v3.24.1.u1
Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Changes in AOCI by component    
Beginning balance $ 6,608,634 $ 6,835,917
Ending balance 6,624,696 6,752,473
Cumulative Unrealized Gain (Loss) on Available-for- Sale Securities    
Changes in AOCI by component    
Beginning balance 15,352 20,955
OCI before reclassifications (1,291) (1,104)
Amounts reclassified from AOCI 0 0
Net period OCI (1,291) (1,104)
Ending balance $ 14,061 $ 19,851