3.8.0.1 html 424 625 1 false 135 0 false 12 false false R1.htm 0001000 - Document - Document And Entity Information Sheet http://www.snyderslance.com/role/DocumentAndEntityInformation Document And Entity Information Cover 1 false false R2.htm 1002000 - Statement - Consolidated Statements Of Income Sheet http://www.snyderslance.com/role/ConsolidatedStatementsOfIncome Consolidated Statements Of Income Statements 2 false false R3.htm 1003000 - Statement - Consolidated Statements Of Comprehensive Income Sheet http://www.snyderslance.com/role/ConsolidatedStatementsOfComprehensiveIncome Consolidated Statements Of Comprehensive Income Statements 3 false false R4.htm 1003501 - Statement - Consolidated Statements Of Comprehensive Income (Parenthetical) Sheet http://www.snyderslance.com/role/ConsolidatedStatementsOfComprehensiveIncomeParenthetical Consolidated Statements Of Comprehensive Income (Parenthetical) Statements 4 false false R5.htm 1004000 - Statement - Consolidated Balance Sheets Sheet http://www.snyderslance.com/role/ConsolidatedBalanceSheets Consolidated Balance Sheets Statements 5 false false R6.htm 1004501 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://www.snyderslance.com/role/ConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 6 false false R7.htm 1005000 - Statement - Consolidated Statements Of Stockholders' Equity Sheet http://www.snyderslance.com/role/ConsolidatedStatementsOfStockholdersEquity Consolidated Statements Of Stockholders' Equity Statements 7 false false R8.htm 1005501 - Statement - Consolidated Statements Of Stockholders' Equity (Parenthetical) Sheet http://www.snyderslance.com/role/ConsolidatedStatementsOfStockholdersEquityParenthetical Consolidated Statements Of Stockholders' Equity (Parenthetical) Statements 8 false false R9.htm 1006000 - Statement - Consolidated Statements Of Cash Flows Sheet http://www.snyderslance.com/role/ConsolidatedStatementsOfCashFlows Consolidated Statements Of Cash Flows Statements 9 false false R10.htm 1006501 - Statement - Consolidated Statements Of Cash Flows (Parenthetical) Sheet http://www.snyderslance.com/role/ConsolidatedStatementsOfCashFlowsParenthetical Consolidated Statements Of Cash Flows (Parenthetical) Statements 10 false false R11.htm 2101100 - Disclosure - Operations and Summary of Significant Accounting Policies Sheet http://www.snyderslance.com/role/OperationsAndSummaryOfSignificantAccountingPolicies Operations and Summary of Significant Accounting Policies Notes 11 false false R12.htm 2102100 - Disclosure - Merger Agreement With Campbell Soup Company Sheet http://www.snyderslance.com/role/MergerAgreementWithCampbellSoupCompany Merger Agreement With Campbell Soup Company Notes 12 false false R13.htm 2103100 - Disclosure - New Accounting Standards Sheet http://www.snyderslance.com/role/NewAccountingStandards New Accounting Standards Notes 13 false false R14.htm 2104100 - Disclosure - Discontinued Operations Sheet http://www.snyderslance.com/role/DiscontinuedOperations Discontinued Operations Notes 14 false false R15.htm 2106100 - Disclosure - Business Acquisitions Sheet http://www.snyderslance.com/role/BusinessAcquisitions Business Acquisitions Notes 15 false false R16.htm 2107100 - Disclosure - Performance Transformation Plan Sheet http://www.snyderslance.com/role/PerformanceTransformationPlan Performance Transformation Plan Notes 16 false false R17.htm 2108100 - Disclosure - Earnings Per Share Sheet http://www.snyderslance.com/role/EarningsPerShare Earnings Per Share Notes 17 false false R18.htm 2109100 - Disclosure - Stock-Based Compensation Sheet http://www.snyderslance.com/role/StockBasedCompensation Stock-Based Compensation Notes 18 false false R19.htm 