v3.26.1
Investments - Fixed Maturities with Unrealized Losses (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Investments [Abstract]    
Less than 12 months, fair value $ 398,947 $ 193,524
Less than 12 months, unrealized losses 5,308 1,689
More than 12 months, fair value 584,181 636,136
More than 12 months, unrealized losses 65,828 64,044
U.S. Treasury Securities and Obligations of U.S. Government Corporations and Agencies [Member]    
Investments [Abstract]    
Less than 12 months, fair value 11,713 9,503
Less than 12 months, unrealized losses 124 46
More than 12 months, fair value 72,339 76,506
More than 12 months, unrealized losses 6,230 5,654
Obligations of States and Political Subdivisions [Member]    
Investments [Abstract]    
Less than 12 months, fair value 34,840 34,778
Less than 12 months, unrealized losses 684 697
More than 12 months, fair value 279,504 287,717
More than 12 months, unrealized losses 41,419 40,487
Corporate Securities [Member]    
Investments [Abstract]    
Less than 12 months, fair value 118,836 47,139
Less than 12 months, unrealized losses 1,648 406
More than 12 months, fair value 160,395 183,026
More than 12 months, unrealized losses 9,319 8,995
Mortgage-Backed Securities [Member]    
Investments [Abstract]    
Less than 12 months, fair value 233,558 102,104
Less than 12 months, unrealized losses 2,852 540
More than 12 months, fair value 71,943 88,887
More than 12 months, unrealized losses $ 8,860 $ 8,908