Statistical Measurement [Domain] Statistical Measurement [Domain] Award Timing Predetermined Award Timing Predetermined [Flag] Related Party Transaction [Axis] Related Party Transaction [Axis] Credit Agreement Dated March 4 2022 Credit Agreement Dated March 4 2022 [Member] Credit Agreement Dated March 4 2022 Entity File Number Entity File Number Paid-in Capital Additional Paid-in Capital [Member] Number of Canadian provinces in which restaurants are located Number Of Provinces In Which Entity Operates The number of provinces the entity operates in as of the balance sheet date. Credit Agreement Dated July 17 2023 Credit Agreement Dated July 17 2023 [Member] Credit Agreement Dated July 17 2023 Other Charges (Gains), net Other Income and Other Expense Disclosure [Text Block] Tabular List, Table Tabular List [Table Text Block] Leases [Abstract] Leases [Abstract] Recently Issued and Recently Adopted Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] Type of Restructuring [Domain] Type of Restructuring [Domain] Maximum potential future payments lease liability Guarantor Obligations, Maximum Exposure, Undiscounted Increase to maximum borrowing capacity Line Of Credit Facility, Increase to Maximum Borrowing Capacity Line Of Credit Facility, Increase to Maximum Borrowing Capacity Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Fed Funds Effective Rate Overnight Index Swap Rate Fed Funds Effective Rate Overnight Index Swap Rate [Member] Basic (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Trade accounts payable and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Revenue Revenue from Contract with Customer [Text Block] Other ​Charges (Gains), Net Other ​Nonrecurring ​Income (​Expense) [Member] Other ​Nonrecurring ​Income (​Expense) Adjustment to Compensation, Amount Adjustment to Compensation Amount Less: unamortized debt issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Number of non-operating locations Number of Non-Operating Locations Number of Non-Operating Locations Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense 2025 Dispositions 2025 Dispositions [Member] 2025 Dispositions Employee Stock Option Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Asset impairment Non-cash impairment Asset Impairment Charges Total stockholders' equity (deficit) Beginning balance Ending balance Equity, Attributable to Parent Measurement Frequency [Axis] Measurement Frequency [Axis] Team member severance Team Member Severance [Member] Team Member Severance Insider Trading Policies and Procedures [Line Items] Stock-based compensation expense Share-Based Payment Arrangement, Expense Common stock, shares authorized (in shares) Common Stock, Shares Authorized Current assets: Assets, Current [Abstract] Term Loan Term Loan [Member] Term Loan [Member] Movement in Deferred Revenue [Roll Forward] Movement in Deferred Revenue [Roll Forward] Total liabilities and stockholders' equity (deficit) Liabilities and Equity Recurring Fair Value, Recurring [Member] Liabilities and stockholders' equity (deficit): Liabilities and Equity [Abstract] Workforce Reduction Plan Workforce Reduction Plan [Member] Workforce Reduction Plan Cover [Abstract] Maximum Maximum [Member] General and Administrative Expense General and Administrative Expense [Member] Gain on sale of restaurant property Sale and Leaseback Transaction, Gain (Loss), Net Repayments of borrowings on term loan Repayments of Secured Debt Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Treasury Stock Treasury Stock, Common [Member] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Total borrowings Debt, Long-Term and Short-Term, Combined Amount Asset disposal and other, net Asset Disposal and Other Asset Disposal and Other Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Amortization of right of use assets Finance Lease, Right-of-Use Asset, Amortization Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Other non-current liabilities Other Liabilities, Noncurrent Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Proceeds from sale of property and equipment, and other Proceeds from sale of restaurant properties Proceeds from Sale of Property, Plant, and Equipment Accrued purchases of property, equipment, and intangible assets Increase (Decrease) in Construction Payables Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Total comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Disposal Group Name [Domain] Disposal Group Name [Domain] Name Measure Name Restructuring reserve Restructuring Reserve Letter of Credit Letter of Credit [Member] Current portion of operating lease liabilities Operating Lease, Liability, Current Interest on lease liabilities Finance Lease, Interest Expense Document Fiscal Period Focus (Q1,Q2,Q3,FY) Document Fiscal Period Focus Award Timing Method Award Timing Method [Text Block] Award Type [Axis] Award Type [Axis] Total assets Assets Cash Flows From Investing Activities: Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract] Trading Symbol Trading Symbol Issuance of restricted stock, shares exchanged for exercise and tax, and stock issued through employee stock purchase plan (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Entity Address, City or Town Entity Address, City or Town Schedule of Asset Impairment and Restaurant