v3.26.1
Investments - Schedule of Analysis of Investment Operations (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Net Investment Income [Line Items]        
Investment income, gross $ 301,360 $ 288,902 $ 597,995 $ 575,993
Less investment expense (7,540) (6,733) (14,351) (13,210)
Net investment income $ 293,820 282,169 $ 583,644 562,783
Percentage change in investment income, gross 4.00%   4.00%  
Percentage change in investment expense 12.00%   9.00%  
Percentage change in net investment income 4.00%   4.00%  
Fixed maturities available for sale        
Net Investment Income [Line Items]        
Investment income, gross $ 248,601 245,205 $ 494,420 487,415
Percentage change in investment income, gross 1.00%   1.00%  
Policy loans        
Net Investment Income [Line Items]        
Investment income, gross $ 14,656 13,850 $ 28,937 27,508
Percentage change in investment income, gross 6.00%   5.00%  
Mortgage loans        
Net Investment Income [Line Items]        
Investment income, gross $ 8,274 5,350 $ 15,860 12,018
Percentage change in investment income, gross 55.00%   32.00%  
Other long-term investments        
Net Investment Income [Line Items]        
Investment income, gross $ 27,279 21,438 $ 53,359 44,517
Percentage change in investment income, gross 27.00%   20.00%  
Short-term investments        
Net Investment Income [Line Items]        
Investment income, gross $ 2,550 3,059 $ 5,419 4,535
Percentage change in investment income, gross    
Fair value option        
Net Investment Income [Line Items]        
Net investment income $ 21,900 $ 18,100 $ 43,100 $ 37,300