v3.25.2
Supplemental Information about Changes to Accumulated Other Comprehensive Income - Schedule of Change in Balance by Component (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Increase (Decrease) in AOCI, Net of Tax        
Beginning balance $ 5,425,416 $ 5,039,161 $ 5,305,520 $ 4,486,803
Other comprehensive income (loss) before reclassifications, net of tax (21,418) 271,674 40,015 578,671
Reclassifications, net of tax 8,423 5,942 5,837 4,128
Other comprehensive income (loss) (12,995) 277,616 45,852 582,799
Ending balance 5,419,030 5,227,754 5,419,030 5,227,754
Total        
Increase (Decrease) in AOCI, Net of Tax        
Beginning balance (1,970,873) (2,467,236) (2,029,720) (2,772,419)
Ending balance (1,983,868) (2,189,620) (1,983,868) (2,189,620)
Available for Sale Assets        
Increase (Decrease) in AOCI, Net of Tax        
Beginning balance (1,152,648) (1,069,185) (1,319,618) (827,596)
Other comprehensive income (loss) before reclassifications, net of tax (107,155) (207,874) 62,454 (447,558)
Reclassifications, net of tax 8,376 5,846 5,737 3,941
Other comprehensive income (loss) (98,779) (202,028) 68,191 (443,617)
Ending balance (1,251,427) (1,271,213) (1,251,427) (1,271,213)
Future Policy Benefits        
Increase (Decrease) in AOCI, Net of Tax        
Beginning balance (819,131) (1,390,759) (709,042) (1,947,391)
Other comprehensive income (loss) before reclassifications, net of tax 72,862 479,042 (37,227) 1,035,674
Reclassifications, net of tax 0 0 0 0
Other comprehensive income (loss) 72,862 479,042 (37,227) 1,035,674
Ending balance (746,269) (911,717) (746,269) (911,717)
Foreign Exchange        
Increase (Decrease) in AOCI, Net of Tax        
Beginning balance (19,844) (5,232) (21,757) 4,719
Other comprehensive income (loss) before reclassifications, net of tax 12,875 506 14,788 (9,445)
Reclassifications, net of tax 0 0 0 0
Other comprehensive income (loss) 12,875 506 14,788 (9,445)
Ending balance (6,969) (4,726) (6,969) (4,726)
Pension Adjustments        
Increase (Decrease) in AOCI, Net of Tax        
Beginning balance 20,750 (2,060) 20,697 (2,151)
Other comprehensive income (loss) before reclassifications, net of tax 0 0 0 0
Reclassifications, net of tax 47 96 100 187
Other comprehensive income (loss) 47 96 100 187
Ending balance $ 20,797 $ (1,964) $ 20,797 $ (1,964)