2.4.0.6 Html 123 239 1 false 42 0 false 5 false false R1.htm 0001000 - Document - Document and Entity Information Sheet http://www.dennys.com/role/DocumentAndEntityInformation Document and Entity Information true false R2.htm 1001000 - Statement - Condensed Consolidated Balance Sheets (Unaudited) Sheet http://www.dennys.com/role/CondensedConsolidatedBalanceSheetsUnaudited Condensed Consolidated Balance Sheets (Unaudited) false false R3.htm 1001501 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) Sheet http://www.dennys.com/role/CondensedConsolidatedBalanceSheetsUnauditedParenthetical Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) false false R4.htm 1002000 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) Sheet http://www.dennys.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited Condensed Consolidated Statements of Comprehensive Income (Unaudited) false false R5.htm 1003000 - Statement - Condensed Consolidated Statement of Shareholders' Equity (Unaudited) Sheet http://www.dennys.com/role/CondensedConsolidatedStatementOfShareholdersEquityUnaudited Condensed Consolidated Statement of Shareholders' Equity (Unaudited) false false R6.htm 1003501 - Statement - Condensed Consolidated Statement of Shareholders' Equity (Unaudited) (Parenthetical) Sheet http://www.dennys.com/role/CondensedConsolidatedStatementOfShareholdersEquityUnauditedParenthetical Condensed Consolidated Statement of Shareholders' Equity (Unaudited) (Parenthetical) false false R7.htm 1004000 - Statement - Consolidated Statements of Cash Flows (Unaudited) Sheet http://www.dennys.com/role/ConsolidatedStatementsOfCashFlowsUnaudited Consolidated Statements of Cash Flows (Unaudited) false false R8.htm 2101100 - Disclosure - Introduction and Basis of Presentation Sheet http://www.dennys.com/role/IntroductionAndBasisOfPresentation Introduction and Basis of Presentation false false R9.htm 2102100 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.dennys.com/role/SummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies false false R10.htm 2103100 - Disclosure - Receivables Sheet http://www.dennys.com/role/Receivables Receivables false false R11.htm 2104100 - Disclosure - Goodwill and Other Intangible Assets Sheet http://www.dennys.com/role/GoodwillAndOtherIntangibleAssets Goodwill and Other Intangible Assets false false R12.htm 2105100 - Disclosure - Operating (Gains), Losses and Other Charges, Net Sheet http://www.dennys.com/role/OperatingGainsLossesAndOtherChargesNet Operating (Gains), Losses and Other Charges, Net false false R13.htm 2106100 - Disclosure - Fair Value of Financial Instruments Sheet http://www.dennys.com/role/FairValueOfFinancialInstruments Fair Value of Financial Instruments false false R14.htm 2107100 - Disclosure - Long-Term Debt Sheet http://www.dennys.com/role/LongTermDebt Long-Term Debt false false R15.htm 2108100 - Disclosure - Defined Benefit Plans Sheet http://www.dennys.com/role/DefinedBenefitPlans Defined Benefit Plans false false R16.htm 2109100 - Disclosure - Share-Based Compensation Sheet http://www.dennys.com/role/ShareBasedCompensation Share-Based Compensation false false R17.htm 2110100 - Disclosure - Income Taxes Sheet http://www.dennys.com/role/IncomeTaxes Income Taxes false false R18.htm 2111100 - Disclosure - Net Income Per Share Sheet http://www.dennys.com/role/NetIncomePerShare Net Income Per Share false false R19.htm 2112100 - Disclosure - Supplemental Cash Flow Information Sheet http://www.dennys.com/role/SupplementalCashFlowInformation Supplemental Cash Flow Information false false R20.htm 2113100 - Disclosure - Share Repurchase Sheet http://www.dennys.com/role/ShareRepurchase Share Repurchase false false R21.htm 2114100 - Disclosure - Commitments and Contingencies Sheet http://www.dennys.com/role/CommitmentsAndContingencies Commitments and Contingencies false false R22.htm 2115100 - Disclosure - Subsequent Events Sheet http://www.dennys.com/role/SubsequentEvents Subsequent Events false false R23.htm 2202201 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.dennys.com/role/SummaryOfSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) false false R24.htm 2301301 - Disclosure - Introduction and Basis of Presentation (Tables) Sheet http://www.dennys.com/role/IntroductionAndBasisOfPresentationTables Introduction and Basis of Presentation (Tables) false false R25.htm 2303301 - Disclosure - Receivables (Tables) Sheet http://www.dennys.com/role/ReceivablesTables Receivables (Tables) false false R26.htm 2304301 - Disclosure - Goodwill and Other Intangible Assets (Tables) Sheet http://www.dennys.com/role/GoodwillAndOtherIntangibleAssetsTables Goodwill and Other Intangible Assets (Tables) false false R27.htm 2305301 - Disclosure - Operating (Gains), Losses and Other Charges, Net (Tables) Sheet http://www.dennys.com/role/OperatingGainsLossesAndOtherChargesNetTables Operating (Gains), Losses and Other Charges, Net (Tables) false false R28.htm 2306301 - Disclosure - Fair Value of Financial Instruments (Tables) Sheet http://www.dennys.com/role/FairValueOfFinancialInstrumentsTables Fair Value of Financial Instruments (Tables) false