Schedule I (Details) $ in Thousands	Dec. 31, 2023 USD ($)
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	$ 210,481	[1],[2]
Market Value	225,453	[2]
Amount at which shown in the Balance Sheet	225,453	[2],[3]
Fixed maturity securities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	63,106	[1]
Market Value	63,847
Amount at which shown in the Balance Sheet	63,847	[3]
Government obligations
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	2,220	[1]
Market Value	2,220
Amount at which shown in the Balance Sheet	2,220	[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	9,419	[1]
Market Value	9,459
Amount at which shown in the Balance Sheet	9,459	[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	18,514	[1]
Market Value	18,525
Amount at which shown in the Balance Sheet	18,525	[3]
Public utilities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	6,394	[1]
Market Value	6,462
Amount at which shown in the Balance Sheet	6,462	[3]
Corporate debt securities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	26,559	[1]
Market Value	27,181
Amount at which shown in the Balance Sheet	27,181	[3]
Equity securities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	22,981	[1]
Market Value	37,212
Amount at which shown in the Balance Sheet	37,212	[3]
Public utilities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	176	[1]
Market Value	301
Amount at which shown in the Balance Sheet	301	[3]
Banks, trusts and insurance companies
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	1,441	[1]
Market Value	2,385
Amount at which shown in the Balance Sheet	2,385	[3]
Industrial, miscellaneous and all other
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	19,738	[1]
Market Value	29,539
Amount at which shown in the Balance Sheet	29,539	[3]
Technology
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	1,626	[1]
Market Value	4,987
Amount at which shown in the Balance Sheet	4,987	[3]
Short-term investments
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	110,224	[1]
Market Value	110,224
Amount at which shown in the Balance Sheet	110,224	[3]
Other investments
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	14,170	[2]
Market Value	14,170	[2]
Amount at which shown in the Balance Sheet	14,170	[2],[3]
Total other investments
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	124,394	[1]
Market Value	124,394
Amount at which shown in the Balance Sheet	124,394	[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	$ 3,215

[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 $3,215.

[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.