Closure Costs, Net Summary Of Asset Impairment and Restaurant Closure Costs, Net [Table Text Block] Summary Of Asset Impairment and Restaurant Closure Costs, Net Effect of exchange rate changes on cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Restricted Stock Units Restricted Stock Units (RSUs) [Member] Statement of Income Location, Balance [Domain] Statement of Income Location, Balance [Domain] Total severance and executive transition Severance Costs Other revenue Products And Services, Other [Member] Products And Services, Other [Member] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Emerging Growth Company Entity Emerging Growth Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Right of use assets obtained in exchange for operating lease obligations Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Finance lease cost: Lease, Cost [Abstract] 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] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Common stock, shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Plan Name [Axis] Plan Name [Axis] PEO PEO [Member] Schedule of Revenue Disaggregated by Type of Good or Service Disaggregation of Revenue [Table Text Block] Increase in accrual during period Loss Contingency Accrual, Period Increase (Decrease) Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Maximum offering price, terminated Sale Of Stock, Maximum Offering Price, Terminated Sale Of Stock, Maximum Offering Price, Terminated Retained Earnings (Deficit) Retained Earnings [Member] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Cash and cash equivalents, and restricted cash, beginning of period Cash and cash equivalents, and restricted cash, end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Income tax (benefit) expense Income Tax Expense (Benefit) Variable Interest Rates Variable interest rate Debt Instrument, Basis Spread on Variable Rate Sale of Stock [Domain] Sale of Stock [Domain] Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations [Member] Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Product and Service [Domain] Product and Service [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Other Income and Expenses [Abstract] Other Income and Expenses [Abstract] Cost of sales Cost, Direct Material Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Sale-leasebacks Sale-leasebacks [Member] Sale-leasebacks Labor Cost, Direct Labor All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Accrued liabilities and other Accrued Liabilities, Current Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Repayments of insurance premium financing Repayments Of Insurance Premium Financing Repayments Of Insurance Premium Financing Schedule of Unearned Revenue and Revenue Recognized That Were Included in Liability Balances at Beginning of Fiscal Year Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Franchisor Disclosure [Axis] Franchisor Disclosure [Axis] General and administrative (includes $1,664 and $2,589 of stock-based compensation) General and Administrative Expense Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net cash provided by (used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Total lease costs Lease, Cost Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Schedule of Lease Cost Lease, Cost [Table Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Equity Components [Axis] Equity Components [Axis] Unearned Royalty revenue Products And Services, Loyalty [Member] Products And Services, Loyalty [Member] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Number of reportable segments Number of Reportable Segments Number of locations with lease remeasurement Number of Locations, Lease Remeasurement Number of Locations, Lease Remeasurement Basis of Presentation and Recent Accounting Pronouncements Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Supplemental disclosure of cash flow information Supplemental Cash Flow Information [Abstract] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Gift card breakage Products And Services, Gift Card Breakage [Member] Products And Services, Gift Card Breakage [Member] Other Performance Measure, Amount Other Performance Measure, Amount Entity Address, State or Province Entity Address, State or Province Assets held for sale Disposal Group, Including Discontinued Operation, Assets, Noncurrent Total current liabilities Liabilities, Current Individual: Individual [Axis] Restricted cash Restricted Cash Loss Per Share Reconciliation [Abstract] Earnings Per Share Reconciliation [Abstract] Leases Lessee, Finance Leases [Text Block] Revenue recognized Customer, Liability, Revenue Recognized, Including Opening Balance Customer, Liability, Revenue Recognized, Including Opening Balance Paid-in capital Additional Paid in Capital, Common Stock Net cash provided by (used in) investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation 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] Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Operating lease assets, net Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Entity Interactive Data Current Entity Interactive Data Current Stock-Based Compensation Stock-based compensation Stock-Based Compensation [Member] Stock-Based Compensation Operating lease cost Operating