Basis of Presentation and Summary of Significant Accounting Policies (Policies) |
6 Months Ended |
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Jun. 30, 2026 | |
| Accounting Policies [Abstract] | |
| Basis of Presentation | Basis of Presentation The accompanying condensed consolidated financial statements of the Company have been prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). These statements, therefore, should be read in conjunction with the consolidated financial statements and related notes of HMH B.V. for the year ended December 31, 2025 included in the final prospectus of HMH Holding dated March 31, 2026 and filed with the SEC on April 1, 2026. The condensed consolidated financial statements included in this Quarterly Report on Form 10-Q reflect all normal and recurring adjustments which, in the opinion of management, are necessary for a fair presentation of our consolidated financial position as of June 30, 2026 and December 31, 2025 and the consolidated results of operations and cash flows for the three and six months ended June 30, 2026 and 2025. The unaudited results of operations for the interim periods reported are not necessarily indicative of results to be expected for the full year. Immediately following the closing of the IPO, we are the successor to HMH B.V. for financial reporting purposes. Subsequent to the IPO, the Company’s sole material asset is its equity interest in HMH B.V. As the sole managing member and holder of 100% of the voting interest of HMH B.V., we operate and control all of its business and affairs and therefore consolidate its results for financial reporting purposes. The reorganization transactions are accounted for as a reorganization of entities under common control. Accordingly, the condensed consolidated financial statements have been retrospectively presented to reflect the assets and liabilities received in the Corporate Reorganization at HMH B.V.'s historical carrying amounts, as if the common control transaction had occurred on January 1, 2025, the earliest period presented.
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| Reclassification | Certain amounts in prior periods have been reclassified to conform with current period presentation.
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| Use of Estimates | Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make judgments, estimates and assumptions that affect the application of policies and reported amounts of assets and liabilities, income and expenses. Although management believes these assumptions to be reasonable, given historical experience, actual amounts and results could differ from these estimates. Estimates are used for, but are not limited to, determining the following: allowance for credit losses and inventory valuation reserves; recoverability of long-lived assets; revenue recognition on long-term contracts; valuation of goodwill; useful lives used in depreciation and amortization; income taxes and related valuation allowances; accruals for contingencies; actuarial assumptions to determine costs and liabilities related to employee benefit plans; stock-based compensation expense; valuation of derivatives; and the fair value of assets acquired and liabilities assumed in business combinations. The estimates and underlying assumptions are reviewed on an ongoing basis. Revisions to accounting estimates are recognized in the period in which the estimate is revised and in any future periods affected.
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| Offering Costs | Offering Costs In connection with our IPO, HMH B.V. and its affiliates incurred accounting, legal and other costs, which were reimbursed by us. Such costs were recorded as a reduction to equity against the proceeds from the IPO. Deferred offering costs of $21.3 million and $26.2 million were recognized in Prepaids and other current assets in our Condensed Consolidated Balance Sheets as of December 31, 2025 and at the IPO date of April 2, 2026, respectively.
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| Share-based Compensation | Share-based Compensation We account for share-based compensation awards granted to employees, directors, and non-employees in accordance with ASC 718, Compensation—Stock Compensation based on the estimated grant date fair value and recognize the expense over the requisite service period, net of actual forfeitures. The fair value of restricted stock awards and restricted stock units (“RSUs”) is determined based on the closing price of our common stock on the date of grant and the fair value of performance share units (“PSUs”) is measured using a Monte Carlo simulation model. The fair value of RSUs and PSUs granted prior to the IPO was determined with the assistance of independent third-party valuations. These awards were contingent upon a liquidity event, which is defined as an IPO or a change of control (each as defined in the applicable award agreement) of the Company and the completion of a service period. The performance condition related to these awards was met upon the commencement of trading of our Class A common stock on The Nasdaq Global Select Market. For the three and six months ended June 30, 2026, we recognized share-based compensation of $22.8 million, including $22.5 million related to pre-IPO share-based awards.
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| New Accounting Standards to be Adopted | New Accounting Standards to be Adopted As an emerging growth company (“EGC”), the Jumpstart Our Business Startups Act (the “JOBS Act”) allows the Company to delay adoption of new or revised accounting pronouncements applicable to public companies until such pronouncements are made applicable to private companies. The JOBS Act does not preclude an EGC from early adopting new or revised accounting standards codification. The Company has elected to use extended transition periods permissible under the JOBS Act, while also early adopting certain accounting pronouncements. The adoption dates discussed below reflect these elections. In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures” (“ASU 2023-09”), which is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in ASU 2023-09 provide for enhanced income tax information primarily through changes to the rate reconciliation and income taxes paid information. ASU 2023-09 is effective for the Company prospectively for all annual periods beginning after December 15, 2025. The Company is currently evaluating the impact of this standard on its disclosures. 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 the new 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” (“ASU 2025-06”). Under the new guidance, internal-use software costs are capitalized when management has authorized and committed to funding the project and it is probable that the software will be completed and used for its intended function. ASU 2025-06 is effective for the Company for annual reporting periods beginning after December 15, 2027, and interim periods within those annual periods. Early adoption is permitted. The Company is currently evaluating the impact of adopting the new ASU on its consolidated financial statements and related disclosures. In November 2025, the FASB issued ASU 2025-09, “Hedge Accounting Improvements” (“ASU 2025-09”). The new guidance provides targeted improvements to the hedge accounting guidance to primarily address cash flow hedging, but also impact certain fair value and net investment hedges, including (i) permitting designation of variable price components of forecasted purchases or sales of nonfinancial assets when clearly and closely related to the underlying asset, (ii) allowing groups of forecasted transactions with similar risk exposures (including those based on different interest rate indexes) to be hedged together, and (iii) introducing a model for cash flow hedges of forecasted interest payments on “choose-your-rate” debt instruments that permits a borrower to change the designated interest rate index and/or tenor without automatically discontinuing hedge accounting. ASU 2025-09 is effective for the Company for annual reporting periods beginning after December 15, 2027, and interim periods within those annual periods. Early adoption is permitted. The Company is currently evaluating the impact of adopting ASU 2025-09 on its consolidated financial statements and related disclosures.
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