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v3.26.1

Securities - Gross Unrealized Losses and Fair Value by Investment Category (Details) $ in Thousands | Mar. 31, 2026 USD ($) security | Dec. 31, 2025 USD ($) security
--- | --- | ---
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 105 | 54
Fair Value, Less than 12 Months | $ 848,160 | $ 482,669
Unrealized Losses, Less than 12 Months | $ (5,252) | $ (3,204)
Number of positions, 12 Months or More | security | 124 | 115
Fair value, 12 Months or More | $ 672,154 | $ 568,544
Unrealized Losses, 12 Months or More | $ (100,852) | $ (93,355)
Number of positions | security | 229 | 169
Fair Value | $ 1,520,314 | $ 1,051,213
Unrealized Losses | $ (106,104) | $ (96,559)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 11 | 0
Fair Value, Less than 12 Months | $ 61,411 | $ 0
Unrealized Losses, Less than 12 Months | $ (2,024) | $ 0
Number of positions, 12 Months or More | security | 217 | 228
Fair value, 12 Months or More | $ 865,399 | $ 959,977
Unrealized Losses, 12 Months or More | $ (75,832) | $ (68,264)
Number of positions | security | 228 | 228
Fair Value | $ 926,810 | $ 959,977
Unrealized Losses | $ (77,856) | $ (68,264)
Obligations of states and political subdivisions |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 41 | 13
Fair Value, Less than 12 Months | $ 61,680 | $ 19,454
Unrealized Losses, Less than 12 Months | $ (1,575) | $ (445)
Number of positions, 12 Months or More | security | 11 | 7
Fair value, 12 Months or More | $ 15,793 | $ 13,591
Unrealized Losses, 12 Months or More | $ (2,005) | $ (1,335)
Number of positions | security | 52 | 20
Fair Value | $ 77,473 | $ 33,045
Unrealized Losses | $ (3,580) | $ (1,780)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 7 | 0
Fair Value, Less than 12 Months | $ 17,311 | $ 0
Unrealized Losses, Less than 12 Months | $ (1,296) | $ 0
Number of positions, 12 Months or More | security | 117 | 124
Fair value, 12 Months or More | $ 227,737 | $ 248,044
Unrealized Losses, 12 Months or More | $ (30,288) | $ (29,516)
Number of positions | security | 124 | 124
Fair Value | $ 245,048 | $ 248,044
Unrealized Losses | $ (31,584) | $ (29,516)
Other debt securities |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 12 | 10
Fair Value, Less than 12 Months | $ 150,891 | $ 191,504
Unrealized Losses, Less than 12 Months | $ (293) | $ (1,347)
Number of positions, 12 Months or More | security | 10 | 8
Fair value, 12 Months or More | $ 68,947 | $ 14,571
Unrealized Losses, 12 Months or More | $ (1,993) | $ (967)
Number of positions | security | 22 | 18
Fair Value | $ 219,838 | $ 206,075
Unrealized Losses | $ (2,286) | $ (2,314)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 0 | 0
Fair Value, Less than 12 Months | $ 0 | $ 0
Unrealized Losses, Less than 12 Months | $ 0 | $ 0
Number of positions, 12 Months or More | security | 10 | 10
Fair value, 12 Months or More | $ 40,547 | $ 45,351
Unrealized Losses, 12 Months or More | $ (2,400) | $ (2,062)
Number of positions | security | 10 | 10
Fair Value | $ 40,547 | $ 45,351
Unrealized Losses | $ (2,400) | $ (2,062)
Agency mortgage-backed securities | Residential mortgage-backed securities: |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 18 | 8
Fair Value, Less than 12 Months | $ 408,243 | $ 135,320
Unrealized Losses, Less than 12 Months | $ (2,236) | $ (903)
Number of positions, 12 Months or More | security | 38 | 36
Fair value, 12 Months or More | $ 192,999 | $ 132,975
Unrealized Losses, 12 Months or More | $ (16,159) | $ (14,772)
