CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares |
Mar. 29, 2026 |
Dec. 28, 2025 |
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| Common Class A | ||
| Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
| Common stock, authorized (in shares) | 2,000,000,000 | 2,000,000,000 |
| Common stock, issued (in shares) | 106,923,185 | 106,554,859 |
| Common stock, outstanding (in shares) | 106,923,185 | 106,554,859 |
| Common Class B | ||
| Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
| Common stock, authorized (in shares) | 300,000,000 | 300,000,000 |
| Common stock, issued (in shares) | 11,893,558 | 11,893,558 |
| Common stock, outstanding (in shares) | 11,893,558 | 11,893,558 |
NATURE OF OPERATIONS AND BASIS OF PRESENTATION |
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Mar. 29, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accounting Policies [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| NATURE OF OPERATIONS AND BASIS OF PRESENTATION | NATURE OF OPERATIONS AND BASIS OF PRESENTATION Sweetgreen, Inc., a Delaware corporation, together with its wholly owned subsidiaries (the “Company”), is a mission-driven, next generation restaurant and lifestyle brand that serves healthy food at scale. As of March 29, 2026, the Company owned and operated 285 restaurants in 24 states and Washington, D.C. During the thirteen weeks ended March 29, 2026, the Company had 4 Net New Restaurant Openings. The Company’s operations are conducted as one operating segment and one reportable segment. Additional details on the nature of the Company’s business and its reportable operating segment is included in Note 16, “Reportable Segment”. The Company has prepared the accompanying unaudited condensed consolidated financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial statements and pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments consisting of normal recurring adjustments necessary for a fair presentation of the Company’s financial position and results of operations. Interim results of operations are not necessarily indicative of the results that may be achieved for the full year. The Company’s fiscal year is a 52- or 53-week period that ends on the Sunday closest to the last day of December. A description of the Company’s accounting policies and other financial information is included in the audited consolidated financial statements filed with the SEC on Form 10-K for the fiscal year ended December 28, 2025. The financial statements and related disclosures in the accompanying unaudited interim condensed consolidated financial statements and footnotes do not include all information and footnotes required by GAAP for annual reports and should be read in conjunction with the Annual Report on Form 10-K. The Company had no components of other comprehensive income (loss) during the periods presented, and accordingly, comprehensive income (loss) equaled net income (loss). Restricted Cash—As of March 29, 2026 and December 28, 2025 the Company’s restricted cash balance was related to cash collateral for letters of credit associated with the Company’s workers’ compensation insurance policy and letters of credit to lease agreements. The reconciliation of cash and cash equivalents and restricted cash presented in the Company’s accompanying condensed consolidated balance sheets to the total amount shown in its condensed consolidated statements of cash flows is as follows:
Update to Accounting Policies Beginning in the first quarter of 2026, the Company started using its historical stock price to calculate expected volatility for stock option grants, as sufficient company-specific trading history was deemed available. Prior to 2026, the Company elected to use an approximation based on the volatility of other comparable public companies which compete directly with the Company as there was not sufficient share price history that extended through the expected term of the options given the timing of the IPO in 2021. Recently Issued Accounting Pronouncements Not Yet Adopted In November 2024, the FASB issued ASU No. 2024-03, "Disaggregation of Income Statement Expenses (Subtopic 220-40)." The ASU requires public entities to disaggregate, in a tabular presentation, certain income statement expenses into different categories, such as purchases of inventory, employee compensation, depreciation, and intangible asset amortization. The guidance is effective for fiscal years beginning after December 15, 2026, with early adoption permitted, and may be applied retrospectively. The Company is currently evaluating the impact of adopting this ASU on its consolidated financial statements and related disclosures. In September 2025, the FASB issued ASU 2025-06, “Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software”, which modernizes the accounting for internal-use software costs by removing all references to prescriptive and sequential software development stages. The new standard uses a probable-to-complete threshold, which requires entities to consider whether significant development uncertainty has been resolved before starting to capitalize software costs and aligns disclosure requirements with ASC 360, Property, Plant, and Equipment. With this new guidance, public companies shall begin capitalizing when both a.) management has authorized and committed funding to the project and b.) it is probable that the project will be completed and software will be used as intended. The guidance is effective for annual and interim reporting periods beginning after December 15, 2027, and may be applied prospectively, retrospectively, or using a modified transition approach, with early adoption permitted. The Company is currently evaluating the impacts of adopting this ASU on its consolidated financial statements and related disclosures. The Company reviewed all other recently issued accounting pronouncements and concluded that they were either not applicable or not expected to have a significant impact to the condensed consolidated financial statements.
