Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal Actions Argo Group’s subsidiaries are parties to legal actions incidental to their business. As of June 30, 2024, management believes that the resolution of these matters would not materially affect our financial condition or results of operations. Federal Securities Class Action The Police & Fire Retirement System City of Detroit v. Argo Group International Holdings, Inc., et al., No. 22-cv-8971 (S.D.N.Y.) On October 20, 2022, a securities class action lawsuit was filed in the United States District Court for the Southern District of New York against the Company and certain of its current and former officers, alleging securities fraud violations under sections 10(b) and 20(a) of the Securities Exchange Act of 1934. Plaintiff alleges that from February 13, 2018 through August 9, 2022, the defendants made false and misleading statements concerning the Company’s reserves and underwriting standards. On January 18, 2023, U.S. District Judge Lewis A. Kaplan granted the Police and Fire Retirement System City of Detroit and the Oklahoma Law Enforcement Retirement System’s joint motion for appointment as lead plaintiff. On March 27, 2023, lead plaintiffs filed an amended class action complaint. On May 26, 2023, the defendants moved to dismiss the amended class action complaint. On July 13, 2023, lead plaintiffs filed an opposition to such motion, after which defendants filed a reply on August 14, 2023. Bermuda Appraisal Petitions In April 2023, appraisal petitions were filed in the Supreme Court of Bermuda (the “Court”) relating to the acquisition of the Company by Brookfield Reinsurance Ltd. for $30.00 per share (the “Transaction Price”) that closed on November 16, 2023. The petitions were filed by certain stockholders pursuant to Section 106(6) of the Bermuda Companies Act 1981 and are captioned Corbin Erisa Opportunity Fund, Ltd. v. Argo Group International Holdings, Ltd., Corbin Opportunity Fund, L.P. v. Argo Group International Holdings, Ltd., Fourworld Event Opportunities, LP v. Argo Group International Holdings, Ltd., Fourworld Global Opportunities Fund, Ltd. v. Argo Group International Holdings, Ltd., Fourworld Special Opportunities Fund, LLC v. Argo Group International Holdings, Ltd., and FW Deep Value Opportunities Fund I, LLC v. Argo Group International Holdings, Ltd. Section 106(6) permits a stockholder of a Bermuda corporation, such as the Company, to petition the Court for a determination of the fair value of the Company’s shares if they are not satisfied with the Transaction Price. On January 3, 2024, the Company filed a summons to stay the appraisal action pending judgment of the Judicial Committee of the Privy Council in the matter captioned “In re matter of Jardine Strategy Holdings Limited Case No: Civ/2022/14-31.” Hearings were held on July 9, 2024 and July 18, 2024. The Court is considering the stay application and will hand down a judgment in due course. The Company intends to continue to defend this matter vigorously. Contractual Commitments We have contractual commitments to invest up to $90.1 million related to our limited partnership investments at June 30, 2024, as further disclosed in Note 3, “Investments.” These commitments will be funded as required by the partnership agreements which can be called to be fulfilled at any time, not to exceed twelve years. Additionally, the Company has commitments to fund up to $43.3 million related to its investments in term loan and mortgage loan investments.