Description of the Business	12 Months Ended
Description of the Business	Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of the Business	Description of the Business The Company Americold Realty Trust, Inc. together with its subsidiaries including the Operating Partnership (as defined below) (“ART”, “Americold”, the “Company”, “us” or “we”) is a Maryland corporation that operates as a real estate investment trust (“REIT”) for U.S. federal income tax purposes. The Company is a global leader in temperature-controlled storage, logistics, real estate and value added services, and is focused on the ownership, operation, acquisition and development of temperature-controlled warehouses. As of December 31, 2024, we operated a global network of 239 temperature-controlled warehouses encompassing approximately 1.4 billion cubic feet (unaudited), with 195 warehouses in North America, 25 in Europe, 17 warehouses in Asia-Pacific, and 2 warehouses in South America. In addition, we hold minority interests in two joint ventures, one with SuperFrio Armazéns Gerais S.A. (“SuperFrio”), which owns or operates 34 temperature-controlled warehouses in Brazil, and one with RSA Cold Holdings Limited (the “RSA joint venture”), which owns two temperature-controlled warehouses in Dubai. During 2010, the Company formed a Delaware limited partnership, Americold Realty Operating Partnership, L.P. (“the Operating Partnership”), and transferred substantially all of its interests in entities and associated assets and liabilities to the Operating Partnership. This structure is commonly referred to as an umbrella partnership REIT or an UPREIT structure. Americold Realty Trust, Inc. (“the REIT”) is the sole general partner of the Operating Partnership, owning 99% of the common general partnership interests as of December 31, 2024. Americold Realty Operations, Inc., a Delaware corporation and wholly-owned subsidiary of the REIT, is a limited partner of the Operating Partnership, owning less than 1% of the common general partnership interests as of December 31, 2024. Additionally, the aggregate partnership interests of all other limited partners was less than 0.1% as of December 31, 2024. As the sole general partner of the Operating Partnership, the REIT has full, exclusive and complete responsibility and discretion in the day-to-day management and control of the Operating Partnership. The limited partners of the Operating Partnership do not have rights to replace Americold Realty Trust, Inc. as the general partner nor do they have participating rights, although they do have certain protective rights. No limited partner shall be liable for any debts, liabilities, contracts or obligations of the Operating Partnership. A limited partner shall be liable to the Operating Partnership only to make payments of capital contribution, if any, as and when due. After a capital contribution is fully paid, no limited partner shall, except as otherwise may be legally required under Delaware law, be required to make any further contribution or other payments or lend any funds to the Operating Partnership. The Company grants Operating Partnership Profit Units (“OP Units”) to certain members of the Board of Directors and certain members of management of the Company, which are described further in Note 14 - Stock-Based Compensation. These units represent noncontrolling interests in the Operating Partnership that are not owned by Americold Realty Trust, Inc. On March 22, 2021, the Company filed Articles of Amendment to the Company’s Amended and Restated Declaration of Trust with the State Department of Assessments and Taxation of Maryland to increase the number of authorized common shares of beneficial interest, $0.01 par value per share, from 325,000,000 to 500,000,000. The Articles of Amendment were effective upon filing. The Company also has 25,000,000 authorized preferred shares, $0.01 par value per share; however, none were issued or outstanding as of December 31, 2024 or December 31, 2023. On May 25, 2022, the Company completed its conversion from a Maryland REIT to a Maryland corporation, pursuant to the Articles of Conversion, as approved by the stockholders at its annual stockholder meeting on May 17, 2022. Each issued and outstanding share of beneficial interest in Americold Realty Trust was converted into one share of common stock in Americold Realty Trust, Inc. Despite this conversion, the Company continues to operate as a REIT for U.S. federal income tax purposes. The Operating Partnership includes numerous disregarded entities (“DRE”). Additionally, the Operating Partnership conducts various business activities in North America, Europe, Asia-Pacific, and South America through several wholly-owned taxable REIT subsidiaries (“TRSs”). Recent Capital Markets Activity Universal Shelf Registration Statement On March 17, 2023, the Company and the Operating Partnership filed with the SEC an automatic shelf registration statement on Form S-3 (Registration No. 333-270664 and 333-270664-01) (as amended from time to time, the “Registration Statement”), registering an indeterminate amount of (i) the Company’s common stock, $0.01 par value per share, (ii) the Company’s preferred stock, $0.01 par value per share, (iii) depositary shares representing entitlement to all rights and preferences of fractions of the Company’s