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REVENUE RECOGNITION |
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| REVENUE RECOGNITION | REVENUE RECOGNITION The following table presents the Company’s revenue for the thirteen weeks ended March 29, 2026 and March 30, 2025 disaggregated by significant revenue channel:
Gift Cards The gift card liability included in gift cards and loyalty liability within the accompanying condensed consolidated balance sheets was as follows:
Revenue recognized from the redemption of gift cards that was included in gift card and loyalty liability at the beginning of the year was as follows:
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FAIR VALUE |
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| Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FAIR VALUE | FAIR VALUE The following tables present information about the Company’s financial liabilities measured at fair value on a recurring basis:
The fair value of the contingent consideration was determined based on significant inputs not observable in the market. In connection with the Company’s acquisition of Spyce Food Co. (“Spyce”) on September 7, 2021, the former equity holders of Spyce were eligible to receive up to $20.0 million (in the form of up to 714,285 additional shares of Class A common stock, calculated based on the initial offering price of the Company’s Class A common stock of $28.00 per share sold in the Company’s initial public offering (“IPO”) (the “Reference Price”)) in contingent consideration upon the achievement of certain performance milestones. Additionally, as of the date of the achievement of any of the three milestones, if the Volume-Weighted Average Price of the Company’s Class A common stock as of such milestone achievement date (“VWAP Price”) is less than the Reference Price, then the Company shall pay to each former equity holder of Spyce, in respect of each share of Class A common stock issued to such holder upon the achievement of such milestone, an amount in cash equal to the delta between the Reference Price and the VWAP Price. The contingent consideration payable upon the achievement of the three milestones was valued using the Monte Carlo method. The analysis considered, among other items, the equity value, the contractual terms of the Spyce merger agreement, potential liquidity event scenarios (prior to the IPO), the Company’s credit-adjusted discount rate, equity volatility, risk-free rate, and the probability that milestone targets required for issuance of shares under the contingent consideration will be achieved. During the first quarter of fiscal year 2026 the third and final milestone was accelerated upon completion of the sale of Spyce and certain assets relating to the kitchen automation technology known as the “Infinite Kitchen” and other related kitchen automation technology to certain subsidiaries of Wonder Group, Inc. (“Wonder”), resulting in a $7.0 million payment to the former equity holders of Spyce. Of this amount, $1.6 million was issued in the form of Class A common stock, based on the VWAP Price on the milestone achievement date of $6.61, and $5.4 million was paid in cash. The initial fair value of the contingent consideration at the acquisition date was $16.4 million. Since the acquisition date, the cumulative payments related to the contingent consideration were $30.4 million as of March 29, 2026, of which $8.4 million was issued in the form of Class A common stock and $22.0 million was issued in cash. Payments up to the initial fair value of the contingent consideration were included within financing activities within the condensed consolidated statements of cash flows if made in cash, or within non-cash financing activities if made in shares. Cumulative payments related to the contingent consideration liability above the initial fair value are included within operating activities within the condensed consolidated statement of cash flows. The liability was fully extinguished as of March 29, 2026 as a result of the third and final milestone payment. The following table provides a roll forward of the aggregate fair values of the Company’s contingent consideration, for which fair value is determined using Level 3 inputs.
During the thirteen weeks ended March 29, 2026 and March 30, 2025, the Company did not record any impairment charges. |
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Investments, Equity Method and Joint Ventures |
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Mar. 29, 2026 | |
| Equity Method Investments and Joint Ventures [Abstract] | |
| EQUITY INVESTMENT | EQUITY INVESTMENT As of March 29, 2026, the Company held 10,803,620 shares of Series C Preferred Stock of Wonder, received as partial consideration in connection with the Spyce sale (see Note 8). The Company holds a minority interest and does not have significant influence over Wonder. Wonder is a privately held company, and as such, the preferred shares comprising the Company’s investment are illiquid and fair value is not readily determinable. The Company accounts for this investment at cost, less impairments, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. For the thirteen weeks ended March 29, 2026, no adjustments have been recognized related to the investment. The investment is included within equity investments on the condensed consolidated balance sheets with a carrying value of $86.4 million as of March 29, 2026.
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PROPERTY AND EQUIPMENT |
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| PROPERTY AND EQUIPMENT | PROPERTY AND EQUIPMENT, NET Property and equipment are stated at cost. Depreciation is calculated using the straight-line method over the estimated useful lives of the assets. Leasehold improvements are amortized using the straight-line method over the shorter of the lease term or estimated useful life. A summary of property and equipment is as follows:
Depreciation expense for the thirteen weeks ended March 29, 2026 and March 30, 2025 was $16.9 million and $14.4 million, respectively. As of March 29, 2026, the Company had six facilities under construction expected to open during fiscal year 2026. As of December 28, 2025, the Company had 11 facilities under construction, six of which opened in fiscal year 2026 to date. Depreciation commences after a store opens and the related assets are placed in service.