Lease, Cost Cash Flows From Operating Activities: Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract] Plan Name [Domain] Plan Name [Domain] Revenue deferred Contract with Customer, Liability, Additions Contract with Customer, Liability, Additions Estimated litigation liability Estimated Litigation Liability Granted weighted average grant date fair value (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Granted, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Granted, Weighted Average Grant Date Fair Value Purchase obligation Purchase Obligation Segment Reporting Segment Reporting Disclosure [Text Block] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Extension term Debt Instrument, Extension Term Debt Instrument, Extension Term Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Franchisor Disclosure [Line Items] Franchisor Disclosure [Line Items] Purchases of property, equipment, and intangible assets Payments to Acquire Productive Assets Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization Other assets, net Other Assets, Noncurrent Entity Central Index Key Entity Central Index Key PEO Name PEO Name Restaurant operating costs (excluding depreciation and amortization shown separately below): Cost of Product and Service Sold [Abstract] Unearned gift card revenue Products And Services, Gift Card [Member] Products And Services, Gift Card [Member] Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Revolving credit facility Revolving Credit Facility [Member] Other comprehensive income (loss): Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Arrangement Duration Trading Arrangement Duration Unearned revenue Contract with Customer, Liability, Current Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Number of restaurants Number of Restaurants Non-operating location rent, restaurant closure costs, and other Non-Operating Locations, Rent and Other Closure Costs Non-Operating Locations, Rent and Other Closure Costs Assets: Assets [Abstract] Long-term debt Long-term debt Long-Term Debt, Excluding Current Maturities Credit Facility [Axis] Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Debt Instrument [Axis] Debt Instrument [Axis] Fair Value Measurements Fair Value Disclosures [Text Block] Credit Facility [Domain] Credit Facility [Domain] Stockholders' equity (deficit): Equity, Attributable to Parent [Abstract] 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] Number of states in which restaurants are located Number of States in which Entity Operates Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Schedule of Fiscal Year End Dates Fiscal Year End Dates [Table Text Block] Fiscal Year End Dates Accumulated Other Comprehensive Income (Loss), net of tax AOCI Attributable to Parent [Member] Debt instrument, interest rate, stated percentage Debt Instrument, Interest Rate, Stated Percentage Long-term portion of operating lease liabilities Operating Lease, Liability, Noncurrent Number of restaurants sold Number Of Restaurants Sold Number Of Restaurants Sold Fair Value as of Grant Date Award Grant Date Fair Value Entity Registrant Name Entity Registrant Name Schedule of Franchisor Disclosure [Table] Franchisor, Ownership [Table] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Schedule of Borrowings Schedule of Long-Term Debt Instruments [Table Text Block] Dilutive effect of stock options and awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Total costs and expenses Costs and Expenses Document Quarterly Report Document Quarterly Report Equity issuance costs Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs ATM Program ATM Program [Member] ATM Program Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted Number of operating segments Number of Operating Segments Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Total asset impairment and restaurant closure costs, net Asset Impairment Charges And Restaurant Closure Costs Asset Impairment Charges And Restaurant Closure Costs Credit facility aggregate cap decrease Line of Credit Facility, Increase (Decrease), Net Phantom unit awards (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 Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Restatement Determination Date: Restatement Determination Date [Axis] Issuance of restricted stock, shares exchanged for exercise and tax, and stock issued through employee stock purchase plan Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Non-PEO NEO Non-PEO NEO [Member] Letters of credit outstanding, amount Letters of Credit Outstanding, Amount Schedule of Severance and Executive Transition Restructuring and Related Costs [Table Text Block] Proceeds (uses) from other financing activities, net Proceeds from (Payment for) Other Financing Activity Sale of Stock [Axis] Sale of Stock [Axis] Name Trading Arrangement, Individual Name Award Type [Domain] Award Type [Domain] Equity Awards Adjustments Equity Awards Adjustments [Member] Other, net Other Noncash Income (Expense) Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Accounts receivable and other, net Increase (Decrease) in Accounts and Other Receivables Compensation Amount Outstanding Recovery Compensation Amount Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Litigation contingencies Litigation Settlement, Fee