2110100 - Disclosure - Inventories Sheet http://www.snyderslance.com/role/Inventories Inventories Notes 19 false false R20.htm 2111100 - Disclosure - Fixed Assets Sheet http://www.snyderslance.com/role/FixedAssets Fixed Assets Notes 20 false false R21.htm 2112100 - Disclosure - Goodwill And Other Intangible Assets Sheet http://www.snyderslance.com/role/GoodwillAndOtherIntangibleAssets Goodwill And Other Intangible Assets Notes 21 false false R22.htm 2113100 - Disclosure - Long-Term Debt Sheet http://www.snyderslance.com/role/LongTermDebt Long-Term Debt Notes 22 false false R23.htm 2114100 - Disclosure - Income Taxes Sheet http://www.snyderslance.com/role/IncomeTaxes Income Taxes Notes 23 false false R24.htm 2115100 - Disclosure - Fair Value Measurements Sheet http://www.snyderslance.com/role/FairValueMeasurements Fair Value Measurements Notes 24 false false R25.htm 2116100 - Disclosure - Derivative Instruments Sheet http://www.snyderslance.com/role/DerivativeInstruments Derivative Instruments Notes 25 false false R26.htm 2117100 - Disclosure - Postretirement Benefit Plans Sheet http://www.snyderslance.com/role/PostretirementBenefitPlans Postretirement Benefit Plans Notes 26 false false R27.htm 2118100 - Disclosure - Commitments And Contingencies Sheet http://www.snyderslance.com/role/CommitmentsAndContingencies Commitments And Contingencies Notes 27 false false R28.htm 2119100 - Disclosure - Related Party Transactions Sheet http://www.snyderslance.com/role/RelatedPartyTransactions Related Party Transactions Notes 28 false false R29.htm 2120100 - Disclosure - Other Comprehensive Income Sheet http://www.snyderslance.com/role/OtherComprehensiveIncome Other Comprehensive Income Notes 29 false false R30.htm 2121100 - Disclosure - Segment Reporting Sheet http://www.snyderslance.com/role/SegmentReporting Segment Reporting Notes 30 false false R31.htm 2122100 - Disclosure - Significant Customers Sheet http://www.snyderslance.com/role/SignificantCustomers Significant Customers Notes 31 false false R32.htm 2123100 - Disclosure - Quarterly Financial Information (Unaudited) Sheet http://www.snyderslance.com/role/QuarterlyFinancialInformationUnaudited Quarterly Financial Information (Unaudited) Notes 32 false false R33.htm 2124100 - Disclosure - Subsequent Events Sheet http://www.snyderslance.com/role/SubsequentEvents Subsequent Events Notes 33 false false R34.htm 2125100 - Schedule - Valuation and Qualifying Accounts Sheet http://www.snyderslance.com/role/ValuationAndQualifyingAccounts Valuation and Qualifying Accounts Uncategorized 34 false false R35.htm 2201201 - Disclosure - Operations and Summary of Significant Accounting Policies (Policies) Sheet http://www.snyderslance.com/role/OperationsAndSummaryOfSignificantAccountingPoliciesPolicies Operations and Summary of Significant Accounting Policies (Policies) Uncategorized 35 false false R36.htm 2301302 - Disclosure - Operations and Summary of Significant Accounting Policies (Tables) Sheet http://www.snyderslance.com/role/OperationsAndSummaryOfSignificantAccountingPoliciesTables Operations and Summary of Significant Accounting Policies (Tables) Uncategorized 36 false false R37.htm 2303301 - Disclosure - New Accounting Standards (Tables) Sheet http://www.snyderslance.com/role/NewAccountingStandardsTables New Accounting Standards (Tables) Uncategorized 37 false false R38.htm 2304301 - Disclosure - Discontinued Operations (Tables) Sheet http://www.snyderslance.com/role/DiscontinuedOperationsTables Discontinued Operations (Tables) Uncategorized 38 false false R39.htm 2306301 - Disclosure - Business Acquisitions (Tables) Sheet http://www.snyderslance.com/role/BusinessAcquisitionsTables Business