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GOODWILL AND INTANGIBLE ASSETS, NET |
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| GOODWILL AND INTANGIBLE ASSETS, NET | GOODWILL AND INTANGIBLE ASSETS, NET During the thirteen weeks ended March 29, 2026, there were no changes in the carrying amount of goodwill of $27.8 million. In connection with the sale of Spyce completed during early fiscal year 2026, the Company allocated $8.2 million of goodwill to the disposal group, which was reflected in the goodwill balance as of December 28, 2025 as the disposal met the criteria for classification as held for sale. See Note 8 for further details. The following table presents the Company’s intangible assets, net balances:
Amortization expense for intangible assets was $1.7 million and $2.7 million for the thirteen weeks ended March 29, 2026 and March 30, 2025, respectively. Estimated future amortization of internal use software is as follows:
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ACCRUED EXPENSES |
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| ACCRUED EXPENSES | ACCRUED EXPENSES Accrued expenses consist of the following:
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ASSETS HELD FOR SALE AND BUSINESS DISPOSITION |
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| ASSETS HELD FOR SALE AND BUSINESS DISPOSITION | ASSETS HELD FOR SALE AND BUSINESS DISPOSITION On November 5, 2025, the Company entered into a definitive agreement to sell Spyce and certain assets relating to the kitchen automation technology known as the “Infinite Kitchen” and other related kitchen automation technology to certain subsidiaries of Wonder. As of December 28, 2025, the Company classified the Spyce business as held for sale, but determined the disposal did not meet the criteria for classification as discontinued operations. Accordingly, no impairment charges were recognized. On December 29, 2025, the Company completed the sale for total consideration of $186.4 million, made up of cash of $100 million and Series C preferred stock of Wonder with a fair value of $86.4 million. In connection therewith, the Company recorded a pre-tax gain, net of expenses, of $160.6 million for the thirteen weeks ended March 29, 2026. The activity was recognized within gain on disposal of business in the condensed consolidated statements of operations. At transaction close, the Company entered into an agreement with Wonder to continue to use and deploy Infinite Kitchen technology across the Company’s restaurants as part of an established licensing agreement. Wonder also agreed to provide certain other services to the Company for a transitional period under a supply and service agreement. Expenses associated with these agreements are presented in the respective line items of operating expenses in the condensed consolidated statements of operations. The following table summarizes the carrying values of the assets and liabilities classified as held for sale in the Company’s condensed consolidated balance sheets as of December 28, 2025:
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LEASES |
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| LEASES | LEASES The components of lease cost for the thirteen weeks ended March 29, 2026 and March 30, 2025 were as follows:
Supplemental cash flow information related to leases for the thirteen weeks ended March 29, 2026 and March 30, 2025:
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COMMON STOCK |
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| COMMON STOCK | COMMON STOCK As of March 29, 2026 and December 28, 2025, the Company had reserved shares of common stock for issuance in connection with the following:
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STOCK - BASED COMPENSATION |
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| Share-Based Payment Arrangement [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| STOCK - BASED COMPENSATION | STOCK-BASED COMPENSATION The Company grants stock options (including incentive stock options and non-qualified stock options), restricted stock units ("RSUs"), performance stock units ("PSUs"), and other types of awards under the 2021 Equity Incentive Plan (the "2021 Plan"). No further awards are granted under the Company's 2009 Stock Plan and 2019 Equity Incentive Plan; however, awards outstanding under such plans continue to be governed by their existing terms. Options granted during, or prior to, the thirteen weeks ended March 29, 2026 generally have vesting terms between twelve months and four years and have a contractual life of 10 years. Stock Options The Company grants stock options to its employees, as well as nonemployees (including directors and others who provide substantial services to the Company) under the 2021 Plan. The following table summarizes the Company’s stock option activity for the thirteen weeks ended March 29, 2026 and March 30, 2025:
The weighted-average fair value of options granted during the thirteen weeks ended March 29, 2026 and March 30, 2025 was $3.70 and $11.99, respectively. The fair value of each option granted has been estimated as of the date of the grant using the Black-Scholes option-pricing model. The Company has elected to account for forfeitures as they occur. During fiscal year 2025, the Company approved a modification to certain stock option awards in connection with the transition of a former executive from an employee to a non-employee consultant. The modification provided for (i) accelerated vesting of unvested awards, (ii) continued vesting of certain awards during the consulting period, and (iii) an extension of the post-termination exercise period, pertaining to a total of 924,097 options. The incremental expense related to each modified option has been estimated as of the modification date using the Black-Scholes option-pricing model and will be recognized as additional stock-based compensation expense over the remaining requisite service period. For the thirteen weeks ended March 29, 2026, the Company recognized the remaining $1.4 million of incremental expense related to this modification, which was recorded within total stock-based compensation expense for the period. As of March 29, 2026, there was $19.4 million in unrecognized compensation expense related to unvested stock-based compensation arrangements and is expected to be recognized over a weighted average period of 2.41 years. Restricted Stock Units and Performance Stock Units Restricted stock units The following table summarizes the Company’s RSU activity for the thirteen weeks ended March 29, 2026 and March 30, 2025:
During fiscal year 2025, the Company approved a modification to certain restricted stock units awards in connection with the transition of a former executive from an employee to a non-employee consultant. The modification provided for (i) continued vesting of certain awards during the consulting period and (ii) immediate vesting of any remaining unvested restricted stock units at the completion of the consulting period. The fair value of each modified RSU has been estimated using the current stock price as of the modification date. The incremental expense was recognized as additional stock-based compensation expense over the remaining requisite service period. For the thirteen weeks ended March 29, 2026, the Company recognized the remaining $0.2 million of incremental expense related to this RSU modification, which was recorded within total stock-based compensation expense for the period. The fair value of shares released as of the vesting date during the thirteen weeks ended March 29, 2026 was $0.7 million. As of March 29, 2026, unrecognized compensation expense related to RSUs was $9.4 million and is expected to be recognized over a weighted average period of 2.82 years. Performance stock units In October 2021, the Company granted 2,100,000 PSUs to each founder (the “founder PSUs”) for a total of 6,300,000 PSUs, under the 2019 Equity Incentive Plan. The founder PSUs vest upon the satisfaction of a service condition and the achievement of certain stock price goals. As of March 29, 2026 all compensation expense related to the founder PSUs was fully recognized. As of December 28, 2025, there were 4,500,000 performance stock units outstanding with a weighted-average grant date fair value of $15.62. There was no PSU activity during both of the thirteen weeks ended March 29, 2026 and March 30, 2025. A summary of stock-based compensation expense recognized during the thirteen weeks ended March 29, 2026 and March 30, 2025 is as follows:
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INCOME TAXES |
3 Months Ended |
|---|---|
Mar. 29, 2026 | |
| Income Tax Disclosure [Abstract] | |
| INCOME TAXES | INCOME TAXES For the thirteen weeks ended March 29, 2026, the Company calculated the tax provision using a discrete effective tax rate method. The Company’s effective tax rate for the thirteen weeks ended March 29, 2026 was 1.4%, which was lower than the U.S. statutory rate of 21.0%, primarily due to the valuation allowance recorded against the Company’s net deferred tax assets, offset by state income tax. As of March 29, 2026, the Company had a net deferred tax liability balance of $0.6 million, compared to $0.3 million as of December 28, 2025.