false R29.htm 2308301 - Disclosure - Defined Benefit Plans (Tables) Sheet http://www.dennys.com/role/DefinedBenefitPlansTables Defined Benefit Plans (Tables) false false R30.htm 2309301 - Disclosure - Share-Based Compensation (Tables) Sheet http://www.dennys.com/role/ShareBasedCompensationTables Share-Based Compensation (Tables) false false R31.htm 2311301 - Disclosure - Net Income Per Share (Tables) Sheet http://www.dennys.com/role/NetIncomePerShareTables Net Income Per Share (Tables) false false R32.htm 2312301 - Disclosure - Supplemental Cash Flow Information (Tables) Sheet http://www.dennys.com/role/SupplementalCashFlowInformationTables Supplemental Cash Flow Information (Tables) false false R33.htm 2401402 - Disclosure - Introduction and Basis of Presentation (Details) Sheet http://www.dennys.com/role/IntroductionAndBasisOfPresentationDetails Introduction and Basis of Presentation (Details) false false R34.htm 2403402 - Disclosure - Receivables (Details) Sheet http://www.dennys.com/role/ReceivablesDetails Receivables (Details) false false R35.htm 2404402 - Disclosure - Goodwill and Other Intangible Assets (Details) Sheet http://www.dennys.com/role/GoodwillAndOtherIntangibleAssetsDetails Goodwill and Other Intangible Assets (Details) false false R36.htm 2405402 - Disclosure - Operating (Gains), Losses and Other Charges, Net (Details) Sheet http://www.dennys.com/role/OperatingGainsLossesAndOtherChargesNetDetails Operating (Gains), Losses and Other Charges, Net (Details) false false R37.htm 2406402 - Disclosure - Fair Value of Financial Instruments (Details) Sheet http://www.dennys.com/role/FairValueOfFinancialInstrumentsDetails Fair Value of Financial Instruments (Details) false false R38.htm 2407401 - Disclosure - Long-Term Debt (Details) Sheet http://www.dennys.com/role/LongTermDebtDetails Long-Term Debt (Details) false false R39.htm 2408402 - Disclosure - Defined Benefit Plans (Details) Sheet http://www.dennys.com/role/DefinedBenefitPlansDetails Defined Benefit Plans (Details) false false R40.htm 2409402 - Disclosure - Share-Based Compensation (Details) Sheet http://www.dennys.com/role/ShareBasedCompensationDetails Share-Based Compensation (Details) false false R41.htm 2410401 - Disclosure - Income Taxes (Details) Sheet http://www.dennys.com/role/IncomeTaxesDetails Income Taxes (Details) false false R42.htm 2411402 - Disclosure - Net Income Per Share (Details) Sheet http://www.dennys.com/role/NetIncomePerShareDetails Net Income Per Share (Details) false false R43.htm 2412402 - Disclosure - Supplemental Cash Flow Information (Details) Sheet http://www.dennys.com/role/SupplementalCashFlowInformationDetails Supplemental Cash Flow Information (Details) false false R44.htm 2413401 - Disclosure - Share Repurchase (Details) Sheet http://www.dennys.com/role/ShareRepurchaseDetails Share Repurchase (Details) false false R45.htm 2415401 - Disclosure - Subsequent Events - Refinancing of Credit Facility (Details) Sheet http://www.dennys.com/role/SubsequentEventsRefinancingOfCreditFacilityDetails Subsequent Events - Refinancing of Credit Facility (Details) false false R46.htm 2415402 - Disclosure - Subsequent Events - Share Repurchase Authorization (Details) Sheet http://www.dennys.com/role/SubsequentEventsShareRepurchaseAuthorizationDetails Subsequent Events - Share Repurchase Authorization (Details) false false R47.htm 2415403 - Disclosure - Subsequent Events - Interest Rate Hedges (Details) Sheet http://www.dennys.com/role/SubsequentEventsInterestRateHedgesDetails Subsequent Events - Interest Rate Hedges (Details) false false All Reports Book All Reports Element us-gaap_GainsLossesOnExtinguishmentOfDebt had a mix of decimals attribute values: -5 -3. 'Monetary' elements on report '2405402 - Disclosure - Operating (Gains), Losses and Other Charges, Net (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2406402 - Disclosure - Fair Value of Financial Instruments (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2408402 - Disclosure - Defined Benefit Plans (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2409402 - Disclosure - Share-Based Compensation (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2410401 - Disclosure - Income Taxes (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2415401 - Disclosure - Subsequent Events - Refinancing of Credit Facility (Details)' had a mix of different decimal attribute values. Process Flow-Through: 1001000 - Statement - Condensed Consolidated Balance Sheets (Unaudited) Process Flow-Through: Removing column 'Mar. 28, 2012' Process Flow-Through: Removing column 'Dec. 28, 2011' Process Flow-Through: 1001501 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) Process Flow-Through: 1002000 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) Process Flow-Through: 1003501 - Statement - Condensed Consolidated Statement of Shareholders' Equity (Unaudited) (Parenthetical) Process Flow-Through: 1004000 - Statement - Consolidated Statements of Cash Flows (Unaudited) denn-20130327.xml denn-20130327.xsd denn-20130327_cal.xml denn-20130327_def.xml denn-20130327_lab.xml denn-20130327_pre.xml true true