v3.26.3
Investments - Schedule of Gross Unrealized Losses (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Fair Value    
Less than 12 Months of Fair value $ 1,428,218 $ 198,527
12 Months or Greater of Fair Value 86,017 108,681
Total, Fair Value 1,514,235 307,208
Gross Unrealized Losses    
Less than 12 Months of Gross Unrealized Losses (46,166) (885)
12 Months or Greater of Gross Unrealized Losses (10,217) (7,434)
Total, Gross Unrealized Losses (56,383) (8,319)
U.S. government and government agency    
Fair Value    
Less than 12 Months of Fair value 42,454 0
12 Months or Greater of Fair Value 0 0
Total, Fair Value 42,454 0
Gross Unrealized Losses    
Less than 12 Months of Gross Unrealized Losses (319) 0
12 Months or Greater of Gross Unrealized Losses 0 0
Total, Gross Unrealized Losses (319) 0
State and municipal    
Fair Value    
Less than 12 Months of Fair value 159,338 21,959
12 Months or Greater of Fair Value 38,232 43,392
Total, Fair Value 197,570 65,351
Gross Unrealized Losses    
Less than 12 Months of Gross Unrealized Losses (7,046) (122)
12 Months or Greater of Gross Unrealized Losses (4,091) (2,920)
Total, Gross Unrealized Losses (11,137) (3,042)
Commercial mortgage-backed securities    
Fair Value    
Less than 12 Months of Fair value 127,095 63,162
12 Months or Greater of Fair Value 6,425 7,055
Total, Fair Value 133,520 70,217
Gross Unrealized Losses    
Less than 12 Months of Gross Unrealized Losses (5,056) (312)
12 Months or Greater of Gross Unrealized Losses (779) (550)
Total, Gross Unrealized Losses (5,835) (862)
Residential mortgage-backed securities    
Fair Value    
Less than 12 Months of Fair value 277,611 40,180
12 Months or Greater of Fair Value 22,385 29,284
Total, Fair Value 299,996 69,464
Gross Unrealized Losses    
Less than 12 Months of Gross Unrealized Losses (9,818) (164)
12 Months or Greater of Gross Unrealized Losses (4,417) (3,251)
Total, Gross Unrealized Losses (14,235) (3,415)
Asset-backed securities    
Fair Value    
Less than 12 Months of Fair value 177,666 26,304
12 Months or Greater of Fair Value 4,314 5,627
Total, Fair Value 181,980 31,931
Gross Unrealized Losses    
Less than 12 Months of Gross Unrealized Losses (4,312) (168)
12 Months or Greater of Gross Unrealized Losses (266) (122)
Total, Gross Unrealized Losses (4,578) (290)
Corporate    
Fair Value    
Less than 12 Months of Fair value 644,054 46,922
12 Months or Greater of Fair Value 14,661 23,323
Total, Fair Value 658,715 70,245
Gross Unrealized Losses    
Less than 12 Months of Gross Unrealized Losses (19,615) (119)
12 Months or Greater of Gross Unrealized Losses (664) (591)
Total, Gross Unrealized Losses $ (20,279) $ (710)