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EARNINGS (LOSS) PER SHARE |
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| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| EARNINGS (LOSS) PER SHARE | EARNINGS (LOSS) PER SHARE During the thirteen weeks ended March 29, 2026 and March 30, 2025, the rights, including the liquidation and dividend rights, of the holders of Class A and Class B common stock were identical, except with respect to voting. As the liquidation and dividend rights were identical, the undistributed earnings were allocated on a proportionate basis and the resulting net earnings (loss) per share attributable to common stockholders were, therefore, the same for both Class A and Class B common stock on an individual or combined basis. The following table sets forth the computation of earnings (loss) per common share:
The Company excluded the following potential common shares, presented based on amounts outstanding at each period end, from the computation of diluted earnings (loss) per share because including them would have had an anti-dilutive effect:
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RELATED-PARTY TRANSACTIONS |
3 Months Ended |
|---|---|
Mar. 29, 2026 | |
| Related Party Transactions [Abstract] | |
| RELATED-PARTY TRANSACTIONS | RELATED-PARTY TRANSACTIONS The Company’s founders each hold an indirect minority passive interest in Luzzatto Opportunity Fund II, LLC, an entity which holds indirect equity interests in Welcome to the Dairy, LLC, which is the owner of the properties leased by the Company for the Company’s principal corporate headquarters. For the thirteen weeks ended March 29, 2026 and March 30, 2025, total payments to Welcome to the Dairy, LLC, totaled $1.2 million and $1.5 million, respectively.
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COMMITMENTS AND CONTINGENCIES |
3 Months Ended |
|---|---|
Mar. 29, 2026 | |
| Commitments and Contingencies Disclosure [Abstract] | |
| COMMITMENTS AND CONTINGENCIES | COMMITMENTS AND CONTINGENCIES Lease Commitments The Company is obligated under various operating leases related to its office facilities, restaurant locations, and certain equipment under non-cancelable operating leases that expire on various dates. Under certain of these leases, the Company is liable for contingent rent based on a percentage of sales in excess of specified thresholds and typically responsible for its proportionate share of real estate taxes, common area maintenance charges, and other occupancy costs. Refer to Note 9, Leases, for additional information. Purchase Obligations Purchase obligations include agreements to purchase goods or services that are enforceable and legally binding on us and that specify all significant terms. The majority of the Company’s purchase obligations relate to amounts owed for supplies within its restaurants and are due within the next twelve months. Legal Contingencies The Company is subject to various claims, lawsuits, governmental investigations and administrative proceedings that arise in the ordinary course of business. The Company does not believe that the ultimate resolution of any of these matters will have a material effect on the Company’s financial position, results of operations, liquidity, or capital resources. However, an increase in the number of these claims, or one or more successful claims under which the Company incurs greater liabilities than the Company currently anticipates, could materially and adversely affect the Company’s business, financial position, results of operations, and cash flows.
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Segment Reporting |
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Mar. 29, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| REPORTABLE SEGMENT | REPORTABLE SEGMENT The Company operates as one operating segment and one reportable segment, generating revenue from retail sales of food and beverages by company-owned restaurants within the United States. The Company’s chief operating decision maker (“CODM”) is the chief executive officer. Segment information is prepared and managed on the same basis as described in the Company’s Annual Report on Form 10-K for the year ended December 28, 2025. The Company’s assets are managed centrally and are reported internally in the same manner as the condensed consolidated financial statements, and thus, no additional information is disclosed herein. Other than certain disaggregated expense information provided in relation to General and Administrative expense (“G&A”), significant expenses regularly provided to the CODM are presented on the face of the statement of operations. The CODM is also regularly provided disaggregated expense information for G&A, which is disaggregated between operating support center cost, stock-based compensation, all of which was included within G&A (see Note 11), and other expenses, as shown below:
(1)Operating support center costs consist primarily of operations, technology, finance, legal, human resources, administrative personnel, and other personnel costs that support restaurant development and operations, as well as brand-related marketing. (2)Other expense typically includes expenses recorded for accruals related to legal settlements, amortization costs associated with the implementation of the Company’s Enterprise Resource Planning system, and other costs associated with other one-time initiatives.
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Insider Trading Arrangements |
3 Months Ended |
|---|---|
Mar. 29, 2026 | |
| Trading Arrangements, by Individual | |
| Rule 10b5-1 Arrangement Adopted | false |
| Non-Rule 10b5-1 Arrangement Adopted | false |
| Rule 10b5-1 Arrangement Terminated | false |
| Non-Rule 10b5-1 Arrangement Terminated | false |
NATURE OF OPERATIONS AND BASIS OF PRESENTATION (Policies) |
3 Months Ended |
|---|---|
Mar. 29, 2026 | |
| Accounting Policies [Abstract] | |
| Restricted Cash | Restricted Cash—As of March 29, 2026 and December 28, 2025 the Company’s restricted cash balance was related to cash collateral for letters of credit associated with the Company’s workers’ compensation insurance policy and letters of credit to lease agreements.
