Organization, Consolidation and Presentation	9 Months Ended
Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation	ORGANIZATION, CONSOLIDATION AND PRESENTATION (a)Business United Insurance Holdings Corp. (referred to in this document as we, our, us, the Company or UPC Insurance) is a property and casualty insurance holding company that sources, writes, and services residential and commercial property and casualty insurance policies using a network of agents and four wholly owned insurance subsidiaries. Our primary insurance subsidiary is United Property & Casualty Insurance Company (UPC), which was formed in Florida in 1999 and has operated continuously since that time. Our other subsidiaries include United Insurance Management, L.C. (UIM), (our managing general agent) that manages substantially all aspects of UPC's business; Skyway Claims Services, LLC (our claims adjusting affiliate) that provides services to our insurance affiliates; UPC Re (our reinsurance affiliate) that provides a portion of the reinsurance protection purchased by our insurance affiliates, Family Security Holdings, LLC (FSH), Family Security Insurance Company, Inc. (FSIC), Interboro Insurance Company (IIC), AmCo Holding Company (AmCo), American Coastal Insurance Company (ACIC) and BlueLine Cayman Holdings (BLUE). On April 29, 2016, we acquired IIC via merger. On April 3, 2017, we merged with AmCo and its two wholly owned subsidiaries, ACIC and BLUE. See Note 4 in our Notes to Unaudited Consolidated Financial Statements for additional information regarding these acquisitions. Our primary products are homeowners' and commercial insurance, which we currently offer in Connecticut, Florida, Georgia, Hawaii, Louisiana, Massachusetts, New Jersey, New York, North Carolina, Rhode Island, South Carolina, and Texas, under authorization from the insurance regulatory authorities in each state. We are also licensed to write property and casualty insurance in Alabama, Delaware, Maryland, Mississippi, New Hampshire, and Virginia; however, we have not commenced writing in these states. We conduct our operations under one business segment. (b)Consolidation and Presentation We prepare our financial statements in conformity with U.S. generally accepted accounting principles (GAAP). While preparing our consolidated financial statements, we make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the consolidated financial statements, as well as reported amounts of revenues and expenses during the reporting period. Accordingly, actual results could differ from those estimates. Reported amounts that require us to make extensive use of estimates include our reserves for unpaid losses and loss adjustment expenses, reinsurance recoverable, deferred policy acquisition costs, investments and goodwill. Except for the captions on our Unaudited Consolidated Balance Sheets and Unaudited Consolidated Statements of Comprehensive Income, we generally use the term loss(es) to collectively refer to both loss and loss adjustment expenses. We include all of our subsidiaries in our unaudited consolidated financial statements, eliminating all significant intercompany balances and transactions during consolidation. We prepared the accompanying Unaudited Consolidated Balance Sheet as of September 30, 2017, with the Audited Consolidated Balance Sheet amounts as of December 31, 2016, presented for comparative purposes, and the related Unaudited Consolidated Statements of Comprehensive Income and Statements of Cash Flows in accordance with the instructions for Form 10-Q and Article 10-01 of Regulation S-X. In compliance with those instructions, we have omitted certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with GAAP, though management believes the disclosures made herein are sufficient to ensure that the information presented is not misleading. Our results of operations and our cash flows as of the end of the interim periods reported herein do not necessarily indicate our results for the remainder of the year or for any other future period. Management believes our unaudited consolidated interim financial statements include all the normal recurring adjustments necessary to fairly present our Unaudited Consolidated Balance Sheet as of September 30, 2017, our Unaudited Consolidated Statements of Comprehensive Income and our Unaudited Consolidated Statements of Cash Flows for all periods presented. Our unaudited consolidated interim financial statements and footnotes should be read in conjunction with our consolidated financial statements and footnotes in our Annual Report filed on Form 10-K for the year ended December 31, 2016.

ORGANIZATION, CONSOLIDATION AND PRESENTATION

(a)Business

United Insurance Holdings Corp. (referred to in this document as we, our, us, the Company or UPC Insurance) is a property and casualty insurance holding company that sources, writes, and services residential and commercial property and casualty insurance policies using a network of agents and four wholly owned insurance subsidiaries. Our primary insurance subsidiary is United Property & Casualty Insurance Company (UPC), which was formed in Florida in 1999 and has operated continuously since that time. Our other subsidiaries include United Insurance Management, L.C. (UIM), (our managing general agent) that manages substantially all aspects of UPC's business; Skyway Claims Services, LLC (our claims adjusting affiliate) that provides services to our insurance affiliates; UPC Re (our reinsurance affiliate) that provides a portion of the reinsurance protection purchased by our insurance affiliates, Family Security Holdings, LLC (FSH), Family Security Insurance Company, Inc. (FSIC), Interboro Insurance Company (IIC), AmCo Holding Company (AmCo), American Coastal Insurance Company (ACIC) and BlueLine Cayman Holdings (BLUE).

On April 29, 2016, we acquired IIC via merger. On April 3, 2017, we merged with AmCo and its two wholly owned subsidiaries, ACIC and BLUE. See Note 4 in our Notes to Unaudited Consolidated Financial Statements for additional information regarding these acquisitions.

Our primary products are homeowners' and commercial insurance, which we currently offer in Connecticut, Florida, Georgia, Hawaii, Louisiana, Massachusetts, New Jersey, New York, North Carolina, Rhode Island, South Carolina, and Texas, under authorization from the insurance regulatory authorities in each state. We are also licensed to write property and casualty insurance in Alabama, Delaware, Maryland, Mississippi, New Hampshire, and Virginia; however, we have not commenced writing in these states.

We conduct our operations under one business segment.

(b)Consolidation and Presentation

We prepare our financial statements in conformity with U.S. generally accepted accounting principles (GAAP). While preparing our consolidated financial statements, we make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the consolidated financial statements, as well as reported amounts of revenues and expenses during the reporting period. Accordingly, actual results could differ from those estimates. Reported amounts that require us to make extensive use of estimates include our reserves for unpaid losses and loss adjustment expenses, reinsurance recoverable, deferred policy acquisition costs, investments and goodwill. Except for the captions on our Unaudited Consolidated Balance Sheets and Unaudited Consolidated Statements of Comprehensive Income, we generally use the term loss(es) to collectively refer to both loss and loss adjustment expenses.

We include all of our subsidiaries in our unaudited consolidated financial statements, eliminating all significant intercompany balances and transactions during consolidation.

We prepared the accompanying Unaudited Consolidated Balance Sheet as of September 30, 2017, with the Audited Consolidated Balance Sheet amounts as of December 31, 2016, presented for comparative purposes, and the related Unaudited Consolidated Statements of Comprehensive Income and Statements of Cash Flows in accordance with the instructions for Form 10-Q and Article 10-01 of Regulation S-X. In compliance with those instructions, we have omitted certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with GAAP, though management believes the disclosures made herein are sufficient to ensure that the information presented is not misleading.

Our results of operations and our cash flows as of the end of the interim periods reported herein do not necessarily indicate our results for the remainder of the year or for any other future period.

Management believes our unaudited consolidated interim financial statements include all the normal recurring adjustments necessary to fairly present our Unaudited Consolidated Balance Sheet as of September 30, 2017, our Unaudited Consolidated Statements of Comprehensive Income and our Unaudited Consolidated Statements of Cash Flows for all periods presented. Our unaudited consolidated interim financial statements and footnotes should be read in conjunction with our consolidated financial statements and footnotes in our Annual Report filed on Form 10-K for the year ended December 31, 2016.