Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Title of 12(b) Security Title of 12(b) Security Subsequent Events Subsequent Event [Member] Document Fiscal Year Focus Document Fiscal Year Focus Portillo’s Perks Portillo’s Perks [Member] Portillo’s Perks Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Segment Reporting [Abstract] Schedule of Aggregate Amortization Expense Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block] Schedule of Fair Value of Mutual Fund Investments and Deferred Compensation Obligations Fair Value, Assets Measured on Recurring Basis [Table Text Block] Common stock Common Stock, Value, Issued Employee withholding taxes related to 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expense Amortization Total long-term liabilities Liabilities, Noncurrent RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Property, Plant, and Equipment [Abstract] Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (in usd per share) Common Stock, Par or Stated Value Per Share Net Carrying Amount Intangible Asset, Excluding Goodwill, after Accumulated Amortization LONG-TERM LIABILITIES: Liabilities, Noncurrent [Abstract] Weighted average ownership percentage Noncontrolling Interest, Weighted Average Ownership Percentage by Noncontrolling Owners Noncontrolling Interest, Weighted Average Ownership Percentage by Noncontrolling Owners Basic (in shares) Weighted-average number of common shares outstanding-basic (in shares) Weighted Average Number of Shares Outstanding, Basic Schedule of Related Party Transactions Schedule of Related Party Transactions [Table Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Loss Contingencies [Line Items] Loss Contingencies [Line Items] Number of reportable segments Number of Reportable Segments Total current liabilities Liabilities, Current Annual amount for fifth year Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Five Work in progress Inventory, Work in Process, Net of Reserves Entity Address, City or Town Entity Address, City or Town Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing 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AND FINANCING ACTIVITIES: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Document Period End Date Document Period End Date NET CASH USED IN INVESTING ACTIVITIES Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding Aggregate principal amount Debt Instrument, Face Amount COST AND EXPENSES: Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Contributions from non-controlling interests Proceeds from Noncontrolling Interests Fiscal Year Fiscal Period, Policy [Policy Text Block] Entity Shell Company Entity Shell Company Class B Common Stock pre-IPO LLC Members Common Class B [Member] Short-term operating lease liabilities Operating Lease, Liability, Current Schedule of Property and Equipment, Net Property, Plant, and Equipment [Table Text Block] EARNINGS PER SHARE Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Net income per common share attributable to Portillo's Inc.: Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total liabilities Liabilities Trading Symbol Trading Symbol Geographical [Domain] Geographical [Domain] Indefinite-lived intangible assets Intangible Asset, Excluding Goodwill, Indefinite-Lived 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(C&O) C&O Chicago, L.L.C. (C&O) [Member] C&O Chicago, L.L.C. 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Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Short-term debt Less: Short-term debt Short-Term Debt Receivables from related parties Increase (Decrease) in Accounts Receivable, Related Parties Land and land improvements Land Improvements [Member] Revenue from Contract with Customer [Abstract] Dilutive share awards (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Other assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Award Timing Predetermined Award Timing Predetermined [Flag] Intangible Asset, Goodwill and Other [Abstract] Letters of credit Letters of Credit Outstanding, Amount Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Equity-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Level 1 Fair Value, Inputs, Level 1 [Member] TRA amounts paid Tax Receivable Agreement, Amount Paid Tax Receivable Agreement, Amount Paid Redemption of LLC Units (in shares) Stock Redeemed or Called During Period, Shares Effective income tax rate percent Effective Income Tax Rate Reconciliation, Percent Organization, Consolidation and Presentation of Financial Statements [Abstract] Grantee Status [Domain] Grantee Status [Domain] Disaggregation of Income Statement Expense, Caption [Line Items] Disaggregation of Income Statement Expense, Caption [Line Items] 2025 Revolver Facility 2025 Revolver Facility [Member] 2025 Revolver Facility Changes in operating assets and liabilities: Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract] NET INCOME Net income Net income Net (loss) income Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest All Executive Categories All Executive Categories [Member] Number of states Number of States in which Entity Operates Operating lease liabilities 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Arrangement Expiration Date Total assets Investments, Fair Value Disclosure Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Performance Stock Units Performance Stock Units [Member] Performance Stock Units Income Statement Location [Axis] Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Total stockholders' equity Beginning balance Ending balance Equity, Including Portion Attributable to Noncontrolling Interest Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Buildings and improvements Building and Building Improvements [Member] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Common stock, authorized (in shares) Common Stock, Shares Authorized Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Exercise Price Award Exercise Price CASH FLOWS FROM INVESTING ACTIVITIES: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Recurring Fair Value, Recurring [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Segment Reporting [Line Items] Segment Reporting [Line Items] Document Quarterly Report Document Quarterly Report Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Letter of credit fee percentage Line Of Credit Facility, Letter Of Credit Fee Percentage Line Of Credit Facility, Letter Of Credit Fee Percentage DEBT Debt Disclosure [Text Block] Payments of long-term debt Repayments of Long-Term Debt Remaining unamortized costs Debt Issuance Costs, Net Unamortized discount and debt issuance costs Unamortized discount and debt issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity method investment Equity Method Investments Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Term Loan Secured Debt [Member] Total restaurant operating expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Total stockholders' equity attributable to Portillo's Inc. 