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| Recently Issued Accounting Pronouncements Not Yet Adopted | Recently Issued Accounting Pronouncements Not Yet Adopted In November 2024, the FASB issued ASU No. 2024-03, "Disaggregation of Income Statement Expenses (Subtopic 220-40)." The ASU requires public entities to disaggregate, in a tabular presentation, certain income statement expenses into different categories, such as purchases of inventory, employee compensation, depreciation, and intangible asset amortization. The guidance is effective for fiscal years beginning after December 15, 2026, with early adoption permitted, and may be applied retrospectively. The Company is currently evaluating the impact of adopting this ASU on its consolidated financial statements and related disclosures. In September 2025, the FASB issued ASU 2025-06, “Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software”, which modernizes the accounting for internal-use software costs by removing all references to prescriptive and sequential software development stages. The new standard uses a probable-to-complete threshold, which requires entities to consider whether significant development uncertainty has been resolved before starting to capitalize software costs and aligns disclosure requirements with ASC 360, Property, Plant, and Equipment. With this new guidance, public companies shall begin capitalizing when both a.) management has authorized and committed funding to the project and b.) it is probable that the project will be completed and software will be used as intended. The guidance is effective for annual and interim reporting periods beginning after December 15, 2027, and may be applied prospectively, retrospectively, or using a modified transition approach, with early adoption permitted. The Company is currently evaluating the impacts of adopting this ASU on its consolidated financial statements and related disclosures. The Company reviewed all other recently issued accounting pronouncements and concluded that they were either not applicable or not expected to have a significant impact to the condensed consolidated financial statements.
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NATURE OF OPERATIONS AND BASIS OF PRESENTATION (Tables) |
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Mar. 29, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accounting Policies [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Cash and Cash Equivalents | The reconciliation of cash and cash equivalents and restricted cash presented in the Company’s accompanying condensed consolidated balance sheets to the total amount shown in its condensed consolidated statements of cash flows is as follows:
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| Schedule of Restricted Cash | The reconciliation of cash and cash equivalents and restricted cash presented in the Company’s accompanying condensed consolidated balance sheets to the total amount shown in its condensed consolidated statements of cash flows is as follows:
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REVENUE RECOGNITION (Tables) |
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| Revenue from Contract with Customer [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Disaggregation of Revenue by Significant Revenue Channel | The following table presents the Company’s revenue for the thirteen weeks ended March 29, 2026 and March 30, 2025 disaggregated by significant revenue channel:
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| Schedule of Gift Card Liability Included in Gift Card and Loyalty Liability | The gift card liability included in gift cards and loyalty liability within the accompanying condensed consolidated balance sheets was as follows:
Revenue recognized from the redemption of gift cards that was included in gift card and loyalty liability at the beginning of the year was as follows:
Changes in the Company’s SG Rewards liability included in gift cards and loyalty liability on the condensed consolidated balance sheets were as follows:
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FAIR VALUE (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 29, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Financial Liabilities Measured at Fair Value | The following tables present information about the Company’s financial liabilities measured at fair value on a recurring basis:
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| Schedule of Fair Values Roll Forward of Contingent Consideration | The following table provides a roll forward of the aggregate fair values of the Company’s contingent consideration, for which fair value is determined using Level 3 inputs.
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| Schedule of Assets Measured on Recurring Basis | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
PROPERTY AND EQUIPMENT (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 29, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property, Plant and Equipment [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Property and Equipment | A summary of property and equipment is as follows:
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GOODWILL AND INTANGIBLE ASSETS, NET (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 29, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Goodwill and Intangible Assets Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Intangible Asset, Net | The following table presents the Company’s intangible assets, net balances:
|
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| Schedule of Estimated Amortization of Internal Use Software | Estimated future amortization of internal use software is as follows:
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ACCRUED EXPENSES (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 29, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Payables and Accruals [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Accrued Expenses | Accrued expenses consist of the following:
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Discontinued Operations and Disposal Groups (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 29, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Discontinued Operations and Disposal Groups [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disclosure of Long-Lived Assets Held-for-Sale | The following table summarizes the carrying values of the assets and liabilities classified as held for sale in the Company’s condensed consolidated balance sheets as of December 28, 2025:
|
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LEASES (Tables) |
3 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 29, 2026 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Leases [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Lease Cost | The components of lease cost for the thirteen weeks ended March 29, 2026 and March 30, 2025 were as follows:
Supplemental cash flow information related to leases for the thirteen weeks ended March 29, 2026 and March 30, 2025:
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COMMON STOCK (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 29, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Reserved Shares of Common Stock For Issuance | As of March 29, 2026 and December 28, 2025, the Company had reserved shares of common stock for issuance in connection with the following:
(1) On January 1, 2026, shares available for issuance automatically increased by 1,184,484 shares in accordance with the terms of the 2021 Employee Stock Purchase Plan (“ESPP”). No offering period has commenced under the ESPP as of March 29, 2026.
