XML 56 R45.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Securities, AFS Securities in Continuous Unrealized Loss Position (Details)
$ in Thousands
Mar. 31, 2024
USD ($)
Position
Dec. 31, 2023
USD ($)
Position
Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 months $ 12,628 $ 2,765
12 months or longer 1,392,279 1,422,826
Total 1,404,907 1,425,591
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months (62) (82)
12 months or longer (189,513) (184,185)
Total $ (189,575) $ (184,267)
Unrealized Loss Position, Number of Positions [Abstract]    
Less than 12 months | Position 12 10
12 months or longer | Position 382 378
Total | Position 394 388
AIR on AFS debt securities $ 3,900 $ 3,900
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Other Assets Other Assets
U.S. Treasury [Member]    
Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 months $ 0 $ 0
12 months or longer 124,683 125,024
Total 124,683 125,024
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months 0 0
12 months or longer (8,759) (8,278)
Total $ (8,759) $ (8,278)
Unrealized Loss Position, Number of Positions [Abstract]    
Less than 12 months | Position 0 0
12 months or longer | Position 8 8
Total | Position 8 8
Federal Agency [Member]    
Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 months $ 0 $ 0
12 months or longer 213,304 214,740
Total 213,304 214,740
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months 0 0
12 months or longer (35,071) (33,644)
Total $ (35,071) $ (33,644)
Unrealized Loss Position, Number of Positions [Abstract]    
Less than 12 months | Position 0 0
12 months or longer | Position 16 16
Total | Position 16 16
State & Municipal [Member]    
Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 months $ 0 $ 0
12 months or longer 85,266 85,528
Total 85,266 85,528
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months 0 0
12 months or longer (10,022) (9,956)
Total $ (10,022) $ (9,956)
Unrealized Loss Position, Number of Positions [Abstract]    
Less than 12 months | Position 0 0
12 months or longer | Position 66 66
Total | Position 66 66
Mortgage-Backed [Member]    
Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 months $ 136 $ 53
12 months or longer 404,618 421,259
Total 404,754 421,312
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months (1) (1)
12 months or longer (52,980) (51,565)
Total $ (52,981) $ (51,566)
Unrealized Loss Position, Number of Positions [Abstract]    
Less than 12 months | Position 9 7
12 months or longer | Position 158 156
Total | Position 167 163
Collateralized Mortgage Obligations [Member]    
Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 months $ 11,033 $ 1,333
12 months or longer 523,989 536,678
Total 535,022 538,011
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months (59) (6)
12 months or longer (76,110) (73,351)
Total $ (76,169) $ (73,357)
Unrealized Loss Position, Number of Positions [Abstract]    
Less than 12 months | Position 2 2
12 months or longer | Position 120 118
Total | Position 122 120
Corporate [Member]    
Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 months $ 1,459 $ 1,379
12 months or longer 40,419 39,597
Total 41,878 40,976
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months (2) (75)
12 months or longer (6,571) (7,391)
Total $ (6,573) $ (7,466)
Unrealized Loss Position, Number of Positions [Abstract]    
Less than 12 months | Position 1 1
12 months or longer | Position 14 14
Total | Position 15 15