v3.26.1
Investments - Schedule of Available-for-Sale Investments (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Debt Securities, Available-for-sale [Line Items]    
Total fixed maturity securities, Cost or Amortized Cost $ 1,496,081  
Total fixed maturity securities, available-for-sale 1,439,293 $ 1,404,774
Total fixed maturity securities, available-for-sale    
Debt Securities, Available-for-sale [Line Items]    
Total fixed maturity securities, Cost or Amortized Cost 1,496,081 1,448,750
Total fixed maturity securities, Gross Unrealized Gains 4,749 10,079
Total fixed maturity securities, Gross Unrealized Losses (61,537) (54,055)
Total fixed maturity securities, available-for-sale 1,439,293 1,404,774
State and municipal    
Debt Securities, Available-for-sale [Line Items]    
Total fixed maturity securities, Cost or Amortized Cost 238,029 237,366
Total fixed maturity securities, Gross Unrealized Gains 1,151 1,164
Total fixed maturity securities, Gross Unrealized Losses (19,746) (19,053)
Total fixed maturity securities, available-for-sale 219,434 219,477
Residential mortgage-backed    
Debt Securities, Available-for-sale [Line Items]    
Total fixed maturity securities, Cost or Amortized Cost 478,058 483,074
Total fixed maturity securities, Gross Unrealized Gains 1,339 3,239
Total fixed maturity securities, Gross Unrealized Losses (16,669) (13,595)
Total fixed maturity securities, available-for-sale 462,728 472,718
Corporate    
Debt Securities, Available-for-sale [Line Items]    
Total fixed maturity securities, Cost or Amortized Cost 650,470 589,477
Total fixed maturity securities, Gross Unrealized Gains 2,171 5,461
Total fixed maturity securities, Gross Unrealized Losses (20,648) (17,184)
Total fixed maturity securities, available-for-sale 631,993 577,754
Commercial mortgage and asset-backed    
Debt Securities, Available-for-sale [Line Items]    
Total fixed maturity securities, Cost or Amortized Cost 115,878 124,507
Total fixed maturity securities, Gross Unrealized Gains 87 187
Total fixed maturity securities, Gross Unrealized Losses (4,337) (4,159)
Total fixed maturity securities, available-for-sale 111,628 120,535
U.S. Treasury securities and obligations guaranteed by the U.S. government    
Debt Securities, Available-for-sale [Line Items]    
Total fixed maturity securities, Cost or Amortized Cost 13,646 14,326
Total fixed maturity securities, Gross Unrealized Gains 1 28
Total fixed maturity securities, Gross Unrealized Losses (137) (64)
Total fixed maturity securities, available-for-sale $ 13,510 $ 14,290