Commitments and Contingencies	6 Months Ended
Jun. 28, 2025
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies From time to time, we may be a party to legal proceedings that arise in the ordinary course of business, some of which may be covered by insurance. We establish an accrual for legal proceedings if and when those matters reach a stage where they present loss contingencies that are both probable and reasonably estimable. In such cases, there may be a possible exposure to loss in excess of any amounts accrued. We monitor those matters for developments that would affect the likelihood of a loss and the accrued amount, if any, thereof, and adjust the amount as appropriate. If the loss contingency at issue is not both probable and reasonably estimable, we do not establish an accrual, but will continue to monitor the matter for developments that could make the loss contingency both probable and reasonably estimable. If there is at least a reasonable possibility that a material loss will occur, we will provide disclosure regarding the contingency. Except as disclosed below, management believes that we do not have any pending legal proceedings that, separately or in the aggregate, would have a material adverse effect on our results of operations, financial condition or cash flows. On January 30, 2025, a federal securities class action lawsuit, captioned Liberato v. Grocery Outlet Holding Corp., et al., Case No. 25-cv-00957, was filed in the United States District Court in the Northern District of California against Grocery Outlet Holding Corp. and certain of its former officers purportedly on behalf of purchasers of our common stock between November 7, 2023 and May 7, 2024 (the “Liberato Lawsuit”). On March 28, 2025, a second and related federal securities class action lawsuit, captioned Cavanaugh v. Grocery Outlet Holding Corp., et al., Case No. 25-cv-2886, was filed in the United States District Court in the Northern District of California against the same defendants on behalf of purchasers of our common stock between August 8, 2023 and October 29, 2024 (the “Cavanaugh Lawsuit,” and together with the Liberato Lawsuit, the “Class Action Lawsuits”). The Class Action Lawsuits allege that the defendants violated federal securities laws by making materially false and misleading statements and/or failing to disclose material adverse facts regarding our transition to new and upgraded internal systems. The Class Action Lawsuits seek remedies under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), including an undisclosed amount of monetary damages, interest, fees and other costs. On March 31, 2025, the plaintiff who filed the Cavanaugh Lawsuit filed a motion to consolidate both actions and to be appointed as lead plaintiff. On June 3, 2025, the Class Action Lawsuits were consolidated in the United States District Court in the Northern District of California (the "Consolidated Class Action Lawsuit"). The lead plaintiff’s amended complaint in the Consolidated Class Action Lawsuit is due August 19, 2025, and the Company’s motion to dismiss is due October 21, 2025. On April 28, 2025, a federal stockholder derivative lawsuit, captioned Conners v. Sheedy, et al., Case No. 25-cv-03697, was filed in the United States District Court in the Northern District of California against certain of the Company’s directors and two of its former officers purportedly on behalf of the Company. On May 2, 2025, a second federal stockholder derivative lawsuit, captioned Jackson v. Lindberg, et. al., Case No. 25-cv-03843, was filed in the United States District Court in the Northern District of California against certain of the Company’s directors and two of its former officers purportedly on behalf of the Company. These stockholder derivative lawsuits are collectively referred to as the “Derivative Lawsuits.” The Derivative Lawsuits allege claims for breach of fiduciary duty, unjust enrichment, abuse of control, gross mismanagement, waste of corporate assets and for violations of Sections 10(b), 14(a), and 20(a) of the Exchange Act, based on similar allegations to those at issue in the Class Action Lawsuits. The Derivative Lawsuits seek, among other relief, undisclosed damages, restitution, fees and other costs, and the institution of corporate governance reforms. On July 14, 2025, the parties in the Derivative Lawsuits stipulated to consolidate the Derivative Lawsuits in the United States District Court in the Northern District of California and stay the consolidated Derivative Lawsuits pending resolution of the Company’s motion to dismiss in the Consolidated Class Action Lawsuit discussed above. On July 29, 2025, the court granted the parties' stipulation, consolidating the Derivatives Lawsuits and staying the consolidated derivative action. We intend to defend the Consolidated Class Action Lawsuit and the Derivative Lawsuits vigorously. We are unable to determine the probability of the outcome of the Consolidated Class Action Lawsuit or the Derivative Lawsuits, and the possible range of losses is not reasonably estimable.

