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Subsidiary, Ownership Percentage, Noncontrolling Owner PEO Name PEO Name Common stock, authorized (in shares) Common Unit, Authorized Beginning balance Ending balance Contract with Customer, Liability TRA liability Tax Receivable Agreement Liability, Noncurrent Tax Receivable Agreement Liability, Noncurrent Ownership % Noncontrolling Interest, Percentage Of Ownership [Abstract] Noncontrolling Interest, Percentage Of Ownership Repayments of debt Repayments of Secured Debt Assumption of contingent consideration liability by Jersey Mike's HoldCo, LLC in connection with the Reorganization Transactions Members' Equity, Assumption Of Contingent Consideration Liability, Reorganization Transactions Members' Equity, Assumption Of Contingent Consideration Liability, Reorganization Transactions Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Lease-related exit costs Business Exit Costs Legal Entity [Axis] Legal Entity [Axis] Cash, cash equivalents, and restricted cash at beginning of the period Cash, cash equivalents, and restricted cash at end of the period Total cash, cash equivalents, and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] 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] Debt Instrument [Axis] Debt Instrument [Axis] Subsequent Event [Table] Subsequent Event [Table] Acquisition of franchised stores Payments to Acquire Businesses, Gross Equity-based compensation expense Share-Based Payment Arrangement, Noncash Expense 2028 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two Classes of interests Number Of Classes Of Ownership Interests Number Of Classes Of Ownership Interests Company-owned stores expenses Company Owned Stores Expense Company Owned Stores Expense Disposal Group Name [Axis] Disposal Group Name [Axis] Employee Stock Employee Stock [Member] Total payments Related Party Transaction, Amounts of Transaction 2027 Long-Term Debt, Maturity, Year One Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Basic (in dollars per share) Basic loss per share of Class A common stock (in dollars per share) Earnings Per Share, Basic Less: current portion 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 Total long-term debt, net Long-Term Debt, Excluding Current Maturities Award Type [Axis] Award Type [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Retained deficit Retained Earnings (Accumulated Deficit) Product and Service [Axis] Product and Service [Axis] Selling Stockholder Selling Stockholder [Member] Selling Stockholder Revaluation of contingent liability Revaluation of contingent liability Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease) 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] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Share Capital/Common stock Common Stock [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Noncontrolling Interest [Abstract] Noncontrolling interest Members' Equity Attributable to Noncontrolling Interest Intangible Asset, Finite-Lived, after Accumulated Amortization, Estimated Amortization Expense, Fiscal Year Maturity [Abstract] Intangible Asset, Finite-Lived, after Accumulated Amortization, Estimated Amortization Expense, Fiscal Year Maturity [Abstract] Equity Awards Adjustments Equity Awards Adjustments [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Total liabilities and equity Liabilities and Equity Deferred tax asset Deferred Tax Assets, Net Employee Stock Option Share-Based Payment Arrangement, Option [Member] Forfeited Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period, Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period, Grant Date Fair Value Noncontrolling interest Equity, Attributable to Noncontrolling Interest Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Related and Nonrelated Parties [Domain] Related and Nonrelated Parties [Domain] Geographic Distribution [Domain] Geographic Distribution [Domain] Tabular List, Table Tabular List [Table Text Block] Additional paid-in capital Additional Paid in Capital LONG-TERM DEBT Long-Term Debt [Text Block] 2029 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three 2026 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year Name Awards Close in Time to MNPI Disclosures, Individual Name Equity Equity, Including Portion Attributable to Noncontrolling Interest [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] Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period General and administrative expenses General and Administrative Expense Series 2024-1 Class A-1 Notes Series 2024-1 Class A-1 Notes, Variable Funding Notes [Member] Series 2024-1 Class A-1 Notes, Variable Funding Notes Sale of stock, price per share (in dollars per share) Sale of Stock, Price Per Share Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Receivables Receivables, Net, Current Preferred stock, par value $0.0001, 1,000 shares authorized; no shares issued and outstanding as of September 27, 2026 and December 28, 2025 Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Class of Stock [Domain] Class of Stock [Domain] Fair value on the modification date Share-Based Payment Arrangement, Plan Modification, Fair Value Share-Based Payment Arrangement, Plan Modification, Fair Value Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Series 2025 Notes Series 2025 Notes [Member] Series 2025 Notes Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Discontinued Operations and Disposal Groups [Abstract] 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] Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Cash receipts, net of amounts recognized during the period Contract with Customer, Liability, Cash Receipts Contract with Customer, Liability, Cash Receipts Additional Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Capitalized software development costs Payments to Develop Software Number of restaurants Number of Restaurants Name Trading Arrangement, Individual Name Unrecognized compensation cost Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Advertising expenses Advertising Expense Cash and cash equivalents Cash and Cash Equivalent Total Common Unit Outstanding Percent Common Unit Outstanding Percent Company Selected Measure Amount Company Selected Measure Amount Members’ distributions, net prior to the Reorganization Transactions Member Distributions, Net Member Distributions, Net Depreciation and amortization Depreciation, Depletion and Amortization Area Director Costs and Buyouts Area Director Costs And Buyouts [Policy Text Block] Area Director Costs And Buyouts Entity Address, Address Line Two Entity Address, Address Line Two Stock, Class of Stock [Table] Stock, Class of Stock [Table] Net income (loss) Net loss subsequent to the Reorganization Transactions Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Series 2019 Notes and the 2021-1 Series 2019 Notes and the 2021-1 [Member] Series 2019 Notes and the 2021-1 Current assets: Assets, Current [Abstract] Non-PEO NEO Non-PEO NEO [Member] Senior Notes Senior Notes [Member] Entity Address, Address Line One Entity Address, Address Line One Income tax expense Income Tax Expense (Benefit) Comprehensive Income (Loss) Comprehensive Income, Policy [Policy Text Block] Technology Technology-Based Intangible Assets [Member] Award Timing Method Award Timing Method [Text Block] Other revenues Product and Service, Other [Member] Principles of Consolidation Consolidation, Policy [Policy Text Block] Net increase (decrease) in cash, cash equivalents, and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Earn out consideration Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount Debt instrument, covenant, leverage ratio Debt Instrument, Covenant Terms, Maximum Leverage Ratio Debt Instrument, Covenant Terms, Maximum Leverage Ratio Series 2026-1A Notes Series 2026-1A Notes [Member] Series 2026-1A Notes Total debt, net of discount Long-Term Debt, Net Of Discount Long-Term Debt, Net Of Discount Net loss attributable to Jersey Mike’s Subs Inc. Net income (loss) Net Income (Loss) Attributable to Parent Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Schedule Of Common Units Outstanding Schedule Of Common Units Outstanding [Table Text Block] Schedule Of Common Units Outstanding Statement [Table] Statement [Table] Proceeds from issuance of Class A common stock in initial public offering, net of underwriting discounts and commissions Proceeds from Issuance Initial Public Offering Restatement Determination Date: Restatement Determination Date [Axis] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Continuing Common Unitholders Continuing Common Unitholders [Member] Continuing Common Unitholders Interest income Investment Income, Interest Master Franchise and Operation Agreement Master Franchise and Operation Agreement [Member] Master Franchise and Operation Agreement Conversion basis Common Stock, Conversion Basis, Ratio Common Stock, Conversion Basis, Ratio Schedule of Change in Deferred Revenues Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Geographic Distribution [Axis] Geographic Distribution [Axis] Franchised Units Franchised Units [Member] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation and Significant Accounting Policies [Text Block] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Numerator — diluted: Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]