Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Obligations under Multi-Year Reinsurance Contracts The Company purchases reinsurance coverage to protect its capital and to limit its losses when certain major events occur. The Company’s reinsurance commitments generally run from June 1st of the current year to May 31st of the following year. Certain of the Company’s reinsurance agreements are for periods longer than one year. Amounts payable for coverage during the current June 1st to May 31st contract period are recorded as “Reinsurance Payable, net” in the Condensed Consolidated Balance Sheet. Effective March 26, 2021, UPCIC entered into a three-year reinsurance agreement with Cosaint Re Pte. Ltd., a reinsurance entity incorporated in Singapore that correspondingly issued notes in a Rule 144A offering to raise proceeds to collateralize its obligations under the reinsurance agreement. Amounts payable for coverage for the third year of the reinsurance agreement with Cosaint Re Pte. Ltd. are also recorded as “Reinsurance Payable, net.” Multi-year contract commitments for future years will be recorded at the commencement of the coverage period. Amounts payable for future reinsurance contract years that the Company is obligated to pay are: (1) $91.1 million in 2023; (2) $157.5 million in 2024; and (3) $66.3 million in 2025. Litigation Lawsuits and other legal proceedings are filed against the Company from time to time. Many of these legal proceedings involve claims under policies that the Company underwrites and reserves for as an insurer. The Company is also involved in various other legal proceedings and litigation unrelated to claims under the Company’s policies that arise in the ordinary course of business operations. Management believes that any liabilities that may arise as a result of these legal matters will not have a material adverse effect on the Company’s financial condition or results of operations. The Company contests liability and/or the amount of damages as appropriate in each pending matter. The Insurance Entities are obligated by regulation and by contract to commute their losses under reimbursement agreements with the FHCF. On June 1, 2023, the Insurance Entities will begin their respective commutation processes for their 2017-18 FHCF reimbursement contract years. The commutation process includes an insurer’s submitting a final proof of loss by June 1, 2023, verifying the amount of its paid losses previously reimbursed or to be reimbursed by the FHCF. The insurer also must submit an estimate of its covered losses on then-outstanding claims and an estimate of its covered IBNR losses. The FHCF’s procedure provides for the insurer and the FHCF to then discuss the estimates and seek to agree on the present value of the expected outstanding losses and IBNR. If these discussions do not result in an agreement, the determination will be made by a three-member panel of actuaries in accordance with a procedure set forth in the FHCF contract. It is premature to know whether the Insurance Entities and the FHCF will agree on final amounts during commutation, the amounts by which the parties’ estimates might differ, or whether the process will entail a final determination through the dispute resolution process. In accordance with applicable accounting guidance, the Company establishes an accrued liability for legal matters when those matters present loss contingencies that are both probable and estimable. Legal proceedings are subject to many uncertain factors that generally cannot be predicted with certainty, and the Company may be exposed to losses in excess of any amounts accrued. The Company currently estimates that the reasonably possible losses for legal proceedings, whether in excess of a related accrued liability or where there is no accrued liability, and for which the Company is able to estimate a possible loss, are immaterial. This represents management’s estimate of possible loss with respect to these matters and is based on currently available information. These estimates of possible loss do not represent our maximum loss exposure, and actual results may vary significantly from current estimates.