From time to time, we may be a party to legal proceedings that arise in the ordinary course of business, some of which may be covered by insurance. We establish an accrual for legal proceedings if and when those matters reach a stage where they present loss contingencies that are both probable and reasonably estimable. In such cases, there may be a possible exposure to loss in excess of any amounts accrued. We monitor those matters for developments that would affect the likelihood of a loss and the accrued amount, if any, thereof, and adjust the amount as appropriate. If the loss contingency at issue is not both probable and reasonably estimable, we do not establish an accrual, but will continue to monitor the matter for developments that could make the loss contingency both probable and reasonably estimable. If there is at least a reasonable possibility that a material loss will occur, we will provide disclosure regarding the contingency. Except as disclosed below, management believes that we do not have any pending legal proceedings that, separately or in the aggregate, would have a material adverse effect on our results of operations, financial condition or cash flows.

On January 30, 2025, a federal securities class action lawsuit, captioned Liberato v. Grocery Outlet Holding Corp., et al., Case No. 25-cv-00957, was filed in the United States District Court in the Northern District of California against Grocery Outlet Holding Corp. and certain of its former officers purportedly on behalf of purchasers of our common stock between November 7, 2023 and May 7, 2024 (the “Liberato Lawsuit”). On March 28, 2025, a second and related federal securities class action lawsuit, captioned Cavanaugh v. Grocery Outlet Holding Corp., et al., Case No. 25-cv-2886, was filed in the United States District Court in the Northern District of California against the same defendants on behalf of purchasers of our common stock between August 8, 2023 and October 29, 2024 (the “Cavanaugh Lawsuit,” and together with the Liberato Lawsuit, the “Class Action Lawsuits”). The Class Action Lawsuits allege that the defendants violated federal securities laws by making materially false and misleading statements and/or failing to disclose material adverse facts regarding our transition to new and upgraded internal systems. The Class Action Lawsuits seek remedies under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), including an undisclosed amount of monetary damages, interest, fees and other costs. On March 31, 2025, the plaintiff who filed the Cavanaugh Lawsuit filed a motion to consolidate both actions and to be appointed as lead plaintiff. On June 3, 2025, the Class Action Lawsuits were consolidated in the United States District Court in the Northern District of California (the "Consolidated Class Action Lawsuit"). The lead plaintiff’s amended complaint in the Consolidated Class Action Lawsuit is due August 19, 2025, and the Company’s motion to dismiss is due October 21, 2025.

On April 28, 2025, a federal stockholder derivative lawsuit, captioned Conners v. Sheedy, et al., Case No. 25-cv-03697, was filed in the United States District Court in the Northern District of California against certain of the Company’s directors and two of its former officers purportedly on behalf of the Company. On May 2, 2025, a second federal stockholder derivative lawsuit, captioned Jackson v. Lindberg, et. al., Case No. 25-cv-03843, was filed in the United States District Court in the Northern District of California against certain of the Company’s directors and two of its former officers purportedly on behalf of the Company. These stockholder derivative lawsuits are collectively referred to as the “Derivative Lawsuits.” The Derivative Lawsuits allege claims for breach of fiduciary duty, unjust enrichment, abuse of control, gross mismanagement, waste of corporate assets and for violations of Sections 10(b), 14(a), and 20(a) of the Exchange Act, based on similar allegations to those at issue in the Class Action Lawsuits. The Derivative Lawsuits seek, among other relief, undisclosed damages, restitution, fees and other costs, and the institution of corporate governance reforms. On July 14, 2025, the parties in the Derivative Lawsuits stipulated to consolidate the Derivative Lawsuits in the United States District Court in the Northern District of California and stay the consolidated Derivative Lawsuits pending resolution of the Company’s motion to dismiss in the Consolidated Class Action Lawsuit discussed above. On July 29, 2025, the court granted the parties' stipulation, consolidating the Derivatives Lawsuits and staying the consolidated derivative action.