Acquisitions (Tables) Uncategorized 39 false false R40.htm 2307301 - Disclosure - Performance Transformation Plan (Tables) Sheet http://www.snyderslance.com/role/PerformanceTransformationPlanTables Performance Transformation Plan (Tables) Uncategorized 40 false false R41.htm 2308301 - Disclosure - Earnings Per Share (Table) Sheet http://www.snyderslance.com/role/EarningsPerShareTable Earnings Per Share (Table) Uncategorized 41 false false R42.htm 2309301 - Disclosure - Stock-Based Compensation (Tables) Sheet http://www.snyderslance.com/role/StockBasedCompensationTables Stock-Based Compensation (Tables) Uncategorized 42 false false R43.htm 2310301 - Disclosure - Inventories (Tables) Sheet http://www.snyderslance.com/role/InventoriesTables Inventories (Tables) Uncategorized 43 false false R44.htm 2311301 - Disclosure - Fixed Assets (Tables) Sheet http://www.snyderslance.com/role/FixedAssetsTables Fixed Assets (Tables) Uncategorized 44 false false R45.htm 2312301 - Disclosure - Goodwill And Other Intangible Assets (Tables) Sheet http://www.snyderslance.com/role/GoodwillAndOtherIntangibleAssetsTables Goodwill And Other Intangible Assets (Tables) Uncategorized 45 false false R46.htm 2313301 - Disclosure - Long-Term Debt (Tables) Sheet http://www.snyderslance.com/role/LongTermDebtTables Long-Term Debt (Tables) Uncategorized 46 false false R47.htm 2314301 - Disclosure - Income Taxes (Tables) Sheet http://www.snyderslance.com/role/IncomeTaxesTables Income Taxes (Tables) Uncategorized 47 false false R48.htm 2315301 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.snyderslance.com/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Uncategorized 48 false false R49.htm 2316301 - Disclosure - Derivative Instruments (Tables) Sheet http://www.snyderslance.com/role/DerivativeInstrumentsTables Derivative Instruments (Tables) Uncategorized 49 false false R50.htm 2318301 - Disclosure - Commitments And Contingencies (Tables) Sheet http://www.snyderslance.com/role/CommitmentsAndContingenciesTables Commitments And Contingencies (Tables) Uncategorized 50 false false R51.htm 2320301 - Disclosure - Other Comprehensive Income (Tables) Sheet http://www.snyderslance.com/role/OtherComprehensiveIncomeTables Other Comprehensive Income (Tables) Uncategorized 51 false false R52.htm 2321301 - Disclosure - Segment Reporting (Tables) Sheet http://www.snyderslance.com/role/SegmentReportingTables Segment Reporting (Tables) Uncategorized 52 false false R53.htm 2323301 - Disclosure - Quarterly Financial Information (Unaudited) (Tables) Sheet http://www.snyderslance.com/role/QuarterlyFinancialInformationUnauditedTables Quarterly Financial Information (Unaudited) (Tables) Uncategorized 53 false false R54.htm 2401403 - Disclosure - Operations and Summary of Significant Accounting Policies (Estimated Useful Lives Of Long-Term Depreciable Assets) (Details) Sheet http://www.snyderslance.com/role/OperationsAndSummaryOfSignificantAccountingPoliciesEstimatedUsefulLivesOfLongTermDepreciableAssetsDetails Operations and Summary of Significant Accounting Policies (Estimated Useful Lives Of Long-Term Depreciable Assets) (Details) Uncategorized 54 false false R55.htm 2401404 - Disclosure - Operations and Summary of Significant Accounting Policies (Narrative) (Details) Sheet http://www.snyderslance.com/role/OperationsAndSummaryOfSignificantAccountingPoliciesNarrativeDetails Operations and Summary of Significant Accounting Policies (Narrative) (Details) Uncategorized 55 false false R56.htm 2402401 - Disclosure - Merger Agreement With Campbell Soup Company (Details) Sheet http://www.snyderslance.com/role/MergerAgreementWithCampbellSoupCompanyDetails Merger Agreement With Campbell Soup Company (Details) Uncategorized 56 false false R57.htm 2403402 - Disclosure - New Accounting Standards (Schedule of Cash Restrictions) (Details) Sheet http://www.snyderslance.com/role/NewAccountingStandardsScheduleOfCashRestrictionsDetails New Accounting Standards (Schedule of Cash Restrictions) (Details) Uncategorized 57 false false R58.htm 2403403 - Disclosure - New Accounting Standards (Error Corrections and Prior Period Adjustments) (Details) Sheet http://www.snyderslance.com/role/NewAccountingStandardsErrorCorrectionsAndPriorPeriodAdjustmentsDetails New Accounting Standards (Error Corrections and Prior Period Adjustments) (Details) Uncategorized 58 false false R59.htm 2403404 - Disclosure - New Accounting Standards (Narrative) (Details) Sheet http://www.snyderslance.com/role/NewAccountingStandardsNarrativeDetails New Accounting Standards (Narrative) (Details) Uncategorized 59 false false R60.htm 2404402 - Disclosure - Discontinued Operations (Narrative) (Details) Sheet http://www.snyderslance.com/role/DiscontinuedOperationsNarrativeDetails Discontinued Operations (Narrative) (Details) Uncategorized 60 false false R61.htm 2404403 - Disclosure - Discontinued Operations (Income Statement) (Details) Sheet http://www.snyderslance.com/role/DiscontinuedOperationsIncomeStatementDetails Discontinued Operations (Income Statement) (Details) Uncategorized 61 false false R62.htm 2404404 - Disclosure - Discontinued Operations (Loss/Gain on Sale calculation) (Details) Sheet http://www.snyderslance.com/role/DiscontinuedOperationsLossGainOnSaleCalculationDetails Discontinued Operations (Loss/Gain on Sale calculation) (Details) Uncategorized 62 false false R63.htm 2404405 - Disclosure - Discontinued Operations (Cash Flow disclosures) (Details) Sheet http://www.snyderslance.com/role/DiscontinuedOperationsCashFlowDisclosuresDetails Discontinued Operations (Cash Flow disclosures) (Details) Uncategorized 63 false false R64.htm 2406402 - Disclosure - Business Acquisitions (Narrative) (Details) Sheet http://www.snyderslance.com/role/BusinessAcquisitionsNarrativeDetails Business Acquisitions (Narrative) (Details) Uncategorized 64 false false R65.htm 2406403 - Disclosure - Business Acquisitions (Purchase Price Allocation) (Details) Sheet http://www.snyderslance.com/role/BusinessAcquisitionsPurchasePriceAllocationDetails Business Acquisitions (Purchase Price Allocation) (Details) Uncategorized 65 false false R66.htm 2406404 - Disclosure - Business Acquisitions (Consideration Transferred) (Details) Sheet http://www.snyderslance.com/role/BusinessAcquisitionsConsiderationTransferredDetails Business Acquisitions (Consideration Transferred) (Details) Uncategorized 66 false false R67.htm 2406405 - Disclosure - Business Acquisitions (Stock Option Assumptions) (Details) Sheet http://www.snyderslance.com/role/BusinessAcquisitionsStockOptionAssumptionsDetails Business Acquisitions (Stock Option Assumptions) (Details) Uncategorized 67 false false R68.htm 2406406 - Disclosure - Business Acquisitions (Proforma Information) (Details) Sheet http://www.snyderslance.com/role/BusinessAcquisitionsProformaInformationDetails Business Acquisitions (Proforma Information) (Details) Uncategorized 68 false false R69.htm 2407402 - Disclosure - Performance Transformation Plan (Details) Sheet http://www.snyderslance.com/role/PerformanceTransformationPlanDetails Performance Transformation Plan (Details) Uncategorized 69 false false R70.htm 2408402 - Disclosure - Earnings Per Share (Schedule of Earnings Per Share, Basic or Diluted) (Details) Sheet http://www.snyderslance.com/role/EarningsPerShareScheduleOfEarningsPerShareBasicOrDilutedDetails Earnings Per Share (Schedule of Earnings Per Share, Basic