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STOCK - BASED COMPENSATION (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 29, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Share-Based Payment Arrangement [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Stock Option Activity | The following table summarizes the Company’s stock option activity for the thirteen weeks ended March 29, 2026 and March 30, 2025:
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| Summary of Restricted Stock Units Activity | The following table summarizes the Company’s RSU activity for the thirteen weeks ended March 29, 2026 and March 30, 2025:
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| Summary of Stock-based Compensation Expense | A summary of stock-based compensation expense recognized during the thirteen weeks ended March 29, 2026 and March 30, 2025 is as follows:
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EARNINGS (LOSS) PER SHARE (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 29, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Computation of Net Loss Per Common Share | The following table sets forth the computation of earnings (loss) per common share:
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| Schedule of Anti-dilutive Shares Excluded |
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SEGMENT REPORTING (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 29, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Segment Reporting Information, by Segment | The CODM is also regularly provided disaggregated expense information for G&A, which is disaggregated between operating support center cost, stock-based compensation, all of which was included within G&A (see Note 11), and other expenses, as shown below:
(1)Operating support center costs consist primarily of operations, technology, finance, legal, human resources, administrative personnel, and other personnel costs that support restaurant development and operations, as well as brand-related marketing. (2)Other expense typically includes expenses recorded for accruals related to legal settlements, amortization costs associated with the implementation of the Company’s Enterprise Resource Planning system, and other costs associated with other one-time initiatives.
|
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NATURE OF OPERATIONS AND BASIS OF PRESENTATION - Narrative (Details) $ in Thousands |
3 Months Ended | |
|---|---|---|
|
Mar. 29, 2026
USD ($)
segment
state
restaurant
|
Dec. 28, 2025
USD ($)
|
|
| Accounting Policies [Abstract] | ||
| Number of restaurants | restaurant | 285 | |
| Number of states | state | 24 | |
| Number of restaurants opened | restaurant | 4 | |
| Operating segments | segment | 1 | |
| Reportable segments | segment | 1 | |
| Accounts receivable | $ | $ 7,042 | $ 5,166 |
NATURE OF OPERATIONS AND BASIS OF PRESENTATION - Reconciliation of Cash and Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands |
Mar. 29, 2026 |
Dec. 28, 2025 |
Mar. 30, 2025 |
Dec. 29, 2024 |
|---|---|---|---|---|
| Reconciliation of cash, cash equivalents and restricted cash: | ||||
| Cash and cash equivalents | $ 156,799 | $ 89,177 | ||
| Restricted cash, noncurrent | 4,184 | 4,166 | ||
| Total cash, cash equivalents and restricted cash shown on statements of cash flows | $ 160,983 | $ 93,343 | $ 186,596 | $ 217,429 |
REVENUE RECOGNITION - Disaggregation of Revenue (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 29, 2026 |
Mar. 30, 2025 |
|
| Disaggregation of Revenue [Line Items] | ||
| Total Revenue | $ 161,521 | $ 166,304 |
| Owned Digital Channels | Direct | ||
| Disaggregation of Revenue [Line Items] | ||
| Total Revenue | 62,827 | 52,984 |
| In-Store Channel (Non-Digital component) | Direct | ||
| Disaggregation of Revenue [Line Items] | ||
| Total Revenue | 52,961 | 66,706 |
| Marketplace Channel | 3rd party | ||
| Disaggregation of Revenue [Line Items] | ||
| Total Revenue | $ 45,733 | $ 46,614 |
REVENUE RECOGNITION - Schedule of Contract with Customer, Contract Asset, Contract Liability, and Receivable (Details) - USD ($) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
Mar. 29, 2026 |
Mar. 30, 2025 |
Dec. 28, 2025 |
|
| Disaggregation of Revenue [Line Items] | |||
| Gift Card Liability | $ 7,199 | $ 7,177 | |
| Gift Cards | |||
| Disaggregation of Revenue [Line Items] | |||
| Gift Card Liability | 3,576 | $ 3,649 | |
| Revenue recognized from gift card liability balance at the beginning of the year | $ 374 | $ 411 | |
REVENUE RECOGNITION - Deferred Liability Rollforward (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 29, 2026 |
Mar. 30, 2025 |
|
| Contract with customer rollforward | ||
| SG Rewards liability, beginning balance | $ 3,623 | $ 0 |
| Revenue deferred | 4,335 | 0 |
| Revenue recognized | (4,240) | 0 |
| SG Rewards liability, ending balance | $ 3,528 | $ 0 |
FAIR VALUE - Schedule of Financial Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands |
Mar. 29, 2026 |
Dec. 28, 2025 |
|---|---|---|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Right-of-use assets | $ 285,810 | $ 284,263 |
| Recurring | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Contingent consideration | 0 | 7,000 |
| Total | 0 | 7,000 |
| Recurring | Level 1 | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Contingent consideration | 0 | 0 |
| Total | 0 | 0 |
| Recurring | Level 2 | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Contingent consideration | 0 | 0 |
