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QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) Narrative (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 5 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 29, 2013 | Dec. 29, 2013 | Sep. 29, 2013 | Sep. 26, 2013 | Dec. 28, 2014
WH Group | Merger Related Costs [Member] |  |  |  |  |
Merger related costs | $ 23.9us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = sfd_WHGroupMember / us-gaap_IncomeStatementLocationAxis = sfd_MergerRelatedCostsMember | $ 23.9us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = sfd_WHGroupMember / us-gaap_IncomeStatementLocationAxis = sfd_MergerRelatedCostsMember | $ 18.0us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = sfd_WHGroupMember / us-gaap_IncomeStatementLocationAxis = sfd_MergerRelatedCostsMember | $ 18.0us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = sfd_WHGroupMember / us-gaap_IncomeStatementLocationAxis = sfd_MergerRelatedCostsMember |
Successor |  |  |  |  |
Merger related costs |  | 23.9us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember |  |  | 0us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Impact of inventory fair value step-up on cost of sales |  |  |  |  | 0sfd_Impactofinventoryfairvaluestepuponcostofsales / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Successor | WH Group | Cost of Sales [Member] |  |  |  |  |
Impact of inventory fair value step-up on cost of sales |  | $ 45.4sfd_Impactofinventoryfairvaluestepuponcostofsales / us-gaap_BusinessAcquisitionAxis = sfd_WHGroupMember / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember |  |  |

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- Definition Impact of inventory fair value step-up on cost of sales + References No definition available. + Details
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- 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
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