Organization, Consolidation and Presentation	12 Months Ended
Organization, Consolidation and Presentation	Dec. 31, 2020
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 personal 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). JIC was formed in strategic partnership with a subsidiary of Tokio Marine Kiln Group Limited (Kiln) on August 30, 2018. The Kiln 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 and FSIC's business, as well as JIC's personal residential business; Skyway Claims Services, LLC, which provides claims adjusting services to UPC, FSIC, ACIC and IIC; AmCo Holding Company, LLC (AmCo) and Family Security Holdings, LLC (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; Skyway Reinsurance Services, LLC, which provides reinsurance brokerage services for our insurance companies; Skyway Legal Services, LLC, which provides claims litigation services to our insurance companies; and Skyway Technology Services, LLC, which provides technological and distribution services to our insurance companies. Our primary products are homeowners' and commercial residential property 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 three states: Florida, South Carolina, and Texas. 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 reportable segment, property and casualty insurance policies. Our chief operating decision maker is our President, who makes decisions to allocate resources and assesses performance at the corporate level. (b)Consolidation and Presentation We prepare our consolidated 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, investments and goodwill. Except for the captions on our Consolidated Balance Sheets and Consolidated Statements of Comprehensive Income (Loss), 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 consolidated financial statements, eliminating intercompany balances and transactions during consolidation. (c) Impact of COVID-19 and Financial Status The COVID-19 pandemic has resulted in governments worldwide enacting emergency measures to combat the spread of the virus. These measures, which include the implementation of travel bans and restrictions, self-imposed quarantine periods, state and local shelter-in-place orders, business and government shutdowns and social distancing, have caused and continue to cause material disruption to businesses and economies globally. In addition, global equity markets have experienced and continue to experience significant volatility and weakness. We are committed to maintaining a stable and secure business for our employees, agents, customers and stockholders. During the second half of 2020, we were able to resume hiring activities, despite the limits on in-person interviews and on- boarding procedures resulting from COVID-related protocols. In addition, we have converted to virtual sales processes to enable our agents to continue their activities. We believe these activities, collectively, help ensure the health and safety of our employees through adherence to CDC, state and local government work guidelines. We have not experienced a material impact from COVID-19 on our business operations, financial position, liquidity or our ability to service our policyholders to date, with the exceptions of fluctuations in our investment portfolios due to volatility of the equity securities markets. We reduced the size of the equity securities portfolio during 2020, which has reduced the impact of fluctuations in the markets on our financial condition. The COVID-19 pandemic and resulting global disruptions did not have a material impact on our access to credit and capital markets needed to maintain sufficient liquidity for our continued operating needs during the year ended December 31, 2020. The scope, severity and longevity of any business shutdowns and economic disruptions as a result of the COVID-19 outbreak are highly uncertain and cannot be predicted at this time, as new information may continue to emerge concerning the actions governments may take to contain or mitigate the spread of the virus or address its impact on individuals, businesses and the economy. We did not incur material claims or significant disruptions to our business for the year ended December 31, 2020 as a result of COVID-19. At this time, it is not possible to reasonably estimate the extent of the impact of the economic uncertainties on our business, results of operations and financial condition in future periods, due to uncertainty regarding the duration of the COVID-19 pandemic, but we will continue to respond to the COVID-19 pandemic and take reasonable measures to make sure customers continue to be served without interruption.