatives |  |  |  |  |  |  |  |  |  |  | 0
Non-guarantors [Member] | Corn Option [Member] |  |  |  |  |  |  |  |  |  |  |
Total natural gas derivatives |  |  |  |  |  |  |  |  | 0 | 0 | 0
Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | (223,347) | (198,371) | (223,790)
Foreign currency translation adjustments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Pension adjustments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total other comprehensive income, net of tax |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total comprehensive income/(loss) |  |  |  |  |  |  |  |  | (223,347) | (198,371) | (223,790)
Comprehensive income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income/(loss) attributable to Darling |  |  |  |  |  |  |  |  | (223,347) | (198,371) | (223,790)
Eliminations [Member] | Natural Gas Swap [Member] |  |  |  |  |  |  |  |  |  |  |
Total natural gas derivatives |  |  |  |  |  |  |  |  |  |  | 0
Eliminations [Member] | Corn Option [Member] |  |  |  |  |  |  |  |  |  |  |
Total natural gas derivatives |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 0

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