Expense Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Gift card revenue Contract with Customer, Liability, Revenue Recognized MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Name Awards Close in Time to MNPI Disclosures, Individual Name Restructuring Type [Axis] Restructuring Type [Axis] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Franchise revenue Franchise revenue Franchise [Member] Term loan Term Loan Term Loan Revenues: Revenues [Abstract] Non-cash stock compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Accumulated other comprehensive income (loss), net of tax Accumulated Other Comprehensive Income (Loss), Net of Tax Statement of Income Location, Balance [Axis] Statement of Income Location, Balance [Axis] Prior Credit Agreement Prior Credit Agreement [Member] Prior Credit Agreement Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Inventories Increase (Decrease) in Inventories Inventories Inventory, Net Minimum Minimum [Member] Franchised Units Franchised Units [Member] Company Selected Measure Name Company Selected Measure Name Borrowings Debt Disclosure [Text Block] Preferred stock, $0.001 par value: 3,000 shares authorized; no shares issued and outstanding as of April 19, 2026 and December 28, 2025 Preferred Stock, Value, Issued Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accounts payable Accounts Payable, Current Total finance lease cost Finance Lease, Cost Finance Lease, Cost Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] All Executive Categories All Executive Categories [Member] Other (gains) charges, net (includes $0 and $(225) of stock-based compensation) Other Nonrecurring (Income) Expense Common stock, $0.001 par value: 45,000 shares authorized; 22,050 shares issued; 18,252 and 18,009 shares outstanding as of April 19, 2026 and December 28, 2025 Common Stock, Value, Issued Lease assets, net Finance Lease, Right-of-Use Asset, after Accumulated Amortization Restructuring Plan [Domain] Restructuring Plan [Domain] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Franchisor Disclosure [Domain] Franchisor Disclosure [Domain] Diluted (in shares) Diluted weighted average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Commitments and contingencies (see Note 8.) Commitments and Contingencies Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Entity Small Business Entity Small Business Payments of stock issuance costs Payments of Stock Issuance Costs Other operating Other Cost and Expense, Operating Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Document Transition Report Document Transition Report Underlying Securities Award Underlying Securities Amount Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Asset impairment and restaurant closure costs, net Asset Impairment and Other Charges Asset Impairment and Other Charges Document Type Document Type Earnings (Loss) Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Product and Service [Axis] Product and Service [Axis] Variable lease cost Variable Lease, Cost Total revenues Total revenues Revenue from Contract with Customer, Excluding Assessed Tax All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Name Forgone Recovery, Individual Name Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] 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] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Restaurant revenue Food and Beverage [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Disposal Group Name [Axis] Disposal Group Name [Axis] Schedule of Other Charges (Gains), Net Summary Of Other Charges [Table Text Block] Summary of Other Charges - Nonrecurring or unusual (income) expense items Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Other revenue Product and Service, Gift Card and Other [Member] Product and Service, Gift Card and Other Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Other comprehensive income (loss), net of tax Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Current liabilities: Liabilities, Current [Abstract] Other operating assets and liabilities, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Revolving line of credit Long-Term Line of Credit Diluted (in dollars per share) Earnings Per Share, Diluted Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Title of 12(b) Security Title of 12(b) Security Carrying value of impaired assets prior to impairment Restaurant Assets, Carrying Value Before Impairment, Fair Value Disclosure Restaurant Assets, Carrying Value Before Impairment, Fair Value Disclosure Treasury stock, shares (in shares) Beginning balance (in shares) Ending balance (in shares) Treasury Stock, Common, Shares Income (loss) per share: Earnings Per Share [Abstract] Restructuring Plan [Axis] Restructuring Plan [Axis] Total other expenses, net Nonoperating Income (Expense) Unearned revenue Increase (Decrease) in Contract with Customer, Liability Executive severance Executive Severance [Member] Executive Severance Number of impaired locations Number Of Restaurants Impaired Number Of Restaurants Impaired Award Timing Disclosures [Line Items] Measurement Frequency [Domain] Measurement Frequency [Domain] Accrued payroll and payroll-related liabilities Employee-related Liabilities, Current Net income (loss) Net income (loss) Net Income (Loss) Attributable to Parent Expiration