Schedule I - Summary Of Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
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