Organization, Consolidation and Presentation	12 Months Ended
Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation	ORGANIZATION, CONSOLIDATION AND PRESENTATION (a)Business United Insurance Holdings Corp. 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 three insurance subsidiaries are Family Security Insurance Company (FSIC), acquired via merger on February 3, 2015, Interboro Insurance Company (IIC), acquired via merger on April 29, 2016, and American Coastal Insurance Company (ACIC), acquired via merger on April 3, 2017. See Note 4 in our Notes to Consolidated Financial Statements for additional information regarding these acquisitions. Our other subsidiaries include United Insurance Management L.C. (UIM), the managing general agent that manages substantially all aspects of UPC’s business; Skyway Claims Services, LLC (our claims adjusting subsidiary) that provides services to our insurance subsidiaries; AmCo Holding Company (AmCo) and Family Security Holdings (FSH) (holding company subsidiaries) that consolidate their respective insurance companies; BlueLine Cayman Holdings (a reinsurance subsidiary) that reinsurers a portfolio of E&S policies; UPC Re (a reinsurance subsidiary) that provides a portion of the reinsurance protection purchased by our insurance subsidiaries; and Skyway Reinsurance Services (a reinsurance brokerage subsidiary) that provides reinsurance brokerage services for our insurance companies. Our primary product is homeowners’ 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 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, 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. We reclassified certain amounts in the 2016 and 2015 financial statements to conform to the 2016 presentation. These reclassifications had no impact on our results of operations or stockholders’ equity, as previously reported.

ORGANIZATION, CONSOLIDATION AND PRESENTATION

(a)Business

United Insurance Holdings Corp. 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 three insurance subsidiaries are Family Security Insurance Company (FSIC), acquired via merger on February 3, 2015, Interboro Insurance Company (IIC), acquired via merger on April 29, 2016, and American Coastal Insurance Company (ACIC), acquired via merger on April 3, 2017. See Note 4 in our Notes to Consolidated Financial Statements for additional information regarding these acquisitions.

Our other subsidiaries include United Insurance Management L.C. (UIM), the managing general agent that manages substantially all aspects of UPC’s business; Skyway Claims Services, LLC (our claims adjusting subsidiary) that provides services to our insurance subsidiaries; AmCo Holding Company (AmCo) and Family Security Holdings (FSH) (holding company subsidiaries) that consolidate their respective insurance companies; BlueLine Cayman Holdings (a reinsurance subsidiary) that reinsurers a portfolio of E&S policies; UPC Re (a reinsurance subsidiary) that provides a portion of the reinsurance protection purchased by our insurance subsidiaries; and Skyway Reinsurance Services (a reinsurance brokerage subsidiary) that provides reinsurance brokerage services for our insurance companies.

Our primary product is homeowners’ 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 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, 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.

We reclassified certain amounts in the 2016 and 2015 financial statements to conform to the 2016 presentation. These reclassifications had no impact on our results of operations or stockholders’ equity, as previously reported.