XML 46 R35.htm IDEA: XBRL DOCUMENT v3.25.1
Debt Securities (Schedule Of Fair Value And Unrealized Losses Of Securities) (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 2,380,293 $ 4,123,091
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (35,744) (89,623)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 2,870,263 2,850,214
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (446,663) (501,899)
Debt Securities, Available-for-sale, Unrealized Loss Position 5,250,556 6,973,305
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (482,407) (591,522)
U.S. Treasury and agencies    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 99,739 185,042
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (1,010) (2,770)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 762,609 794,521
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (56,844) (71,077)
Debt Securities, Available-for-sale, Unrealized Loss Position 862,348 979,563
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (57,854) (73,847)
Obligations of states and political subdivisions    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 485,272 539,440
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (9,118) (8,036)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 269,731 224,973
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (23,946) (24,225)
Debt Securities, Available-for-sale, Unrealized Loss Position 755,003 764,413
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (33,064) (32,261)
Mortgage-backed securities and collateralized mortgage obligations    
Debt Securities, Available-for-sale [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 1,795,282 3,398,609
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (25,616) (78,817)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 1,837,923 1,830,720
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (365,873) (406,597)
Debt Securities, Available-for-sale, Unrealized Loss Position 3,633,205 5,229,329
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss $ (391,489) $ (485,414)