v3.25.2
Securities, AFS Securities in Continuous Unrealized Loss Position (Details)
$ in Thousands
Jun. 30, 2025
USD ($)
Position
Dec. 31, 2024
USD ($)
Position
Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 months $ 148,131 $ 195,884
12 months or longer 1,264,267 1,291,001
Total 1,412,398 1,486,885
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months (707) (2,515)
12 months or longer (124,687) (162,371)
Total $ (125,394) $ (164,886)
Unrealized Loss Position, Number of Positions [Abstract]    
Less than 12 months | Position 20 32
12 months or longer | Position 357 369
Total | Position 377 401
AIR on AFS debt securities $ 5,100 $ 4,400
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 95,173 92,737
Total 95,173 92,737
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months 0 0
12 months or longer (3,920) (6,107)
Total $ (3,920) $ (6,107)
Unrealized Loss Position, Number of Positions [Abstract]    
Less than 12 months | Position 0 0
12 months or longer | Position 5 5
Total | Position 5 5
Federal Agency [Member]    
Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 months $ 0 $ 0
12 months or longer 226,622 218,517
Total 226,622 218,517
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months 0 0
12 months or longer (21,708) (29,831)
Total $ (21,708) $ (29,831)
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 $ 759
12 months or longer 87,272 86,731
Total 87,272 87,490
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months 0 (4)
12 months or longer (5,524) (7,963)
Total $ (5,524) $ (7,967)
Unrealized Loss Position, Number of Positions [Abstract]    
Less than 12 months | Position 0 1
12 months or longer | Position 65 66
Total | Position 65 67
Mortgage-Backed [Member]    
Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 months $ 34,785 $ 95,153
12 months or longer 350,950 368,589
Total 385,735 463,742
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months (218) (1,374)
12 months or longer (34,365) (46,625)
Total $ (34,583) $ (47,999)
Unrealized Loss Position, Number of Positions [Abstract]    
Less than 12 months | Position 7 16
12 months or longer | Position 146 152
Total | Position 153 168
Collateralized Mortgage Obligations [Member]    
Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 months $ 113,346 $ 98,494
12 months or longer 468,427 480,891
Total 581,773 579,385
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months (489) (1,128)
12 months or longer (56,495) (68,386)
Total $ (56,984) $ (69,514)
Unrealized Loss Position, Number of Positions [Abstract]    
Less than 12 months | Position 13 14
12 months or longer | Position 112 116
Total | Position 125 130
Corporate [Member]    
Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 months $ 0 $ 1,478
12 months or longer 35,823 43,536
Total 35,823 45,014
Unrealized Loss Position, Unrealized Losses [Abstract]    
Less than 12 months 0 (9)
12 months or longer (2,675) (3,459)
Total $ (2,675) $ (3,468)
Unrealized Loss Position, Number of Positions [Abstract]    
Less than 12 months | Position 0 1
12 months or longer | Position 13 14
Total | Position 13 15