Schedule I (Details) $ in Thousands	Dec. 31, 2022 USD ($)
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	$ 198,909	[1],[2]
Market Value	225,536	[2]
Amount at which shown in the Balance Sheet	225,536	[2],[3]
Fixed maturity securities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	53,775	[1]
Market Value	53,989
Amount at which shown in the Balance Sheet	53,989	[3]
Government obligations
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	4,329	[1]
Market Value	4,322
Amount at which shown in the Balance Sheet	4,322	[1],[3]
General obligations of U.S. states, territories and political subdivisions
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	8,360	[1]
Market Value	8,346
Amount at which shown in the Balance Sheet	8,346	[3]
Special revenue issuer obligations of U.S. states, territories and political subdivisions
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	22,508	[1]
Market Value	22,497
Amount at which shown in the Balance Sheet	22,497	[3]
Public utilities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	7,816	[1]
Market Value	7,713
Amount at which shown in the Balance Sheet	7,713	[3]
Corporate debt securities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	10,762	[1]
Market Value	11,111
Amount at which shown in the Balance Sheet	11,111	[3]
Equity securities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	25,278	[1]
Market Value	51,691
Amount at which shown in the Balance Sheet	51,691	[3]
Public utilities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	606	[1]
Market Value	760
Amount at which shown in the Balance Sheet	760	[3]
Banks, trusts and insurance companies
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	2,834	[1]
Market Value	5,761
Amount at which shown in the Balance Sheet	5,761	[3]
Industrial, miscellaneous and all other
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	20,160	[1]
Market Value	39,495
Amount at which shown in the Balance Sheet	39,495	[3]
Technology
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	1,678	[1]
Market Value	5,675
Amount at which shown in the Balance Sheet	5,675	[3]
Short-term investments
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	103,649	[1]
Market Value	103,649
Amount at which shown in the Balance Sheet	103,649	[3]
Other investments
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	16,207	[2]
Market Value	16,207	[2]
Amount at which shown in the Balance Sheet	16,207	[2],[3]
Total other investments
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	119,856	[1]
Market Value	119,856
Amount at which shown in the Balance Sheet	119,856	[3]
Other Affiliates
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Amount at which shown in the Balance Sheet	$ 2,161

[1] Fixed maturity securities are shown at amortized cost and equity securities are shown at original cost.

[2] The above summary of investments does not include investments in related parties accounted for under the equity method or the measurement alternative methods of accounting in the amount of $2,161.

[3] All fixed maturity securities presented are classified as available-for-sale and shown at estimated fair value. Equity securities are shown at fair value.