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	NOTE 1. BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The condensed consolidated financial statements include the accounts of Heritage Insurance Holdings, Inc. (together with its subsidiaries, the “Company”). These statements have been prepared in accordance with generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Certain financial information that is normally included in annual consolidated financial statements prepared in accordance with GAAP, but that is not required for interim reporting purposes, has been omitted. In the opinion of the Company’s management, all material intercompany transactions and balances have been eliminated and all adjustments consisting of normal recurring accruals which are necessary for a fair statement of the financial condition and results of operations for the interim periods have been reflected. The accompanying interim condensed consolidated financial statements and related footnotes should be read in conjunction with the Company’s audited consolidated financial statements and related footnotes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 filed on March 12, 2026 (as amended, the “2025 Form 10-K”). Significant accounting policies The accounting policies of the Company are set forth in Note 1 to the condensed consolidated financial statements contained in the Company’s 2025 Form 10-K. Segment Information Nature of Operations The Company's results are reported as a single operating and reportable segment - residential property insurance. Operating segments represent components of an enterprise for which separate financial information is available that is regularly evaluated by the chief operating decision maker in determining how to allocate resources and in assessing performance. For more information regarding the Company's nature of operations, see the "Business Segment" section of Note 1 to the consolidated financial statements in the 2025 Form 10-K. Accounting Pronouncements not yet adopted The Company has documented the summary of its significant accounting policies in its Notes to the Audited Consolidated Financial Statements contained in the Company’s 2025 Form 10-K. There have been no material changes to the Company’s accounting policies since the filing of that report. The Company continually monitors new accounting pronouncements issued by the FASB and other standard-setting bodies. Management has evaluated accounting standards issued but not yet adopted as of June 30, 2026, including Accounting Standards Updates issued during 2026. Based on the nature of the Company's operations and investment activities, management does not currently expect any recently issued accounting standards to have a material effect on the Company's consolidated financial statements or related disclosures.

Basis of Presentation

The condensed consolidated financial statements include the accounts of Heritage Insurance Holdings, Inc. (together with its subsidiaries, the “Company”). These statements have been prepared in accordance with generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Certain financial information that is normally included in annual consolidated financial statements prepared in accordance with GAAP, but that is not required for interim reporting purposes, has been omitted. In the opinion of the Company’s management, all material intercompany transactions and balances have been eliminated and all adjustments consisting of normal recurring accruals which are necessary for a fair statement of the financial condition and results of operations for the interim periods have been reflected. The accompanying interim condensed consolidated financial statements and related footnotes should be read in conjunction with the Company’s audited consolidated financial statements and related footnotes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 filed on March 12, 2026 (as amended, the “2025 Form 10-K”).

The accounting policies of the Company are set forth in Note 1 to the condensed consolidated financial statements contained in the Company’s 2025 Form 10-K.

Segment Information

Nature of Operations

The Company's results are reported as a single operating and reportable segment - residential property insurance. Operating segments represent components of an enterprise for which separate financial information is available that is regularly evaluated by the chief operating decision maker in determining how to allocate resources and in assessing performance. For more information regarding the Company's nature of operations, see the "Business Segment" section of Note 1 to the consolidated financial statements in the 2025 Form 10-K.

Accounting Pronouncements not yet adopted

The Company has documented the summary of its significant accounting policies in its Notes to the Audited Consolidated Financial Statements contained in the Company’s 2025 Form 10-K. There have been no material changes to the Company’s accounting policies since the filing of that report.

The Company continually monitors new accounting pronouncements issued by the FASB and other standard-setting bodies. Management has evaluated accounting standards issued but not yet adopted as of June 30, 2026, including Accounting Standards Updates issued during 2026. Based on the nature of the Company's operations and investment activities, management does not currently expect any recently issued accounting standards to have a material effect on the Company's consolidated financial statements or related disclosures.