| Total | 0 | 0 |
| Recurring | Level 3 | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Contingent consideration | 0 | 7,000 |
| Total | $ 0 | $ 7,000 |
FAIR VALUE - Schedule of Fair Values Roll Forward of Contingent Consideration (Details) $ in Thousands |
3 Months Ended |
|---|---|
|
Mar. 29, 2026
USD ($)
| |
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | |
| Milestone payment | $ (7,000) |
| Level 3 | Contingent consideration | |
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | |
| Beginning Balance | 7,000 |
| Ending Balance | $ 0 |
Investments, Equity Method and Joint Ventures (Details) - USD ($) $ in Thousands |
Mar. 29, 2026 |
Dec. 28, 2025 |
|---|---|---|
| Equity Method Investments and Joint Ventures [Abstract] | ||
| Shares owned of Wonder Group | 10,803,620 | |
| Value of investment in Wonder Group | $ 86,429 | $ 0 |
PROPERTY AND EQUIPMENT - Summary of Property and Equipment (Details) - USD ($) $ in Thousands |
Mar. 29, 2026 |
Dec. 28, 2025 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment | $ 624,215 | $ 619,463 |
| Less: accumulated depreciation | (305,891) | (292,560) |
| Property and equipment, net | 318,324 | 326,903 |
| Kitchen equipment | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment | 139,372 | 136,136 |
| Computers and other equipment | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment | 50,869 | 49,541 |
| Furniture and fixtures | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment | 51,532 | 50,072 |
| Leasehold improvements | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment | 354,083 | 347,023 |
| Assets not yet placed in service | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment | $ 28,359 | $ 36,691 |
PROPERTY AND EQUIPMENT - Narrative (Details) $ in Millions |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
Mar. 29, 2026
USD ($)
|
Mar. 30, 2025
USD ($)
|
Dec. 28, 2025 |
|
| Property, Plant and Equipment [Abstract] | |||
| Depreciation expense | $ 16.9 | $ 14.4 | |
| Number of facilities under construction | 6 | 11 | |
| Number of facilities under construction opened in current year | 6 | ||
GOODWILL AND INTANGIBLE ASSETS, NET - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
Mar. 29, 2026 |
Mar. 30, 2025 |
Dec. 28, 2025 |
|
| Indefinite-lived Intangible Assets [Line Items] | |||
| Goodwill | $ 27,793 | $ 27,793 | |
| Goodwill included in disposal group | 8,200 | $ 8,177 | |
| Amortization expense for intangible assets | 275 | $ 242 | |
| Software and Software Development Costs | |||
| Indefinite-lived Intangible Assets [Line Items] | |||
| Amortization expense for intangible assets | $ 1,700 | $ 2,700 | |
GOODWILL AND INTANGIBLE ASSETS, NET - Intangible Asset, Net (Details) - USD ($) $ in Thousands |
Mar. 29, 2026 |
Dec. 28, 2025 |
|---|---|---|
| Indefinite-lived Intangible Assets [Line Items] | ||
| Accumulated amortization | $ (43,848) | $ (42,100) |
| Intangible assets, net | 10,240 | 10,424 |
| Internal use software | ||
| Indefinite-lived Intangible Assets [Line Items] | ||
| Total intangible assets | $ 54,088 | $ 52,524 |
GOODWILL AND INTANGIBLE ASSETS, NET - Estimated Amortization of Internal Use Software (Details) - USD ($) $ in Thousands |
Mar. 29, 2026 |
Dec. 28, 2025 |
|---|---|---|
| Goodwill and Intangible Assets Disclosure [Abstract] | ||
| 2026 | $ 4,584 | |
| 2027 | 4,008 | |
| 2028 | 1,568 | |
| 2029 | 80 | |
| Intangible assets, net | $ 10,240 | $ 10,424 |
ACCRUED EXPENSES (Details) - USD ($) $ in Thousands |
Mar. 29, 2026 |
Dec. 28, 2025 |
|---|---|---|
| Payables and Accruals [Abstract] | ||
| Accrued general and sales tax | $ 9,818 | $ 6,588 |
| Fixed asset accrual | 4,661 | 7,381 |
| Accrued settlements and legal fees | 2,479 | 3,723 |
| Rent deferrals and accrued rent | 903 | 1,036 |
| Accrued delivery fee | 1,208 | 969 |
| Other accrued expenses | 14,108 | 14,042 |
| Total accrued expenses | $ 33,177 | $ 33,739 |
ASSETS HELD FOR SALE AND BUSINESS DISPOSITION - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 29, 2026 |
Dec. 28, 2025 |
|
| Discontinued Operations and Disposal Groups [Abstract] | ||
| Consideration of sale | $ 186.4 | |
| Proceeds from sale | 100.0 | |
| Implied value of disposal | $ 86.4 | |
| Gain on disposal (before tax) | $ (160.6) |
ASSETS HELD FOR SALE AND BUSINESS DISPOSITION (Details) - USD ($) $ in Thousands |
Mar. 29, 2026 |
Dec. 28, 2025 |
|---|---|---|
| Assets | ||
| Prepaid Expenses | $ 72 | |
| Other current assets | 307 | |
| Operating lease assets | 562 | |
| Property and equipment, net | 5,324 | |
| Goodwill | $ 8,200 | 8,177 |
| Intangible assets, net | 10,935 | |
| Security deposits | 50 | |
| Total assets held for sale | 25,427 | |
| Liabilities | ||
| Current portion of operating lease liabilities | 445 | |
| Operating lease liabilities, net of current portion | 640 | |
| Total liabilities held for sale | $ 1,085 |
LEASES - Lease Cost (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 29, 2026 |
Mar. 30, 2025 |
|
| Leases [Abstract] | ||
| Operating lease cost | $ 15,222 | $ 13,724 |
| Variable lease cost | 3,400 | 3,138 |
| Short term lease cost | 154 | 79 |
| Total lease cost | $ 18,776 | $ 16,941 |
LEASES - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 29, 2026 |
Mar. 30, 2025 |
|
| Cash paid for amounts included in the measurement of lease liabilities: | ||
| Operating cash flows from operating leases, net of lease incentives | $ 15,920 | $ 19,994 |
| Right of use assets obtained in exchange for lease obligations: | ||
