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Schedule I - Summary Of Investments (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Cost | $ 317,882 |
Investments | 312,739 |
Short-term investments, at cost (approximates fair value) | 289,712 | $ 341,685
Other Investments | 28,294 | 18,317
Available-for-sale Securities | 157,020 | 135,224
Investments | 312,915 | 354,051
Municipal Bonds [Member] |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Short-term investments, at cost (approximates fair value) | 14,646 | 9,394
Available-for-sale Securities | 14,083 | 8,711
Corporate Debt Securities [Member] |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Short-term investments, at cost (approximates fair value) | 92,990 | 92,694
Available-for-sale Securities | 89,192 | 87,991
Residential Mortgage-Backed Securities [Member] |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Short-term investments, at cost (approximates fair value) | 2,475 | 0
Available-for-sale Securities | 2,446 | 0
Collateralized Debt Obligations [Member] |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Short-term investments, at cost (approximates fair value) | 3,131 | 0
Available-for-sale Securities | 3,142 | 0
Asset-backed Securities [Member] |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Short-term investments, at cost (approximates fair value) | 5,049 | 0
Available-for-sale Securities | 5,061 | 0
Short-term Investments [Member] |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Short-term investments, at cost (approximates fair value) | 127,588 | 200,506
Available-for-sale Securities | 127,601 | 200,510
U S Government Obligations [Member] |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Short-term investments, at cost (approximates fair value) | 41,706 |
Available-for-sale Securities | 40,995 |
US Government Debt Securities [Member] |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Short-term investments, at cost (approximates fair value) | 41,706 | 39,091
Available-for-sale Securities | 40,995 | 38,522
ShortTermInvestmentsMember, including Pledged |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Short-term investments, at cost (approximates fair value) | 127,588 |
Available-for-sale Securities | 127,601 |
Corporate Obligations, Excluding Related Party Investments |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Short-term investments, at cost (approximates fair value) | 92,990 |
Available-for-sale Securities | 89,192 |
Other Investments [Member] |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Short-term investments, at cost (approximates fair value) | 28,170 |
Available-for-sale Securities | 7,499 |
Other Investments [Member] | Fixed Income Funds |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Available-for-sale Securities | 28,118 |
Commercial Mortgage Backed Securities [Member] |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Short-term investments, at cost (approximates fair value) | 2,127 |
Available-for-sale Securities | 2,101 | $ 0
Fair Value Amount, Excluding Related Party Investments [Domain] |  |
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items] |  |
Investments | $ 292,120 |

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