v3.26.1
Investments - Schedule of Available-for-Sale Investments (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Debt Securities, Available-for-sale [Line Items]    
Total fixed maturity securities, Cost or Amortized Cost $ 1,489,938  
Total fixed maturity securities, available-for-sale 1,434,375 $ 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 1,489,938 1,448,750
Total fixed maturity securities, Gross Unrealized Gains 5,487 10,079
Total fixed maturity securities, Gross Unrealized Losses (61,050) (54,055)
Total fixed maturity securities, available-for-sale 1,434,375 1,404,774
State and municipal    
Debt Securities, Available-for-sale [Line Items]    
Total fixed maturity securities, Cost or Amortized Cost 244,051 237,366
Total fixed maturity securities, Gross Unrealized Gains 886 1,164
Total fixed maturity securities, Gross Unrealized Losses (20,482) (19,053)
Total fixed maturity securities, available-for-sale 224,455 219,477
Residential mortgage-backed    
Debt Securities, Available-for-sale [Line Items]    
Total fixed maturity securities, Cost or Amortized Cost 480,422 483,074
Total fixed maturity securities, Gross Unrealized Gains 1,785 3,239
Total fixed maturity securities, Gross Unrealized Losses (15,387) (13,595)
Total fixed maturity securities, available-for-sale 466,820 472,718
Corporate    
Debt Securities, Available-for-sale [Line Items]    
Total fixed maturity securities, Cost or Amortized Cost 624,521 589,477
Total fixed maturity securities, Gross Unrealized Gains 2,729 5,461
Total fixed maturity securities, Gross Unrealized Losses (20,811) (17,184)
Total fixed maturity securities, available-for-sale 606,439 577,754
Commercial mortgage and asset-backed    
Debt Securities, Available-for-sale [Line Items]    
Total fixed maturity securities, Cost or Amortized Cost 125,934 124,507
Total fixed maturity securities, Gross Unrealized Gains 81 187
Total fixed maturity securities, Gross Unrealized Losses (4,270) (4,159)
Total fixed maturity securities, available-for-sale 121,745 120,535
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 15,010 14,326
Total fixed maturity securities, Gross Unrealized Gains 6 28
Total fixed maturity securities, Gross Unrealized Losses (100) (64)
Total fixed maturity securities, available-for-sale $ 14,916 $ 14,290