v3.26.3
Investments - Schedule of Restricted Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Marketable Securities [Line Items]      
Restricted fixed maturity securities $ 1,092,890 $ 838,840  
Restricted cash and cash equivalents 40,391 40,225 $ 52,921
Restricted assets 1,133,281 879,065  
U.S. government and government agency      
Marketable Securities [Line Items]      
Restricted fixed maturity securities 25,007 60,237  
State and municipal      
Marketable Securities [Line Items]      
Restricted fixed maturity securities 140,502 73,453  
Commercial mortgage-backed securities      
Marketable Securities [Line Items]      
Restricted fixed maturity securities 124,975 100,934  
Residential mortgage-backed securities      
Marketable Securities [Line Items]      
Restricted fixed maturity securities 214,872 204,459  
Asset-backed securities      
Marketable Securities [Line Items]      
Restricted fixed maturity securities 148,309 95,908  
Corporate      
Marketable Securities [Line Items]      
Restricted fixed maturity securities $ 439,225 $ 303,849