or Diluted) (Details) Uncategorized 70 false false R71.htm 2408403 - Disclosure - Earnings Per Share (Narrative) (Details) Sheet http://www.snyderslance.com/role/EarningsPerShareNarrativeDetails Earnings Per Share (Narrative) (Details) Uncategorized 71 false false R72.htm 2409402 - Disclosure - Stock-Based Compensation (Narrative) (Details) Sheet http://www.snyderslance.com/role/StockBasedCompensationNarrativeDetails Stock-Based Compensation (Narrative) (Details) Uncategorized 72 false false R73.htm 2409403 - Disclosure - Stock-Based Compensation (Valuation Assumptions) (Details) Sheet http://www.snyderslance.com/role/StockBasedCompensationValuationAssumptionsDetails Stock-Based Compensation (Valuation Assumptions) (Details) Uncategorized 73 false false R74.htm 2409404 - Disclosure - Stock-Based Compensation (Stock Options Activity) (Details) Sheet http://www.snyderslance.com/role/StockBasedCompensationStockOptionsActivityDetails Stock-Based Compensation (Stock Options Activity) (Details) Uncategorized 74 false false R75.htm 2409405 - Disclosure - Stock-Based Compensation (Changes in Non-Option Awards) (Details) Sheet http://www.snyderslance.com/role/StockBasedCompensationChangesInNonOptionAwardsDetails Stock-Based Compensation (Changes in Non-Option Awards) (Details) Uncategorized 75 false false R76.htm 2410402 - Disclosure - Inventories (Components Of Inventory) (Details) Sheet http://www.snyderslance.com/role/InventoriesComponentsOfInventoryDetails Inventories (Components Of Inventory) (Details) Uncategorized 76 false false R77.htm 2411402 - Disclosure - Fixed Assets (Schedule Of Fixed Assets) (Details) Sheet http://www.snyderslance.com/role/FixedAssetsScheduleOfFixedAssetsDetails Fixed Assets (Schedule Of Fixed Assets) (Details) Uncategorized 77 false false R78.htm 2411403 - Disclosure - Fixed Assets (Narrative) (Details) Sheet http://www.snyderslance.com/role/FixedAssetsNarrativeDetails Fixed Assets (Narrative) (Details) Uncategorized 78 false false R79.htm 2412402 - Disclosure - Goodwill And Other Intangible Assets (Changes In Carrying Amount Of Goodwill) (Details) Sheet http://www.snyderslance.com/role/GoodwillAndOtherIntangibleAssetsChangesInCarryingAmountOfGoodwillDetails Goodwill And Other Intangible Assets (Changes In Carrying Amount Of Goodwill) (Details) Uncategorized 79 false false R80.htm 2412403 - Disclosure - Goodwill And Other Intangible Assets (Narrative) (Details) Sheet http://www.snyderslance.com/role/GoodwillAndOtherIntangibleAssetsNarrativeDetails Goodwill And Other Intangible Assets (Narrative) (Details) Uncategorized 80 false false R81.htm 2412404 - Disclosure - Goodwill And Other Intangible Assets (Acquired Intangible Assets) (Details) Sheet http://www.snyderslance.com/role/GoodwillAndOtherIntangibleAssetsAcquiredIntangibleAssetsDetails Goodwill And Other Intangible Assets (Acquired Intangible Assets) (Details) Uncategorized 81 false false R82.htm 2412405 - Disclosure - Goodwill And Other Intangible Assets (Changes In Carrying Value Of Routes) (Details) Sheet http://www.snyderslance.com/role/GoodwillAndOtherIntangibleAssetsChangesInCarryingValueOfRoutesDetails Goodwill And Other Intangible Assets (Changes In Carrying Value Of Routes) (Details) Uncategorized 82 false false R83.htm 2412406 - Disclosure - Goodwill And Other Intangible Assets (Changes in Carrying Value of Routes Held For Sale) (Details) Sheet http://www.snyderslance.com/role/GoodwillAndOtherIntangibleAssetsChangesInCarryingValueOfRoutesHeldForSaleDetails Goodwill And Other Intangible Assets (Changes in Carrying Value of Routes Held For Sale) (Details) Uncategorized 83 false false R84.htm 2413402 - Disclosure - Long-Term Debt (Schedule Of Debt