Basis of Presentation and Significant Accounting Policies	6 Months Ended
Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Significant Accounting Policies	Basis of Presentation and Significant Accounting Policies Basis of Presentation The Company prepares its condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States of America ("U.S. GAAP"). In the opinion of management, the condensed consolidated financial statements reflect all adjustments of a normal recurring nature that are necessary for a fair statement of the results for the interim periods presented. Interim results are not necessarily indicative of results for a full year. The year-end condensed consolidated balance sheet data was derived from audited financial statements, however, these condensed consolidated financial statements do not include all of the disclosures required for complete annual financial statements and, accordingly, certain information, footnotes and disclosures normally included in annual financial statements, prepared in accordance with U.S. GAAP, have been condensed or omitted in accordance with Securities and Exchange Commission ("SEC") rules and regulations. The Company believes that the disclosures made are adequate to make the information not misleading. Accordingly, the condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, filed with the SEC on February 17, 2026. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and footnotes. Actual results could differ materially from those estimates. Significant estimates inherent in the preparation of the condensed consolidated financial statements include receivables allowances, depreciation of rental equipment, the recoverability of long-lived assets, useful lives and impairment of long-lived tangible and intangible assets including goodwill and trade name, valuation of acquired intangible assets, pension and postretirement benefits, valuation of stock-based compensation, reserves for litigation and other contingencies, accounting for income taxes, and valuation of an earnout receivable, among others. Principles of Consolidation The condensed consolidated financial statements include the accounts of Herc Holdings and its wholly owned subsidiaries. In the event that the Company is a primary beneficiary of a variable interest entity, the assets, liabilities and results of operations of the variable interest entity are included in the Company's condensed consolidated financial statements. The Company accounts for investments in joint ventures using the equity method when it has significant influence but not control and is not the primary beneficiary. All significant intercompany transactions have been eliminated in consolidation. Recently Issued Accounting Pronouncements and Disclosure Rules Adopted Improvements to Accounting for Internal-Use Software In September 2025, the FASB issued Accounting Standards Update No. 2025-06, "Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40)" ("ASU 2025-06"), which is intended to modernize the accounting for internal-use software costs by removing the previous "development stage" model and introducing a model that aligns with current software development methods, such as the agile approach. Capitalization of eligible costs begins when management has authorized and committed to funding the software project, it is probable the project will be completed and the software will be used for the function intended. The Company early adopted this guidance prospectively on January 1, 2026 and it did not have an impact on its financial position, results of operations, or cash flows. Not Yet Adopted Disaggregation of Income Statement Expenses In November 2024, the FASB issued Accounting Standards Update No. 2024-03, "Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40)" ("ASU 2024-03"), which is intended to improve the disclosures about a public entity's expenses and address requests from investors for more detailed information about the types of expenses in commonly presented expense captions. The guidance is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. ASU 2024-03 should be applied either on a prospective or retrospective basis. The Company is currently evaluating the potential impact of adopting this new guidance on its consolidated financial statements and related disclosures.

The Company prepares its condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States of America ("U.S. GAAP"). In the opinion of management, the condensed consolidated financial statements reflect all adjustments of a normal recurring nature that are necessary for a fair statement of the results for the interim periods presented. Interim results are not necessarily indicative of results for a full year. The year-end condensed consolidated balance sheet data was derived from audited financial statements, however, these condensed consolidated financial statements do not include all of the disclosures required for complete annual financial statements and, accordingly, certain information, footnotes and disclosures normally included in annual financial statements, prepared in accordance with U.S. GAAP, have been condensed or omitted in accordance with Securities and Exchange Commission ("SEC") rules and regulations. The Company believes that the disclosures made are adequate to make the information not misleading. Accordingly, the condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, filed with the SEC on February 17, 2026.

Significant estimates inherent in the preparation of the condensed consolidated financial statements include receivables allowances, depreciation of rental equipment, the recoverability of long-lived assets, useful lives and impairment of long-lived tangible and intangible assets including goodwill and trade name, valuation of acquired intangible assets, pension and postretirement benefits, valuation of stock-based compensation, reserves for litigation and other contingencies, accounting for income taxes, and valuation of an earnout receivable, among others.

The condensed consolidated financial statements include the accounts of Herc Holdings and its wholly owned subsidiaries. In the event that the Company is a primary beneficiary of a variable interest entity, the assets, liabilities and results of operations of the variable interest entity are included in the Company's condensed consolidated financial statements. The Company accounts for investments in joint ventures using the equity method when it has significant influence but not control and is not the primary beneficiary. All significant intercompany transactions have been eliminated in consolidation.

In September 2025, the FASB issued Accounting Standards Update No. 2025-06, "Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40)" ("ASU 2025-06"), which is intended to modernize the accounting for internal-use software costs by removing the previous "development stage" model and introducing a model that aligns with current software development methods, such as the agile approach. Capitalization of eligible costs begins when management has authorized and committed to funding the software project, it is probable the project will be completed and the software will be used for the function intended. The Company early adopted this guidance prospectively on January 1, 2026 and it did not have an impact on its financial position, results of operations, or cash flows.