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Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Change Due to Net Income Attributable to Parent and Effects of Changes, Net Investment, Name [Axis] Investment, Name [Axis] Restaurant operating expenses: Operating Expenses [Abstract] Deferred tax assets Deferred Income Tax Assets, Net Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Finite-Lived Intangibles, Net Intangible Asset, Finite-Lived [Table Text Block] Adjusted leverage ratio Debt Instrument, Basis Spread on Variable Rate City Area Code City Area Code All Individuals All Individuals [Member] SUBSEQUENT EVENTS Subsequent Events [Text Block] Name Forgone Recovery, Individual Name Finished goods Inventory, Finished Goods, Net of Reserves Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Non-controlling interest adjustment Noncontrolling Interest, Interest Adjustment Noncontrolling Interest, Interest Adjustment Statement [Line Items] Statement [Line Items] TOTAL ASSETS Assets Entity [Domain] Entity [Domain] Preferred stock, issued (in shares) Preferred Stock, Shares Issued Schedule of Equity-Based Compensation Expense Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Proceeds from Employee Stock Purchase Plan purchases Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Excluding Option Exercised EQUITY-BASED COMPENSATION Share-Based Payment Arrangement [Text Block] Occupancy Occupancy, Net PEO PEO [Member] LLC Interests (in shares) Shares, Outstanding Total equity-based compensation expense Share-Based Payment Arrangement, Expense Transportation equipment Transportation Equipment [Member] Other long-term liabilities Other Liabilities, Noncurrent Goodwill Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Weighted average grant date fair value (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Revenue recognized from gift card liability balance at the beginning of the year Contract with Customer, Liability, Revenue Recognized Subsequent Event Type [Domain] Subsequent Event Type [Domain] Schedule of LLC Interest Ownership by Portillo's Inc. and Pre-IPO LLC Members Schedule of Other Ownership Interests [Table Text Block] Retained Earnings Retained Earnings [Member] Long-term operating lease liabilities Operating Lease, Liability, Noncurrent Revolver Facility Revolving Credit Facility Revolving Credit Facility [Member] Cash accounts Money Market Funds [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Total Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, 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Intangible Asset, Excluding Goodwill, before Accumulated Amortization REVENUE RECOGNITION Revenue from Contract with Customer [Text Block] Food, beverage and packaging costs Food, beverage and packaging costs Cost, Direct Material Construction-in-progress Construction in Progress [Member] Other Payment for (Proceeds from) Other Investing Activity Inventories Increase (Decrease) in Inventories Segment Reporting [Table] Segment Reporting [Table] Gross Carrying Amount Indefinite-Lived Intangible Assets, Gross (Excluding Goodwill) Indefinite-Lived Intangible Assets, Gross (Excluding Goodwill) Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Schedule of Equity Method Investments [Table] Equity Method Investment [Table] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] OPERATING INCOME Operating Income (Loss) Current Fiscal Year End Date Current Fiscal Year End Date Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Estimated restructuring charges Restructuring and Related Cost, Expected Cost Establishment of liabilities under Tax Receivable Agreement and related changes to deferred tax assets associated with increases in tax basis Adjustments to Additional Paid in Capital, Deferred Tax Receivable Agreement Adjustment Adjustments to Additional Paid in Capital, Deferred Tax Receivable Agreement Adjustment Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Proceeds from short-term debt, net Proceeds from (Repayments of) Short-Term Debt Activity under 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Agreement Liability Adjustment Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Segment Segment [Member] Segment INCOME BEFORE INCOME TAXES Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] COMMITMENTS AND CONTINGENCIES (NOTE 13) Commitments and Contingencies Intangible subject to amortization, gross Intangible Asset, Finite-Lived, before Accumulated Amortization Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Property and equipment, gross Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] 2030 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four Net income attributable to equity method investment Income (Loss) 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Cash, and Restricted Cash Equivalent, Continuing Operation Schedule of Finite-Lived Intangible Assets [Table] Intangible Asset, Finite-Lived [Table] Accounts payable Increase (Decrease) in Accounts Payable Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] DESCRIPTION OF BUSINESS Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Employee Share-Based Payment Arrangement, Employee [Member] Debt Instrument [Axis] Debt Instrument [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Subsequent Event [Table] Subsequent Event [Table] Ownership percentage Equity Method Investment, Ownership Percentage Equity-based compensation Share-Based Payment Arrangement, Noncash Expense 2028 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two