Nature of Operations	3 Months Ended
Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations	Note 1 -- Nature of Operations HCI Group, Inc., together with its subsidiaries (“HCI” or the “Company”), is primarily engaged in the property and casualty insurance business through two Florida domiciled insurance companies, Homeowners Choice Property & Casualty Insurance Company, Inc. (“HCPCI”) and TypTap Insurance Company (“TypTap”). Both HCPCI and TypTap are authorized to underwrite various homeowners’ property and casualty insurance products and allied lines business in the state of Florida and in other states. The operations of both insurance subsidiaries are supported by HCI Group, Inc. and certain HCI subsidiaries. The Company emphasizes the use of internally developed technologies to collect and analyze claims and other supplemental data to generate savings and efficiency for the operations of the insurance subsidiaries. In addition, Greenleaf Capital, LLC, the Company’s real estate subsidiary, is primarily engaged in the business of owning and leasing real estate and operating marina facilities. Assumed Business Northeast Region In 2021, the Company began providing quota share reinsurance on all in-force, new and renewal policies issued by United Property & Casualty Insurance Company, an insurance subsidiary of United Insurance Holdings Corporation (“United”) in the states of Connecticut, New Jersey, Massachusetts, and Rhode Island (collectively “Northeast Region”). Through its insurance subsidiaries, the Company began renewing and/or replacing United policies in two states in December 2021 and a third state in January 2022. Southeast Region In February 2022, HCPCI entered into another reinsurance agreement with United where HCPCI provides 85% quota share reinsurance on all of United’s personal lines insurance business in the states of Georgia, North Carolina, and South Carolina (collectively “Southeast Region”) from December 31, 2021 through May 31, 2022. Under this agreement, HCPCI paid United a catastrophe allowance of 9% of premium and a provisional ceding commission of 25% of premium. That percentage could increase up to 32% depending on the direct loss ratio results from the reinsured business. The Company also entered into a renewal rights agreement with United in connection with the Southeast Region assumed business. Under the renewal rights agreement, the Company has the right to renew and/or replace United’s insurance policies at the end of their respective policy periods. The ability to replace policies is subject to regulatory approvals in the three states. The policy replacement date is June 1, 2022 or such other date as mutually agreed by both parties. In connection with the transaction, United agrees to not compete with the Company for the issuance of personal lines homeowners business in these three states until July 1, 2025. As part of the transaction, United will receive a renewal rights ceding commission of 6%, with a portion of the ceding commission paid up-front. See Note 7 -- “Intangible Assets, Net” for additional information.

Nature of Operations

3 Months Ended

Mar. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Note 1 -- Nature of Operations

HCI Group, Inc., together with its subsidiaries (“HCI” or the “Company”), is primarily engaged in the property and casualty insurance business through two Florida domiciled insurance companies, Homeowners Choice Property & Casualty Insurance Company, Inc. (“HCPCI”) and TypTap Insurance Company (“TypTap”). Both HCPCI and TypTap are authorized to underwrite various homeowners’ property and casualty insurance products and allied lines business in the state of Florida and in other states. The operations of both insurance subsidiaries are supported by HCI Group, Inc. and certain HCI subsidiaries. The Company emphasizes the use of internally developed technologies to collect and analyze claims and other supplemental data to generate savings and efficiency for the operations of the insurance subsidiaries. In addition, Greenleaf Capital, LLC, the Company’s real estate subsidiary, is primarily engaged in the business of owning and leasing real estate and operating marina facilities.

Assumed Business

Northeast Region

In 2021, the Company began providing quota share reinsurance on all in-force, new and renewal policies issued by United Property & Casualty Insurance Company, an insurance subsidiary of United Insurance Holdings Corporation (“United”) in the states of Connecticut, New Jersey, Massachusetts, and Rhode Island (collectively “Northeast Region”). Through its insurance subsidiaries, the Company began renewing and/or replacing United policies in two states in December 2021 and a third state in January 2022.

Southeast Region

In February 2022, HCPCI entered into another reinsurance agreement with United where HCPCI provides 85% quota share reinsurance on all of United’s personal lines insurance business in the states of Georgia, North Carolina, and South Carolina (collectively “Southeast Region”) from December 31, 2021 through May 31, 2022. Under this agreement, HCPCI paid United a catastrophe allowance of 9% of premium and a provisional ceding commission of 25% of premium. That percentage could increase up to 32% depending on the direct loss ratio results from the reinsured business.

The Company also entered into a renewal rights agreement with United in connection with the Southeast Region assumed business. Under the renewal rights agreement, the Company has the right to renew and/or replace United’s insurance policies at the end of their respective policy periods. The ability to replace policies is subject to regulatory approvals in the three states. The policy replacement date is June 1, 2022 or such other date as mutually agreed by both parties. In connection with the transaction, United agrees to not compete with the Company for the issuance of personal lines homeowners business in these three states until July 1, 2025. As part of the transaction, United will receive a renewal rights ceding commission of 6%, with a portion of the ceding commission paid up-front. See Note 7 -- “Intangible Assets, Net” for additional information.