v3.26.1
Investments - Schedule of Investments by Maturity (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Amortized Cost    
Due in one year or less $ 367,919 $ 292,846
Due after one through five years 1,562,455 1,713,613
Due after five through ten years 1,161,537 1,062,039
Due after ten years 61,814 6,793
Amortized Cost 3,346,838 3,190,174
Fair Value    
Due in one year or less 365,515 292,232
Due after one through five years 1,501,354 1,672,123
Due after five through ten years 1,140,487 1,053,628
Due after ten years 60,956 6,844
Fair Value 3,257,940 3,137,023
U.S. agency mortgage-backed securities    
Amortized Cost    
Other asset-backed securities 39,399 42,109
Amortized Cost 39,399 42,109
Fair Value    
Other asset-backed securities 38,907 42,071
Fair Value 38,907 42,071
Other asset-backed securities    
Amortized Cost    
Other asset-backed securities 153,714 72,774
Fair Value    
Other asset-backed securities $ 150,721 $ 70,125