Outstanding) (Details) Sheet http://www.snyderslance.com/role/LongTermDebtScheduleOfDebtOutstandingDetails Long-Term Debt (Schedule Of Debt Outstanding) (Details) Uncategorized 84 false false R85.htm 2413403 - Disclosure - Long-Term Debt (Annual Maturities Of Long-Term Debt) (Details) Sheet http://www.snyderslance.com/role/LongTermDebtAnnualMaturitiesOfLongTermDebtDetails Long-Term Debt (Annual Maturities Of Long-Term Debt) (Details) Uncategorized 85 false false R86.htm 2413404 - Disclosure - Long-Term Debt (Narrative) (Details) Sheet http://www.snyderslance.com/role/LongTermDebtNarrativeDetails Long-Term Debt (Narrative) (Details) Uncategorized 86 false false R87.htm 2413405 - Disclosure - Long-Term Debt (Schedule of Extinguished Debt) (Details) Sheet http://www.snyderslance.com/role/LongTermDebtScheduleOfExtinguishedDebtDetails Long-Term Debt (Schedule of Extinguished Debt) (Details) Uncategorized 87 false false R88.htm 2413406 - Disclosure - Long-Term Debt (EBITDA Covenant Ratios) (Details) Sheet http://www.snyderslance.com/role/LongTermDebtEbitdaCovenantRatiosDetails Long-Term Debt (EBITDA Covenant Ratios) (Details) Uncategorized 88 false false R89.htm 2414402 - Disclosure - Income Taxes (Narrative) (Details) Sheet http://www.snyderslance.com/role/IncomeTaxesNarrativeDetails Income Taxes (Narrative) (Details) Uncategorized 89 false false R90.htm 2414403 - Disclosure - Income Taxes (Components of Income Tax Expense) (Details) Sheet http://www.snyderslance.com/role/IncomeTaxesComponentsOfIncomeTaxExpenseDetails Income Taxes (Components of Income Tax Expense) (Details) Uncategorized 90 false false R91.htm 2414404 - Disclosure - Income Taxes (Reconciliations Of The Federal Income Tax Rate) (Details) Sheet http://www.snyderslance.com/role/IncomeTaxesReconciliationsOfFederalIncomeTaxRateDetails Income Taxes (Reconciliations Of The Federal Income Tax Rate) (Details) Uncategorized 91 false false R92.htm 2414405 - Disclosure - Income Taxes (Significant Portions Of The Deferred Tax Assets And Deferred Tax Liabilities) (Details) Sheet http://www.snyderslance.com/role/IncomeTaxesSignificantPortionsOfDeferredTaxAssetsAndDeferredTaxLiabilitiesDetails Income Taxes (Significant Portions Of The Deferred Tax Assets And Deferred Tax Liabilities) (Details) Uncategorized 92 false false R93.htm 2414406 - Disclosure - Income Taxes (Schedule Of Unrecognized Tax Benefits) (Details) Sheet http://www.snyderslance.com/role/IncomeTaxesScheduleOfUnrecognizedTaxBenefitsDetails Income Taxes (Schedule Of Unrecognized Tax Benefits) (Details) Uncategorized 93 false false R94.htm 2415402 - Disclosure - Fair Value Measurements (Details) Sheet http://www.snyderslance.com/role/FairValueMeasurementsDetails Fair Value Measurements (Details) Uncategorized 94 false false R95.htm 2416402 - Disclosure - Derivative Instruments (Level 2 Inputs) (Details) Sheet http://www.snyderslance.com/role/DerivativeInstrumentsLevel2InputsDetails Derivative Instruments (Level 2 Inputs) (Details) Uncategorized 95 false false R96.htm 2416403 - Disclosure - Derivative Instruments (Changes Other Comprehensive Income) (Details) Sheet http://www.snyderslance.com/role/DerivativeInstrumentsChangesOtherComprehensiveIncomeDetails Derivative Instruments (Changes Other Comprehensive Income) (Details) Uncategorized 96 false false R97.htm 2416404 - Disclosure - Derivative Instruments (Narrative) (Details) Sheet http://www.snyderslance.com/role/DerivativeInstrumentsNarrativeDetails Derivative Instruments (Narrative) (Details) Uncategorized 97 false false R98.htm 2417401 - Disclosure - Postretirement Benefit Plans (Details) Sheet http://www.snyderslance.com/role/PostretirementBenefitPlansDetails Postretirement