DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) for interim financial reporting. The condensed consolidated financial statements are unaudited, and in management’s opinion, include all adjustments, including normal recurring adjustments and accruals necessary for a fair presentation of the results for the interim periods presented. Operating results for the periods presented are not necessarily indicative of the results that may be expected for the full fiscal year ended December 31, 2021 or any future period. These unaudited condensed consolidated financial statements should be read in conjunction with the audited annual consolidated financial statements and notes included in our final prospectus for our IPO dated July 28, 2021 and filed with the SEC pursuant to Rule 424(b)(4) under the Securities Act of 1934 on July 30, 2021 (the “Final Prospectus”). There have been no material changes in our significant accounting policies as described in our consolidated financial statements included in our audited annual consolidated financial statements for the year ended December 31, 2020, other than the adoption of the accounting pronouncement as described below in Note 2. The unaudited condensed consolidated financial statements include the accounts of RHM and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated.
Use of Estimates	Use of Estimates The preparation of unaudited condensed consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts in the unaudited condensed consolidated financial statements and accompanying notes. We base our estimates on historical experience, and other assumptions we believe to be reasonable under the circumstances, which together form the basis for making judgments about the carrying values of assets and liabilities. Assumptions and estimates used in preparing our unaudited condensed consolidated financial statements include those related to the determination of allowances for credit losses, the capitalization and estimated useful life of internally developed software, contingent liabilities, useful lives of property and equipment, the incremental borrowing rate used to determine the present value of lease payments, the valuation and recognition of share-based compensation, the valuation of the convertible notes and warrant liability, the valuation and estimated useful lives of acquired intangible assets, uncertain tax positions, accrued liabilities, and the recognition and measurement of current and deferred income tax assets and liabilities. Actual results could differ from these estimates and could have a material adverse effect on our unaudited condensed consolidated financial statements.
Recently adopted accounting pronouncements/Recently issued accounting pronouncements not yet adopted	Recently Adopted Accounting Pronouncements Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity In August 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2020-06, Debt—Debt with Conversion and Other Options and Derivatives and Hedging - Contracts in Entity’s Own Equity. This guidance simplifies the accounting for convertible instruments by reducing the number of accounting models available for convertible debt instruments, amends the accounting guidance for evaluating the classification of certain contracts in an entity’s own equity, and modifies the diluted earnings per share calculations for convertible instruments. The guidance is effective for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years. Early adoption is permitted. We adopted this guidance effective January 1, 2021 using the full retrospective method. The adoption of the guidance did not have a material impact on our unaudited condensed consolidated financial statements. In May 2021, the FASB issued ASU 2021-04, Earnings Per Share, Debt—Modifications and Extinguishments, Compensation—Stock Compensation, and Derivatives and Hedging—Contracts in Entity’s Own Equity. The guidance clarifies modifications or exchanges of freestanding equity-classified written call options (e.g. warrants). The guidance is effective for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years. Early adoption is permitted. We adopted this guidance effective July 1, 2021. The adoption of the guidance did not have a material impact on our unaudited condensed consolidated financial statements. Recently Issued Accounting Pronouncements Not Yet Adopted There are no new accounting standards that we have not adopted that are material to us as of September 30, 2021.