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 September 30, 2024 Cost or Cost Gains Losses Credit Losses Value (in thousands) Fixed maturities: U.S. Governments $ 32,839 $ 16 $ (660 ) $ — $ 32,195 U.S. States, Territories, and Political Subdivisions 10,615 105 (678 ) — 10,042 Special revenue excluding mortgage/asset-backed securities 30,755 189 (2,884 ) — 28,060 Corporate and other 467,290 6,776 (11,080 ) (904 ) 462,082 Mortgage/asset-backed securities 355,276 3,604 (8,279 ) — 350,601 Total available-for-sale investments $ 896,775 $ 10,690 $ (23,581 ) $ (904 ) $ 882,980 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 September 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 September 30, 2024 December 31, 2023 Less Than 12 Months More Than 12 Months Total Fair Unrealized Fair Unrealized Fair Unrealized September 30, 2024 Value Losses Value Losses Value Losses (in thousands) Fixed maturity securities: U.S. Governments $ 16,037 $ (27 ) $ 15,122 $ (633 ) $ 31,159 $ (660 ) U.S. States, Territories, and Political Subdivisions 508 (8 ) 6,353 (670 ) 6,861 (678 ) Special revenue excluding mortgage/asset-backed securities 2,006 (282 ) 23,232 (2,602 ) 25,238 (2,884 ) Corporate and other 19,821 (243 ) 182,025 (10,837 ) 201,846 (11,080 ) Mortgage/asset-backed securities 24,195 (917 ) 98,170 (7,362 ) 122,365 (8,279 ) Total available-for-sale investments $ 62,567 $ (1,477 ) $ 324,902 $ (22,104 ) $ 387,469 $ (23,581 ) 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 two September 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 September 30, 2024 Amortized Fair Cost Value (in thousands) Due within one year $ 80,152 $ 78,731 Due after one year through five years 183,202 180,227 Due after five years through ten years 176,607 172,654 Due after ten years 101,538 100,767 Mortgage and asset-backed securities 355,276 350,601 $ 896,775 $ 882,980 Expected maturities may may Net investment income summary Net investment income is summarized as follows: Three Months Ended Nine Months Ended September 30, September 30, 2024 2023 2024 2023 (in thousands) (in thousands) Interest income $ 9,365 $ 5,952 $ 24,317 $ 16,468 Dividend income 220 211 675 602 Investment expense (177 ) (134 ) (486 ) (380 ) Net investment income $ 9,408 $ 6,029 $ 24,506 $ 16,690 Net realized and unrealized investment gains and losses The following table presents net realized and unrealized investment gains and losses: Three Months Ended Nine Months Ended September 30, September 30, 2024 2023 2024 2023 (in thousands) (in thousands) Realized gains: Gains on sales of fixed maturity securities $ 42 $ — $ 59 $ 65 Total realized gains 42 — 59 65 Realized losses: Losses on sales of fixed maturity securities (328 ) — (330 ) (32 ) Losses on sales of equity securities — — (1,204 ) — Total realized losses (328 ) — (1,534 ) (32 ) Net realized investment (losses) gains (286 ) — (1,475 ) 33 Change in allowance for credit losses 327 — — (667 ) Net unrealized gains (losses) on equity securities 2,434 (1,299 ) 7,052 608 Net unrealized gains (losses) on equity method investment 148 (77 ) (118 ) (77 ) Net unrealized gains on other investments 111 — 309 — Net realized and unrealized gains (losses) on investments $ 2,734 $ (1,376 ) $ 5,768 $ (103 ) 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 $3.2 million and insignificant for the three September 30, 2024 2023 Proceeds from the sale of fixed maturity securities were $5.4 and $9.8 million for the nine September 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 September 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 September 30, 2024 |