Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] | 2. The Company’s available‑for‑sale investments are summarized as follows: Gross Gross Allowance Amortized Unrealized Unrealized for Fair June 30, 2024 Cost or Cost Gains Losses Credit Losses Value (in thousands) Fixed maturities: U.S. Governments $ 34,818 $ 3 $ (1,204 ) $ — $ 33,617 U.S. States, Territories, and Political Subdivisions 10,624 28 (884 ) — 9,768 Special revenue excluding mortgage/asset-backed securities 30,941 127 (3,588 ) — 27,480 Corporate and other 357,193 884 (18,891 ) (1,230 ) 337,956 Mortgage/asset-backed securities 290,364 1,247 (13,294 ) — 278,317 Total available-for-sale investments $ 723,940 $ 2,289 $ (37,861 ) $ (1,230 ) $ 687,138 Gross Gross Allowance Amortized Unrealized Unrealized for Fair December 31, 2023 Cost or Cost Gains Losses Credit Losses Value (in thousands) Fixed maturities: U.S. Governments $ 40,836 $ — $ (1,416 ) $ — $ 39,420 U.S. States, Territories, and Political Subdivisions 10,641 100 (839 ) — 9,902 Special revenue excluding mortgage/asset-backed securities 32,513 147 (3,149 ) — 29,511 Corporate and other 316,590 1,750 (17,197 ) (904 ) 300,239 Mortgage/asset-backed securities 274,550 1,879 (11,702 ) — 264,727 Total available-for-sale investments $ 675,130 $ 3,876 $ (34,303 ) $ (904 ) $ 643,799 Security holdings in an unrealized loss position As of June 30, 2024 December 31, 2023 The aggregate fair value and gross unrealized losses of the Company’s investments aggregated by investment category and the length of time these individual securities have been in a continuous unrealized loss position as of June 30, 2024 December 31, 2023 Less Than 12 Months More Than 12 Months Total Fair Unrealized Fair Unrealized Fair Unrealized June 30, 2024 Value Losses Value Losses Value Losses (in thousands) Fixed maturity securities: U.S. Governments $ 15,221 $ (187 ) $ 17,992 $ (1,017 ) $ 33,213 $ (1,204 ) U.S. States, Territories, and Political Subdivisions 1,518 (14 ) 6,158 (870 ) 7,676 (884 ) Special revenue excluding mortgage/asset-backed securities 544 (6 ) 24,728 (3,582 ) 25,272 (3,588 ) Corporate and other 78,901 (1,274 ) 204,194 (17,617 ) 283,095 (18,891 ) Mortgage/asset-backed securities 65,282 (1,091 ) 110,184 (12,203 ) 175,466 (13,294 ) Total available-for-sale investments $ 161,466 $ (2,572 ) $ 363,256 $ (35,289 ) $ 524,722 $ (37,861 ) Less Than 12 Months More Than 12 Months Total Fair Unrealized Fair Unrealized Fair Unrealized December 31, 2023 Value Losses Value Losses Value Losses (in thousands) Fixed maturity securities: U.S. Governments $ 738 $ (1 ) $ 38,063 $ (1,415 ) $ 38,801 $ (1,416 ) U.S. States, Territories, and Political Subdivisions — — 6,196 (839 ) 6,196 (839 ) Special revenue excluding mortgage/asset-backed securities — — 26,736 (3,149 ) 26,736 (3,149 ) Corporate and other 28,872 (480 ) 204,034 (16,717 ) 232,906 (17,197 ) Mortgage/asset-backed securities 29,334 (245 ) 117,016 (11,457 ) 146,350 (11,702 ) Total available-for-sale investments $ 58,944 $ (726 ) $ 392,045 $ (33,577 ) $ 450,989 $ (34,303 ) The Company reviews all securities with unrealized losses on a quarterly basis to assess whether the decline in the securities fair value necessitates the recognition of an allowance for credit losses. The Company considers numerous factors in its review as described in Footnote 1 2023 10 The Company has recorded an immaterial allowance for credit losses for three June 30, 2024 not not not not Contractual maturities of available for sale fixed maturity securities The amortized cost and fair value of fixed maturity securities at June 30, 2024 Amortized Fair Cost Value (in thousands) Due within one year $ 67,474 $ 65,042 Due after one year through five years 174,285 166,790 Due after five years through ten years 142,476 132,119 Due after ten years 49,341 44,870 Mortgage and asset-backed securities 290,364 278,317 $ 723,940 $ 687,138 Expected maturities may may Net investment income summary Net investment income is summarized as follows: Three Months Ended Six Months Ended June 30, June 30, 2024 2023 2024 2023 (in thousands) (in thousands) Interest income $ 7,626 $ 5,456 $ 14,952 $ 10,516 Dividend income 257 210 455 391 Investment income (expense) 77 (125 ) (309 ) (246 ) Net investment income $ 7,960 $ 5,541 $ 15,098 $ 10,661 Net realized and unrealized investment gains and losses The following table presents net realized and unrealized investment gains and losses: Three Months Ended Six Months Ended June 30, June 30, 2024 2023 2024 2023 (in thousands) (in thousands) Realized gains: Gains on sales of fixed maturity securities $ 18 $ 37 $ 18 $ 65 Total realized gains 18 37 18 65 Realized losses: Losses on sales of fixed maturity securities — (29 ) (2 ) (32 ) Losses on sales of equity securities — — (1,204 ) — Total realized losses — (29 ) (1,206 ) (32 ) Net realized investment (losses) gains 18 8 (1,188 ) 33 Change in allowance for credit losses (327 ) (8 ) (327 ) (667 ) Net unrealized gains (losses) on equity securities 388 1,127 4,617 1,907 Net unrealized (losses) gains on equity method investment (245 ) — (266 ) — Net unrealized (losses) gains on other investments 198 — 198 — Net realized and unrealized gains on investments $ 32 $ 1,127 $ 3,034 $ 1,273 Realized gains and losses on disposition of investments are based on specific identification of the investments sold on the settlement date. Proceeds from the sale of fixed maturity securities were insignificant and $1.9 million for the three June 30, 2024 2023 Proceeds from the sale of fixed maturity securities were $2.2 and $7.1 million for the six June 30, 2024 2023 The Company places securities on statutory deposit with certain state agencies to retain the right to do business in those states. These securities are included in available‑for‑sale investments on the balance sheet. As of June 30, 2024 December 31, 2023 The Company has investments in limited partnerships, recorded in the Other Investments line of the Unaudited Condensed Consolidated Balance Sheets. These investments are measured at estimated fair value utilizing a net asset value per share (or its equivalent) as a practical expedient. As of June 30, 2024 |