preferred shares of a specified series and represented by depositary receipts, (iv) warrants to purchase the Company’s common stock or preferred stock or depositary shares and (v) debt securities of the Operating Partnership, which may be fully and unconditionally guaranteed by the Company and certain subsidiaries. The Registration Statement was amended on September 3, 2024 to add certain direct and indirect subsidiaries of the Company as co-registrants to the Registration Statement, since each such co-registrant may be a guarantor of some or all of the debt securities of the Operating Partnership with respect to which offers and sales are registered under the Registration Statement. At the Market (“ATM”) Equity Program On March 17, 2023, the Company entered into an equity distribution agreement pursuant to which we could sell, from time to time, up to an aggregate sales price of $900.0 million of our common stock through an ATM Equity Program (the “Prior ATM Equity Program”). Sales of our common stock made pursuant to the Prior ATM Equity Program could be made in negotiated transactions or transactions that are deemed to be “at the market” offerings as defined in Rule 415 under the Securities Act, including sales made directly on the NYSE, or sales made to or through a market maker other than on an exchange, or as otherwise agreed between the applicable Agent and the Company. Sales could also be made on a forward basis pursuant to separate forward sale agreements. In August 2023, we sold 13,244,905 common shares under the Prior ATM Equity Program for net proceeds of $412.6 million. The net proceeds from sales of our common stock pursuant to the Prior ATM Equity Program were used to repay a portion of our revolver borrowings. On November 9, 2023, we entered into an equity distribution agreement that was substantially identical to and replaced the prior equity distribution agreement, pursuant to which we may sell, from time to time, up to an additional $900.0 million of our common shares through our ATM Equity Program (the “Current ATM Equity Program”). During the year ended December 31, 2024, we did not sell any shares of our common stock under the Current ATM Equity Program. On September 12, 2024, we completed an underwritten public offering of $500.0 million aggregate principal amount of the Company’s 5.409% notes (the “Public Senior Unsecured Notes”) due September 12, 2034. The details of this offering are further described in Note 9 - De bt to these Consolidated Financial Statements. Termination of Certain Employee Benefit Plans On February 28, 2023, the Company’s Board of Directors approved a plan to effect the termination of the Americold Retirement Income Plan (the “ARIP”). Additionally, on February 28, 2023, the Company amended the ARIP agreements in order to provide for a limited lump-sum window for eligible participants. On November 17, 2023, the Company and Principal Life Insurance Company (the “Insurer” or “Principal”) executed a Standard Single Premium Guaranteed Annuity Contract Purchase Agreement (the “Purchase Agreement”) by which the Insurer provides a nonparticipating single premium group annuity contract to the Company for a cash premium, to relieving the Plan Sponsor from any future payments to annuitants or beneficiaries under the ARIP. The transaction was completed and settled on November 27, 2023. The corresponding relief of the related net liability and recognition of deferred loss in "Accumulated other comprehensive loss” (AOCI) on the Consolidated Balance Sheets, coupled with the cash annuity payment of $1.3 million, resulted in the recognition of a settlement loss of $2.5 million recognized in “Acquisition, cyber incident, and other, net” on the Consolidated Statements of Operations during the year ended December 31, 2023. Project Orion In February 2023, we announced our transformation program “Project Orion” designed to drive future growth and achieve our long-term strategic objectives, through investment in our technology systems and business processes across our global platform. The project includes the implementation of a new, best-in-class, cloud-based enterprise resource planning (“ERP”) software system. The primary goals of this project are to streamline standard processes, reduce manual work and incrementally improve our business analytics capabilities. Highlights of the project include implementing centralized customer billing operations, a global payroll and human capital management platform, next-generation warehouse maintenance capabilities, global procurement functionality and shared-service operations in certain international regions, among others. We expect the benefits of these initiatives to include revenue and margin improvements through pricing data and analytics and heightened customer contract governance, finance and human resources cost reductions, information technology (“IT”) applications and infrastructure rationalization, reduced employee turnover, working capital efficiency and reduced IT maintenance capital expenditures. The activities associated with Project Orion are expected to be substantially complete within three years from the project’s start date. Since inception, the Company has incurred $161.4 million of implementation costs related to Project Orion, including expenses reported in “Acquisition, cyber