Benefit Plans (Details) Uncategorized 98 false false R99.htm 2418402 - Disclosure - Commitments And Contingencies (Future Minimum Lease Commitments For Operating Leases) (Details) Sheet http://www.snyderslance.com/role/CommitmentsAndContingenciesFutureMinimumLeaseCommitmentsForOperatingLeasesDetails Commitments And Contingencies (Future Minimum Lease Commitments For Operating Leases) (Details) Uncategorized 99 false false R100.htm 2418403 - Disclosure - Commitments And Contingencies (Future Minimum Lease Payments for Capital Leases) (Details) Sheet http://www.snyderslance.com/role/CommitmentsAndContingenciesFutureMinimumLeasePaymentsForCapitalLeasesDetails Commitments And Contingencies (Future Minimum Lease Payments for Capital Leases) (Details) Uncategorized 100 false false R101.htm 2418404 - Disclosure - Commitments And Contingencies (Contractual Obligations) (Details) Sheet http://www.snyderslance.com/role/CommitmentsAndContingenciesContractualObligationsDetails Commitments And Contingencies (Contractual Obligations) (Details) Uncategorized 101 false false R102.htm 2418405 - Disclosure - Commitments And Contingencies (Guarantees) (Details) Sheet http://www.snyderslance.com/role/CommitmentsAndContingenciesGuaranteesDetails Commitments And Contingencies (Guarantees) (Details) Uncategorized 102 false false R103.htm 2418406 - Disclosure - Commitments And Contingencies (Legal Matters) (Details) Sheet http://www.snyderslance.com/role/CommitmentsAndContingenciesLegalMattersDetails Commitments And Contingencies (Legal Matters) (Details) Uncategorized 103 false false R104.htm 2419401 - Disclosure - Related Party Transactions (Details) Sheet http://www.snyderslance.com/role/RelatedPartyTransactionsDetails Related Party Transactions (Details) Uncategorized 104 false false R105.htm 2420402 - Disclosure - Other Comprehensive Income (Reclassifications out of AOCI) (Details) Sheet http://www.snyderslance.com/role/OtherComprehensiveIncomeReclassificationsOutOfAociDetails Other Comprehensive Income (Reclassifications out of AOCI) (Details) Uncategorized 105 false false R106.htm 2420403 - Disclosure - Other Comprehensive Income (Components of AOCI) (Details) Sheet http://www.snyderslance.com/role/OtherComprehensiveIncomeComponentsOfAociDetails Other Comprehensive Income (Components of AOCI) (Details) Uncategorized 106 false false R107.htm 2421402 - Disclosure - Segment Reporting (Details) Sheet http://www.snyderslance.com/role/SegmentReportingDetails Segment Reporting (Details) Uncategorized 107 false false R108.htm 2422401 - Disclosure - Significant Customers (Details) Sheet http://www.snyderslance.com/role/SignificantCustomersDetails Significant Customers (Details) Uncategorized 108 false false R109.htm 2423402 - Disclosure - Quarterly Financial Information (Unaudited) (Details) Sheet http://www.snyderslance.com/role/QuarterlyFinancialInformationUnauditedDetails Quarterly Financial Information (Unaudited) (Details) Uncategorized 109 false false R110.htm 2424401 - Disclosure - Subsequent Events (Details) Sheet http://www.snyderslance.com/role/SubsequentEventsDetails Subsequent Events (Details) Uncategorized 110 false false R111.htm 2425401 - Schedule - Valuation And Qualifying Accounts (Details) Sheet http://www.snyderslance.com/role/ValuationAndQualifyingAccountsDetails Valuation And Qualifying Accounts (Details) Uncategorized 111 false false All Reports Book All Reports lnce-20171230.xml lnce-20171230.xsd lnce-20171230_cal.xml lnce-20171230_def.xml lnce-20171230_lab.xml lnce-20171230_pre.xml http://xbrl.sec.gov/dei/2014-01-31 http://xbrl.sec.gov/invest/2013-01-31 http://xbrl.sec.gov/country/2017-01-31 http://fasb.org/us-gaap/2017-01-31 true true