v3.25.2
Reinsurance (Effect Of Reinsurance And Retrocessional Reinsurance On Losses) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Effects of Reinsurance [Line Items]        
Net losses and loss adjustment expenses $ 1,288,034 $ 1,232,575 $ 2,542,699 $ 2,520,322
Underwriting [Member]        
Effects of Reinsurance [Line Items]        
Gross losses and loss adjustment expenses 1,659,756 1,577,820 3,333,265 3,271,667
Ceded losses and loss adjustment expenses (371,564) (345,224) (790,491) (751,391)
Net losses and loss adjustment expenses $ 1,288,192 $ 1,232,596 $ 2,542,774 $ 2,520,276