Business and Basis of Presentation	6 Months Ended
Jun. 30, 2025
Accounting Policies [Abstract]
Business and Basis of Presentation	1 — Business and Basis of Presentation Hagerty, Inc. is a holding company and the sole managing member of The Hagerty Group, LLC ("THG"). Hagerty, Inc.'s sole material asset is its ownership in THG, through which all of its business is conducted. In these Notes to the Condensed Consolidated Financial Statements, the terms "Hagerty" and the "Company" refer to Hagerty, Inc. and its consolidated subsidiaries unless the context requires otherwise. In addition, the Company's insurance policyholders and paid Hagerty Drivers Club ("HDC") subscribers are collectively referred to as "Members". Description of Business — Hagerty is a market leader in providing insurance for collector cars and enthusiast vehicles. Through Hagerty's insurance model, the Company acts as a Managing General Agent ("MGA") by underwriting, selling, and servicing collector car and enthusiast vehicle insurance policies. The Company then reinsures approximately 80% of the risks written by its MGA subsidiaries through its wholly owned subsidiary, Hagerty Reinsurance Limited ("Hagerty Re"). In addition, Hagerty offers HDC memberships, which are primarily bundled with its insurance policies and give subscribers access to an array of products and services, including emergency roadside assistance, Hagerty Drivers Club Magazine, automotive enthusiast events, Hagerty's proprietary vehicle valuation tool, and special vehicle-related discounts. The Company also offers a marketplace to complement its insurance membership offerings where automotive enthusiasts can buy, sell, and finance collector cars and enthusiast vehicles. Basis of Presentation — The Condensed Consolidated Financial Statements are prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") and pursuant to the regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted from this report, as permitted by such rules and regulations. The Condensed Consolidated Financial Statements reflect all normal recurring adjustments and accruals that are, in the opinion of management, necessary for a fair statement of the Company's financial position and results of operations for the interim periods presented. These financial statements should be read in conjunction with the Consolidated Financial Statements and Notes thereto included in the Company's Annual Report on Form 10-K ("Annual Report") for the year ended December 31, 2024. The results of operations for the three and six months ended June 30, 2025 are not necessarily indicative of the results that may be expected for the year ending December 31, 2025. Principles of Consolidation — The Condensed Consolidated Financial Statements contain the accounts of Hagerty, Inc. and its majority-owned or controlled subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. As the sole managing member of THG, Hagerty operates and controls all of the business affairs of THG and has the sole voting interest in, and controls the management of, THG. Accordingly, Hagerty consolidates THG in its consolidated financial statements, resulting in a non-controlling interest related to the economic interest in THG held by other parties. As of June 30, 2025 and December 31, 2024, Hagerty, Inc.'s economic ownership of THG was 26.2% and 26.1%, respectively. The financial statements of THG are consolidated by the Company under the voting interest method in accordance with Accounting Standards Codification ("ASC") Topic 810, Consolidations ("ASC 810"). Non-controlling interest is presented separately on the Condensed Consolidated Statements of Operations, the Condensed Consolidated Statements of Comprehensive Income, the Condensed Consolidated Balance Sheets, and the Condensed Consolidated Statements of Changes in Temporary Equity and Stockholders' Equity.

Hagerty, Inc. is a holding company and the sole managing member of The Hagerty Group, LLC ("THG"). Hagerty, Inc.'s sole material asset is its ownership in THG, through which all of its business is conducted. In these Notes to the Condensed Consolidated Financial Statements, the terms "Hagerty" and the "Company" refer to Hagerty, Inc. and its consolidated subsidiaries unless the context requires otherwise. In addition, the Company's insurance policyholders and paid Hagerty Drivers Club ("HDC") subscribers are collectively referred to as "Members".

Description of Business — Hagerty is a market leader in providing insurance for collector cars and enthusiast vehicles. Through Hagerty's insurance model, the Company acts as a Managing General Agent ("MGA") by underwriting, selling, and servicing collector car and enthusiast vehicle insurance policies. The Company then reinsures approximately 80% of the risks written by its MGA subsidiaries through its wholly owned subsidiary, Hagerty Reinsurance Limited ("Hagerty Re"). In addition, Hagerty offers HDC memberships, which are primarily bundled with its insurance policies and give subscribers access to an array of products and services, including emergency roadside assistance, Hagerty Drivers Club Magazine, automotive enthusiast events, Hagerty's proprietary vehicle valuation tool, and special vehicle-related discounts. The Company also offers a marketplace to complement its insurance membership offerings where automotive enthusiasts can buy, sell, and finance collector cars and enthusiast vehicles.

Basis of Presentation — The Condensed Consolidated Financial Statements are prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") and pursuant to the regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted from this report, as permitted by such rules and regulations.

The Condensed Consolidated Financial Statements reflect all normal recurring adjustments and accruals that are, in the opinion of management, necessary for a fair statement of the Company's financial position and results of operations for the interim periods presented.

These financial statements should be read in conjunction with the Consolidated Financial Statements and Notes thereto included in the Company's Annual Report on Form 10-K ("Annual Report") for the year ended December 31, 2024. The results of operations for the three and six months ended June 30, 2025 are not necessarily indicative of the results that may be expected for the year ending December 31, 2025.

Principles of Consolidation — The Condensed Consolidated Financial Statements contain the accounts of Hagerty, Inc. and its majority-owned or controlled subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

As the sole managing member of THG, Hagerty operates and controls all of the business affairs of THG and has the sole voting interest in, and controls the management of, THG. Accordingly, Hagerty consolidates THG in its consolidated financial statements, resulting in a non-controlling interest related to the economic interest in THG held by other parties. As of June 30, 2025 and December 31, 2024, Hagerty, Inc.'s economic ownership of THG was 26.2% and 26.1%, respectively.

The financial statements of THG are consolidated by the Company under the voting interest method in accordance with Accounting Standards Codification ("ASC") Topic 810, Consolidations ("ASC 810"). Non-controlling interest is presented separately on the Condensed Consolidated Statements of Operations, the Condensed Consolidated Statements of Comprehensive Income, the Condensed Consolidated Balance Sheets, and the Condensed Consolidated Statements of Changes in Temporary Equity and Stockholders' Equity.