Redemption of LLC Units Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Repurchase of Shares by Subsidiary Investment, Name [Domain] Investment, Name [Domain] Schedule of Inventories Schedule of Inventory, Current [Table Text Block] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Basic (in usd per share) Basic net income per share (in usd per share) Earnings Per Share, Basic Recipes Intellectual Property [Member] Deferred revenue Contract with Customer, Liability, Current Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Long-term debt, net of current portion Long-term debt, net Long-Term Debt, Excluding Current Maturities Award Type [Axis] Award Type [Axis] Payment of deferred financing costs Payments of Financing Costs Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts and tenant improvement receivables Accounts Receivable, after Allowance for Credit Loss, Current Retained earnings Retained Earnings (Accumulated Deficit) Product and Service [Axis] Product and Service [Axis] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Number of reporting units Goodwill, Reporting Unit, Number Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock LLC Units Common Stock [Member] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Revolver Facility Revolver Facility [Member] Revolver Facility Performance range Share-Based Compensation Arrangement by Share-Based Payment Award, Award Performance, Percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Award Performance, Percentage Noncontrolling Interest [Abstract] Estimated Amortization Intangible Asset, Finite-Lived, after Accumulated Amortization, Estimated Amortization Expense, Fiscal Year Maturity [Abstract] Equity Awards Adjustments Equity Awards Adjustments [Member] TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity Total Ownership Percentage Ownership Percentage Interest income Interest Income, Other Stock Options Share-Based Payment Arrangement, Option [Member] Non-controlling interest Equity, Attributable to Noncontrolling Interest Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Related Party [Domain] Related and Nonrelated Parties [Domain] Inventory Disclosure [Abstract] Tabular List, Table Tabular List [Table Text Block] Additional paid-in-capital Additional Paid in Capital 2031 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Five 2029 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three 2026 (excluding the two quarters ended June 28, 2026) Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year Other loss (income), net Other Operating Income (Expense), Net Pre-opening expenses Pre-Opening Costs Name Awards Close in Time to MNPI Disclosures, Individual Name Number of food production commissaries Number Of Food Production Commissaries Number Of Food Production Commissaries Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] General and administrative expenses General and Administrative Expense Long-Lived Asset, Class [Domain] Long-Lived Asset, Class [Domain] Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Property, Plant, and Equipment [Table] Property, Plant, and Equipment [Table] C&O C&O Chicago, LLC [Member] C&O Chicago, LLC Preferred stock, $0.01 par value per share, 10,000,000 shares authorized, none issued or outstanding Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Payments of Tax Receivable Agreement liability Payments Of Tax Receivable Agreement Liability Payments Of Tax Receivable Agreement Liability Class of Stock [Domain] Class of Stock [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Schedule of Effects of Changes in Ownership in Portillo's OpCo on the Company’s Equity Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table Text Block] Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Labor Cost, Direct Labor Name Measure Name INCOME TAXES Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Tax Receivable Agreement liability Tax Receivable Agreement Liability Tax Receivable Agreement Liability Debt Instrument [Line Items] Debt Instrument [Line Items] Other current assets Increase (Decrease) in Other Current Assets Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Additional Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Number of restaurants Number of Restaurants Consigned inventory Other Inventory, Net of Reserves Name Trading Arrangement, Individual Name Term Loan 2025 Term Loan [Member] 2025 Term Loan Raw materials Inventory, Raw Materials, Net of Reserves Company Selected Measure Amount Company Selected Measure Amount Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization Entity Address, Address Line Two Entity Address, Address Line Two Activity under equity-based compensation plans (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Revolver Facility 2023 Revolver Facility [Member] 2023 Revolver Facility CURRENT ASSETS: Assets, Current [Abstract] Wrongful Death And Survival Action Wrongful Death And Survival Action [Member] Wrongful Death And Survival Action Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Income tax expense Income Tax Expense (Benefit) Award Timing Method Award Timing Method [Text Block] Consolidation Consolidation, Policy [Policy Text Block] NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Accounts and tenant improvement receivables Accounts and Financing Receivable, after Allowance for Credit Loss, Current Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Other intangible assets, net Other Intangible Assets, Net NET INCOME ATTRIBUTABLE TO PORTILLO'S INC. Net income attributable to Portillo's Inc. Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Corporate Joint Venture Corporate Joint Venture [Member] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Proceeds from stock option exercises Proceeds from Stock Options Exercised Non-employee Directors Share-Based Payment Arrangement, Nonemployee [Member] Litigation settlement, amount awarded to other party Litigation Settlement, Amount Awarded to Other Party Annual amount for fourth year Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Four Schedule of Gift Card Liability Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation and Significant Accounting Policies [Text Block] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]