Company Overview, Basis of Presentation, and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Company Overview, Basis of Presentation, and Summary of Significant Accounting Policies	Company Overview, Basis of Presentation, and Summary of Significant Accounting Policies Nature of Operations and Basis of Presentation Rackspace Technology, Inc. ("Rackspace Technology") is a Delaware corporation controlled by investment funds affiliated with Apollo Global Management, Inc. and its subsidiaries (“Apollo”). Rackspace Technology was formed on July 21, 2016 but had no assets, liabilities or operating results until November 3, 2016 (the “Closing Date”) when Rackspace Hosting, Inc. (now named Rackspace Technology Global, Inc., or “Rackspace Technology Global”), a global provider of modern information technology-as-a-service, was acquired by Inception Parent, Inc., a wholly-owned entity indirectly owned by Rackspace Technology (the “Rackspace Acquisition”). Rackspace Technology Global commenced operations in 1998 as a limited partnership, and was incorporated in Delaware in March 2000. Rackspace Technology serves as the holding company for Rackspace Technology Global and does not engage in any material business or operations other than those related to its indirect ownership of the capital stock of Rackspace Technology Global and its subsidiaries or business or operations otherwise customarily undertaken by a holding company. For ease of reference, the terms “we,” “our company,” “the company,” “us,” or “our” as used in this report refer to Rackspace Technology and its consolidated subsidiaries. The unaudited consolidated financial statements include the accounts of Rackspace Technology, Inc. and our wholly-owned subsidiaries. Intercompany transactions and balances have been eliminated in consolidation. Unaudited Interim Financial Information The unaudited consolidated financial statements as of March 31, 2021, and for the three months ended March 31, 2020 and 2021, have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information. Accordingly, certain financial information and disclosures required for financial statements prepared under GAAP have been omitted in accordance with the SEC disclosure rules and regulations that permit reduced disclosure for interim periods. These unaudited interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the related notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2020 ("Annual Report on Form 10-K"). The unaudited interim consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements included in our Annual Report on Form 10-K and, in the opinion of management, reflect all adjustments, which include normal recurring adjustments, necessary for a fair statement of our financial position as of March 31, 2021, and our results of operations, cash flows and stockholders' equity for the three months ended March 31, 2020 and 2021. The results of operations for the three months ended March 31, 2021 are not necessarily indicative of the results of operations to be expected for the year ending December 31, 2021, or for any other interim period, or for any other future year. Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, revenue and expenses, and related disclosures of contingent assets and liabilities in the consolidated financial statements and accompanying notes. On an ongoing basis, we evaluate our estimates, including those related to the allowance for doubtful accounts, useful lives of property, equipment and software, software capitalization, incremental borrowing rates for lease liability measurement, fair values of intangible assets and reporting units, useful lives of intangible assets, share-based compensation, contingencies, and income taxes, among others. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ from our estimates. Impact of COVID-19 In March 2020, the World Health Organization declared COVID-19 a global pandemic. The effects of COVID-19 continue to evolve, and the full impact and duration of the virus are unknown. Currently, COVID-19 has not had a significant impact on our operations or financial performance; however, the ultimate extent of the impact of COVID-19 on our operational and financial performance will depend on certain developments, including the duration and severity of the outbreak, the pace of economic recovery, the possible resurgence in the spread of the virus, advances in testing, treatment, and prevention, including the efficacy and availability of vaccines, its impact on our customers, vendors and employees, and its impact on our sales cycles as well as industry events, all of which are uncertain and cannot be predicted. We continue to face a greater degree of uncertainty in making estimates and assumptions needed to prepare our consolidated financial statements and footnotes as a result of COVID-19. Significant Accounting Policies and Estimates Our Annual Report on Form 10-K includes an additional discussion of the significant accounting policies and estimates used in the preparation of our consolidated financial statements. There were no material changes to our significant accounting policies and estimates during the three months ended March 31, 2021. Change in Accounting Estimate In March 2021, we completed an assessment of the useful lives of certain assets within the Computers and equipment asset class. The timing of this review was based on a combination of factors accumulating over time that provided the company with updated information to make a better estimate on the economic lives of certain property and equipment. These factors included changes in customer purchasing patterns, technological advancements and the availability of extended equipment warranties. The assessment resulted in a revision within our policy ranges for certain useful lives in this asset class. This change in accounting estimate was effective in the first quarter of 2021. The effect of this change was a reduction in depreciation expense of $6.6 million for the three months ended March 31, 2021. Reclassifications Certain reclassifications have been made to the prior period consolidated financial statements to conform to the current period presentation. Specifically, the current portion of "Finance lease liabilities" is now presented separately from "Other current liabilities" in the Consolidated Balance Sheets. Recently Adopted Accounting Pronouncements Simplifying the Accounting for Income Taxes In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes, which removes certain exceptions to the general principles in Topic 740 and improves consistent application of and simplifies GAAP for other areas of Topic 740 by clarifying and amending existing guidance. We adopted this guidance on January 1, 2021. The adoption of this guidance did not have a material impact on our consolidated financial statements.