Date Trading Arrangement Expiration Date Net lease remeasurement (gain) loss Net Lease Remeasurement Gain (Loss) Net Lease Remeasurement Gain (Loss) Vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Property and equipment, net Property, Plant and Equipment, Net Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Adoption Date Trading Arrangement Adoption Date Alternate Base Rate Base Rate [Member] Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Schedule of Restructuring and Related Costs [Table] Restructuring Cost [Table] Entity Current Reporting Status Entity Current Reporting Status Non-cash other (gains) charges Non-Cash Other Income (Expense) Non-Cash Other Income (Expense) Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Cash Flows From Financing Activities: Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] Income (loss) from operations Operating Income (Loss) Line of credit Line of Credit [Member] Stock-based Compensation Awards Granted Compensation Related Costs, Policy [Policy Text Block] Retained earnings (accumulated deficit) Retained Earnings (Accumulated Deficit) Operating lease assets, net of liabilities Increase (Decrease) In Right Of Use Assets, Net Of Lease Liabilities Increase (Decrease) In Right Of Use Assets, Net Of Lease Liabilities Gain on sale of restaurant property Gain on sale of restaurant property Gain (Loss) on Disposition of Property Plant Equipment Gift card breakage Gift Card Breakage Gift Card Breakage Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] 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] Executive Category: Executive Category [Axis] Current Fiscal Year End Date Current Fiscal Year End Date 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] Other (gains) charges, net Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] 2024 Performance Incentive Plan Phantom Award Unit 2024 Performance Incentive Plan Phantom Award Unit [Member] 2024 Performance Incentive Plan Phantom Award Unit Variable Rate [Domain] Variable Rate [Domain] Unearned revenue Unearned Royalty revenue, beginning balance Unearned Royalty revenue, ending balance Contract with Customer, Liability Awards excluded due to anti-dilutive effect on diluted income (loss) per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Weighted average shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Treasury stock: 3,798 and 4,041 shares, at cost, as of April 19, 2026 and December 28, 2025 Treasury Stock, Common, Value Revolving line of credit unamortized debt issuance costs Debt Issuance Costs, Line of Credit Arrangements, Net Termination Date Trading Arrangement Termination Date Net cash provided by (used in) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Deferred compensation plan assets, fair value disclosure Deferred Compensation Plan Assets, Fair Value Disclosure Deferred Compensation Plan Assets, Fair Value Disclosure Impaired restaurant assets Fair Value, Impaired Restaurant Assets Fair Value, Impaired Restaurant Assets Basic (in shares) Basic weighted average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Selling Selling Expense Disposal Group Classification [Domain] Disposal Group Classification [Domain] Schedule of Computations for Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Related Party Transaction [Domain] Related Party Transaction [Domain] Subsequent Events [Abstract] Subsequent Events [Abstract] Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Occupancy Operating Lease, Expense Debt Disclosure [Abstract] Debt Disclosure [Abstract] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Amortization of debt issuance cost Amortization of Debt Issuance Costs Other (income) expense: Nonoperating Income (Expense) [Abstract] Entity Tax Identification Number Entity Tax Identification Number Costs and expenses: Costs and Expenses [Abstract] Quarterly principal percentage Term Loan, Quarterly Payment, Principal, Percentage Term Loan, Quarterly Payment, Principal, Percentage Net (repayments) borrowings on revolving credit facility Proceeds from (Repayments of) Lines of Credit Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares issued (in shares) Common Stock, Shares, Issued Interest expense Interest Expense, Nonoperating Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Subsequent Event Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Security Exchange Name Security Exchange Name Entity Operated Units Entity Operated Units [Member] Total liabilities Liabilities Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Phantom Share Units (PSUs) Phantom Share Units (PSUs) [Member] Phantom Performance Stock Units Phantom Performance Stock Units [Member] Phantom Performance Stock Units Statement [Line Items] Statement [Line Items] Variable Rate [Axis] Variable Rate [Axis] Credit Agreement Dated April 19 2026 Credit Agreement Dated April 19 2026 [Member] Credit Agreement Dated April 19 2026 Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Common Stock Common Stock [Member] Interest (income) and other, net Interest Income and Other, Net The amount of nonoperating interest income, net of the amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items. Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Net change 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