incident, and other, net” on the Consolidated Statements of Operations and costs deferred in “Other assets” on the Consolidated Balance Sheets. The unamortized balance of the Project Orion deferred costs were $80.5 million and $43.9 million as of December 31, 2024 and 2023, respectively. During the three months ended June 30, 2024, the Company deployed the first phase of Project Orion. The implementation costs deferred within “Other assets” on the Consolidated Balance Sheets are now being amortized through “Selling, general, and administrative” expense on the Consolidated Statements of Operations. The useful lives of the Company’s internal-use software and capitalized cloud computing implementation costs are generally three to five years. However, the useful lives of major information system installations, such as implementations of ERP systems and certain related software, are determined on an individual basis and may exceed five years depending on the estimated period of use. The Company has determined the useful life of the new ERP system to be ten years and is amortizing the costs associated with the ERP implementation on a straight line basis over such period. The amortization expense recognized during the year ended December 31, 2024 related to the Project Orion ERP implementation was $4.2 million. Cybersecurity Incident On April 26, 2023, the Company became aware of a cybersecurity incident impacting a certain number of our systems and partially impacting operations for a limited period of time (the “Cyber Incident”). The Company engaged an external cyber security expert to initiate responses to contain and remediate the incident, and conduct a forensic investigation. Actions taken included preventative measures such as shutting down certain operating systems, supplementing existing security monitoring with additional scanning and other protective measures. The Company also notified law enforcement and its customers, informing them of both the incident and management’s efforts to minimize its impact on the Company’s daily operations. Technology information systems were reintroduced in a controlled phased approach and all locations successfully resumed operations at pre-cyberattack levels by June 30, 2023. As noted above, the Company engaged a leading cybersecurity defense firm that completed a forensic investigation of the incident and provided recommended actions in response to the findings. The Company has completed many of the recommended remediation activities and continues to enhance our policies and procedures meant to assess, identify, and effectively manage cybersecurity risks, threats, and incidents. Incremental charges recorded in conjunction with remediation and response efforts associated with the Cyber Incident have been recorded net of insurance recoveries within “Acquisition, cyber incident, and other, net" in the Consolidated Statements of Operations. This amount was primarily comprised of incremental internal labor costs, professional fees, customer claims, and related insurance deductibles. Foreign Currency Related Transactions Exchange rate adjustments resulting from foreign currency transactions are recognized in “Net loss:” in the Consolidated Statements of Operations, whereas effects resulting from the translation of financial statements are recognized in “Unrealized net gain (loss) on foreign currency” in the Consolidated Statements of Comprehensive (Loss) Income. Assets and liabilities of subsidiaries operating outside the United States with a functional currency other than U.S. dollars are translated into U.S. dollars using period-end exchange rates and income statement accounts are translated at weighted average exchange rates. For the years ended December 31, 2024, 2023 and 2022, the amount of foreign currency remeasurement recognized in the Consolidated Statements of Operations within “Other, net” was a gain of $8.8 million, a loss of $0.4 million and a loss of $1.0 million, respectively. The amount recognized for the year ended December 31, 2024 includes an adjustment related to our net investment hedges further described in Note 10 - Derivative Financial Instruments to these Consolidated Financial Statements. For the years ended December 31, 2024, 2023 and 2022, the amount of foreign currency translation recognized in the Consolidated Statements of Comprehensive (Loss) Income within “Unrealized net loss on foreign currency” was a loss of $14.4 million, a loss of $4.9 million and a loss of $23.5 million, respectively. Loss on Debt Extinguishment During the year ended December 31, 2024, the Company purchased the 11 facilities in the Company’s lease portfolio that were previously accounted for as failed sale-leaseback financing obligations. Total cash outflows related to these purchases of $191.0 million are included within “Termination of sale-leaseback financing obligations” on the Consolidated Statements of Cash Flows for the year ended December 31, 2024. These purchases resulted in the recognition of a $115.1 million loss on debt extinguishment during the year ended December 31, 2024. These amounts are recognized within “Loss on debt extinguishment, modifications and termination of derivative instruments” on the Consolidated Statements of Operations. Refer to No te 11 - Sale -L easeback s of Real Es tate for further details.