Organization, Consolidation and Presentation (Notes)	9 Months Ended
Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	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, four wholly-owned insurance subsidiaries, and one majority-owned insurance subsidiary. Our largest insurance subsidiary is United Property & Casualty Insurance Company (UPC), which was formed in Florida in 1999 and has operated continuously since that time. Our four other insurance subsidiaries are Family Security Insurance Company, Inc. (FSIC), acquired via merger on February 3, 2015, Interboro Insurance Company (IIC), acquired via merger on April 29, 2016, American Coastal Insurance Company (ACIC), acquired via merger on April 3, 2017, and Journey Insurance Company (JIC). See Note 4 in these Notes to Unaudited Condensed Consolidated Financial Statements for additional information regarding acquisitions. JIC was formed in strategic partnership with a subsidiary of Tokio Marine Kiln Group Limited on August 30, 2018. This subsidiary holds a noncontrolling interest in JIC. Our other subsidiaries include United Insurance Management L.C. (UIM), a managing general agent that manages substantially all aspects of UPC, FSIC and IIC's business; Skyway Claims Services, LLC, which provides claims adjusting services to UPC, FSIC and IIC; AmCo Holding Company (AmCo) and Family Security Holdings (FSH), which are holding company subsidiaries that consolidate their respective insurance companies; BlueLine Cayman Holdings (BlueLine) which reinsures portfolios of excess and surplus policies; UPC Re which provides a portion of the reinsurance protection purchased by our insurance subsidiaries when needed; and Skyway Reinsurance Services which provides reinsurance brokerage services for our insurance companies. Our primary product is homeowners' insurance, which we currently offer in 12 states, under authorization from the insurance regulatory authorities in each state. In addition, we write commercial residential insurance in the state of Florida. We are also licensed to write property and casualty insurance in an additional six states; however, we have not commenced writing in these states. We conduct our operations under one business segment. (b)Consolidation and Presentation We prepare our unaudited condensed consolidated interim financial statements in conformity with U.S. generally accepted accounting principles (GAAP). We have condensed or omitted certain information and footnote disclosures normally included in annual consolidated financial statements presented in accordance with GAAP. In management's opinion, the accompanying unaudited condensed consolidated financial statements reflect all adjustments, including normal recurring items, considered necessary for a fair presentation of interim periods. All intercompany balances and transactions have been eliminated. Our unaudited condensed consolidated interim financial statements and footnotes should be read in conjunction with our consolidated financial statements and footnotes in our Annual Report on Form 10-K for the year ended December 31, 2017. While preparing our unaudited condensed 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 unaudited condensed 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, investments and goodwill. Except for the captions on our Unaudited Condensed Consolidated Balance Sheets and Unaudited Condensed Consolidated Statements of Comprehensive Income, we generally use the term loss(es) to collectively refer to both loss and loss adjustment expenses. We reclassified certain amounts in the 2017 financial statements to conform to the 2018 presentation. These reclassifications had no impact on our results of operations or stockholders' equity, as previously reported. 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.

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, four wholly-owned insurance subsidiaries, and one majority-owned insurance subsidiary. Our largest insurance subsidiary is United Property & Casualty Insurance Company (UPC), which was formed in Florida in 1999 and has operated continuously since that time. Our four other insurance subsidiaries are Family Security Insurance Company, Inc. (FSIC), acquired via merger on February 3, 2015, Interboro Insurance Company (IIC), acquired via merger on April 29, 2016, American Coastal Insurance Company (ACIC), acquired via merger on April 3, 2017, and Journey Insurance Company (JIC). See Note 4 in these Notes to Unaudited Condensed Consolidated Financial Statements for additional information regarding acquisitions. JIC was formed in strategic partnership with a subsidiary of Tokio Marine Kiln Group Limited on August 30, 2018. This subsidiary holds a noncontrolling interest in JIC.

Our other subsidiaries include United Insurance Management L.C. (UIM), a managing general agent that manages

substantially all aspects of UPC, FSIC and IIC's business; Skyway Claims Services, LLC, which provides claims adjusting services to UPC, FSIC and IIC; AmCo Holding Company (AmCo) and Family Security Holdings (FSH), which are holding company subsidiaries that consolidate their respective insurance companies; BlueLine Cayman Holdings (BlueLine) which reinsures portfolios of excess and surplus policies; UPC Re which provides a portion of the reinsurance protection purchased by our insurance subsidiaries when needed; and Skyway Reinsurance Services which provides reinsurance brokerage services for our insurance companies.

Our primary product is homeowners' insurance, which we currently offer in 12 states, under authorization from the insurance regulatory authorities in each state. In addition, we write commercial residential insurance in the state of Florida. We are also licensed to write property and casualty insurance in an additional six states; however, we have not commenced writing in these states.

We conduct our operations under one business segment.

(b)Consolidation and Presentation

We prepare our unaudited condensed consolidated interim financial statements in conformity with U.S. generally accepted accounting principles (GAAP). We have condensed or omitted certain information and footnote disclosures normally included in annual consolidated financial statements presented in accordance with GAAP. In management's opinion, the accompanying unaudited condensed consolidated financial statements reflect all adjustments, including normal recurring items, considered necessary for a fair presentation of interim periods. All intercompany balances and transactions have been eliminated. Our unaudited condensed consolidated interim financial statements and footnotes should be read in conjunction with our consolidated financial statements and footnotes in our Annual Report on Form 10-K for the year ended December 31, 2017.

While preparing our unaudited condensed 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 unaudited condensed 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, investments and goodwill. Except for the captions on our Unaudited Condensed Consolidated Balance Sheets and Unaudited Condensed Consolidated Statements of Comprehensive Income, we generally use the term loss(es) to collectively refer to both loss and loss adjustment expenses.

We reclassified certain amounts in the 2017 financial statements to conform to the 2018 presentation. These reclassifications had no impact on our results of operations or stockholders' equity, as previously reported.

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.