Number of positions | security | 56 | 44
Fair Value | $ 601,242 | $ 268,295
Unrealized Losses | $ (18,395) | $ (15,675)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 4 | 0
Fair Value, Less than 12 Months | $ 44,100 | $ 0
Unrealized Losses, Less than 12 Months | $ (728) | $ 0
Number of positions, 12 Months or More | security | 62 | 66
Fair value, 12 Months or More | $ 256,832 | $ 313,963
Unrealized Losses, 12 Months or More | $ (11,713) | $ (10,030)
Number of positions | security | 66 | 66
Fair Value | $ 300,932 | $ 313,963
Unrealized Losses | $ (12,441) | $ (10,030)
Agency mortgage-backed securities | Commercial mortgage-backed securities: |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 8 | 9
Fair Value, Less than 12 Months | $ 46,283 | $ 71,188
Unrealized Losses, Less than 12 Months | $ (180) | $ (395)
Number of positions, 12 Months or More | security | 1 | 2
Fair value, 12 Months or More | $ 4,680 | $ 5,595
Unrealized Losses, 12 Months or More | $ (281) | $ (367)
Number of positions | security | 9 | 11
Fair Value | $ 50,963 | $ 76,783
Unrealized Losses | $ (461) | $ (762)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 0 | 0
Fair Value, Less than 12 Months | $ 0 | $ 0
Unrealized Losses, Less than 12 Months | $ 0 | $ 0
Number of positions, 12 Months or More | security | 1 | 1
Fair value, 12 Months or More | $ 14,823 | $ 14,879
Unrealized Losses, 12 Months or More | $ (2,079) | $ (2,059)
Number of positions | security | 1 | 1
Fair Value | $ 14,823 | $ 14,879
Unrealized Losses | $ (2,079) | $ (2,059)
Collateralized mortgage obligations | Residential mortgage-backed securities: |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 2 | 2
Fair Value, Less than 12 Months | $ 73,544 | $ 24,816
Unrealized Losses, Less than 12 Months | $ (333) | $ (58)
Number of positions, 12 Months or More | security | 38 | 37
Fair value, 12 Months or More | $ 287,019 | $ 299,606
Unrealized Losses, 12 Months or More | $ (62,251) | $ (57,850)
Number of positions | security | 40 | 39
Fair Value | $ 360,563 | $ 324,422
Unrealized Losses | $ (62,584) | $ (57,908)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 0 | 0
Fair Value, Less than 12 Months | $ 0 | $ 0
Unrealized Losses, Less than 12 Months | $ 0 | $ 0
Number of positions, 12 Months or More | security | 18 | 18
Fair value, 12 Months or More | $ 289,613 | $ 301,657
Unrealized Losses, 12 Months or More | $ (23,348) | $ (18,600)
Number of positions | security | 18 | 18
Fair Value | $ 289,613 | $ 301,657
Unrealized Losses | $ (23,348) | $ (18,600)
Collateralized mortgage obligations | Commercial mortgage-backed securities: |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 24 | 12
Fair Value, Less than 12 Months | $ 107,519 | $ 40,387
Unrealized Losses, Less than 12 Months | $ (635) | $ (56)
Number of positions, 12 Months or More | security | 26 | 25
Fair value, 12 Months or More | $ 102,716 | $ 102,206
Unrealized Losses, 12 Months or More | $ (18,163) | $ (18,064)
Number of positions | security | 50 | 37
Fair Value | $ 210,235 | $ 142,593
Unrealized Losses | $ (18,798) | $ (18,120)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 0 | 0
Fair Value, Less than 12 Months | $ 0 | $ 0
Unrealized Losses, Less than 12 Months | $ 0 | $ 0
Number of positions, 12 Months or More | security | 9 | 9
Fair value, 12 Months or More | $ 35,847 | $ 36,083
Unrealized Losses, 12 Months or More | $ (6,004) | $ (5,997)
Number of positions | security | 9 | 9
Fair Value | $ 35,847 | $ 36,083
Unrealized Losses | $ (6,004) | $ (5,997)

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