| Operating leases | $ 11,256 | $ 13,448 |
COMMON STOCK (Details) - shares |
Jan. 01, 2026 |
Mar. 29, 2026 |
Dec. 28, 2025 |
|---|---|---|---|
| Class of Stock [Line Items] | |||
| Total reserved shares of common stock | 31,170,461 | 30,367,496 | |
| Common stock increase (in shares) | 1,184,484 | ||
| Shares available for future issuance under the 2021 Equity Incentive Plan | |||
| Class of Stock [Line Items] | |||
| Total reserved shares of common stock | 5,394,746 | 6,652,380 | |
| Shares reserved for achievement of Spyce milestones | |||
| Class of Stock [Line Items] | |||
| Total reserved shares of common stock | 0 | 250,000 | |
| Stock Options | |||
| Class of Stock [Line Items] | |||
| Total reserved shares of common stock | 14,612,476 | 14,070,559 | |
| Employee Stock | |||
| Class of Stock [Line Items] | |||
| Total reserved shares of common stock | 5,295,815 | 4,111,331 | |
| Restricted Stock Units And Performance Share Units | |||
| Class of Stock [Line Items] | |||
| Total reserved shares of common stock | 5,867,424 | 5,283,226 |
STOCK - BASED COMPENSATION - Summary of Restricted Stock Units and Performance Stock Units Activity (Details) - $ / shares |
1 Months Ended | 3 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
Oct. 31, 2021 |
Mar. 29, 2026 |
Mar. 30, 2025 |
Dec. 28, 2025 |
|
| RSUs | ||||
| Number of Shares | ||||
| Outstanding at beginning of year (in shares) | 783,226 | 910,024 | 910,024 | |
| Granted (in shares) | 740,958 | 181,377 | ||
| Released (in shares) | (124,842) | (341,116) | ||
| Forfeited (in shares) | (31,918) | (13,084) | ||
| Outstanding at end of year (in shares) | 1,367,424 | 737,201 | 783,226 | |
| Weighted-Average Grant Date Fair Value | ||||
| Outstanding at beginning of year (in dollars per share) | $ 12.71 | $ 17.72 | $ 17.72 | |
| Granted (in dollars per share) | 5.32 | 23.59 | ||
| Released (in dollars per share) | 15.87 | 20.56 | ||
| Forfeited (in dollars per share) | 24.17 | 20.24 | ||
| Outstanding at end of year (in dollars per share) | $ 8.15 | $ 17.81 | 12.71 | |
| PSUs | ||||
| Number of Shares | ||||
| Granted (in shares) | 6,300,000 | |||
| Weighted-Average Grant Date Fair Value | ||||
| Forfeited (in dollars per share) | $ 15.62 | |||
STOCK - BASED COMPENSATION - Summary of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 29, 2026 |
Mar. 30, 2025 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Total stock-based compensation | $ 5,804 | $ 10,221 |
| Stock-options | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Total stock-based compensation | 3,641 | 2,618 |
| Restricted stock units | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Total stock-based compensation | 1,504 | 4,208 |
| Performance stock units | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Total stock-based compensation | $ 659 | $ 3,395 |
INCOME TAXES (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 29, 2026 |
Dec. 28, 2025 |
|
| Income Tax Disclosure [Abstract] | ||
| Effective income tax rate, (percent) | 1.40% | |
| Deferred tax liabilities | $ 0.6 | $ 0.3 |
EARNINGS (LOSS) PER SHARE - Computation of Net Loss Per Common Share (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 29, 2026 |
Mar. 30, 2025 |
|
| Earnings Per Share [Abstract] | ||
| Net income (loss) | $ 125,809,000 | $ (25,039,000) |
| Weighted-average common shares outstanding—basic (in shares) | 118,664,898 | 117,307,189 |
| Dilutive Securities, Effect on Basic Earnings Per Share | $ 1,562,315 | $ 0 |
| Weighted-average common shares outstanding— diluted (in shares) | 120,227,213 | 117,307,189 |
| Earnings per share—basic (in dollars per share) | $ 1.06 | $ (0.21) |
| Earnings per share—diluted (in dollars per share) | $ 1.05 | $ (0.21) |
EARNINGS (LOSS) PER SHARE - Schedule of Anti-dilutive Shares Excluded (Details) - shares |
3 Months Ended | |
|---|---|---|
Mar. 29, 2026 |
Mar. 30, 2025 |
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total common stock equivalents | 15,742,150 | 19,836,811 |
| Options to purchase common stock | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total common stock equivalents | 10,652,168 | 14,099,610 |
| Time-based vesting restricted stock units | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total common stock equivalents | 589,982 | 737,201 |
| Performance stock units | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total common stock equivalents | 4,500,000 | 4,500,000 |
| Contingently issuable stock | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total common stock equivalents | 0 | 500,000 |
RELATED-PARTY TRANSACTIONS (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 29, 2026 |
Mar. 30, 2025 |
|
| Related Party | Dairy, LLC | Chief Financial Officer | ||
| Related Party Transaction [Line Items] | ||
| Payments to related parties | $ 1.2 | $ 1.5 |
SEGMENT REPORTING (Details) $ in Thousands |
3 Months Ended | |
|---|---|---|
|
Mar. 29, 2026
USD ($)
segment
|
Mar. 30, 2025
USD ($)
|
|
| Segment Reporting, Asset Reconciling Item [Line Items] | ||
| Operating segments | segment | 1 | |
| Reportable segments | segment | 1 | |
| Total stock-based compensation | $ 5,804 | $ 10,221 |
| Total General and administrative | 29,267 | 38,337 |
| Reportable Segment | ||
| Segment Reporting, Asset Reconciling Item [Line Items] | ||
| Operating support center cost | 23,176 | 27,706 |
| Total stock-based compensation | 5,804 | 10,221 |
| Other expenses | 287 | 410 |
| Total General and administrative | $ 29,267 | $ 38,337 |