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Securities - Gross Unrealized Losses and Fair Value by Investment Category (Details) $ in Thousands | Dec. 31, 2024 USD ($) security | Dec. 31, 2023 USD ($) security
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Available for Sale: |  |
Number of positions, Less than 12 Months | security | 16 | 6
Fair Value, Less than 12 Months | $ 95,216 | $ 6,819
Unrealized Losses, Less than 12 Months | $ (1,120) | $ (222)
Number of positions, 12 Months or More | security | 122 | 127
Fair Value, 12 Months or More | $ 606,628 | $ 685,774
Unrealized Losses, 12 Months or More | $ (137,488) | $ (139,572)
Number of positions | security | 138 | 133
Fair Value | $ 701,844 | $ 692,593
Unrealized Losses | $ (138,608) | $ (139,794)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 0 | 2
Fair Value, Less than 12 Months | $ 0 | $ 2,807
Unrealized Losses, Less than 12 Months | $ 0 | $ (25)
Number of positions, 12 Months or More | security | 235 | 234
Fair Value, 12 Months or More | $ 1,000,874 | $ 1,117,285
Unrealized Losses, 12 Months or More | $ (123,603) | $ (99,715)
Number of positions | security | 235 | 236
Fair Value | $ 1,000,874 | $ 1,120,092
Unrealized Losses | $ (123,603) | $ (99,740)
Obligations of states and political subdivisions |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 0 | 3
Fair Value, Less than 12 Months | $ 0 | $ 2,914
Unrealized Losses, Less than 12 Months | $ 0 | $ (2)
Number of positions, 12 Months or More | security | 7 | 9
Fair Value, 12 Months or More | $ 12,841 | $ 15,198
Unrealized Losses, 12 Months or More | $ (2,269) | $ (1,881)
Number of positions | security | 7 | 12
Fair Value | $ 12,841 | $ 18,112
Unrealized Losses | $ (2,269) | $ (1,883)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 0 | 2
Fair Value, Less than 12 Months | $ 0 | $ 2,807
Unrealized Losses, Less than 12 Months | $ 0 | $ (25)
Number of positions, 12 Months or More | security | 128 | 126
Fair Value, 12 Months or More | $ 240,394 | $ 249,995
Unrealized Losses, 12 Months or More | $ (42,491) | $ (33,663)
Number of positions | security | 128 | 128
Fair Value | $ 240,394 | $ 252,802
Unrealized Losses | $ (42,491) | $ (33,688)
Other debt securities |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 2 | 2
Fair Value, Less than 12 Months | $ 22,357 | $ 3,099
Unrealized Losses, Less than 12 Months | $ (218) | $ (195)
Number of positions, 12 Months or More | security | 17 | 19
Fair Value, 12 Months or More | $ 30,801 | $ 35,072
Unrealized Losses, 12 Months or More | $ (2,437) | $ (4,263)
Number of positions | security | 19 | 21
Fair Value | $ 53,158 | $ 38,171
Unrealized Losses | $ (2,655) | $ (4,458)
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 | $ 49,603 | $ 54,254
Unrealized Losses, 12 Months or More | $ (4,080) | $ (4,119)
Number of positions | security | 10 | 10
Fair Value | $ 49,603 | $ 54,254
Unrealized Losses | $ (4,080) | $ (4,119)
Government agency mortgage-backed securities | Residential mortgage-backed securities |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 7 | 1
Fair Value, Less than 12 Months | $ 11,051 | $ 806
Unrealized Losses, Less than 12 Months | $ (259) | $ (25)
Number of positions, 12 Months or More | security | 34 | 35
Fair Value, 12 Months or More | $ 141,321 | $ 166,963
Unrealized Losses, 12 Months or More | $ (24,208) | $ (24,943)
Number of positions | security | 41 | 36
Fair Value | $ 152,372 | $ 167,769
Unrealized Losses | $ (24,467) | $ (24,968)
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 | 69 | 70
Fair Value, 12 Months or More | $ 347,154 | $ 405,950
Unrealized Losses, 12 Months or More | $ (25,251) | $ (20,314)
Number of positions | security | 69 | 70
Fair Value | $ 347,154 | $ 405,950
Unrealized Losses | $ (25,251) | $ (20,314)
Government agency mortgage-backed securities | Commercial mortgage-backed securities |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 2 | 0
Fair Value, Less than 12 Months | $ 5,248 | $ 0
Unrealized Losses, Less than 12 Months | $ (122) | $ 0
Number of positions, 12 Months or More | security | 2 | 2
Fair Value, 12 Months or More | $ 5,375 | $ 5,392
Unrealized Losses, 12 Months or More | $ (629) | $ (637)
Number of positions | security | 4 | 2
Fair Value | $ 10,623 | $ 5,392
Unrealized Losses | $ (751) | $ (637)
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 | $ 14,002 | $ 14,011
Unrealized Losses, 12 Months or More | $ (2,958) | $ (2,972)
Number of positions | security | 1 | 1
Fair Value | $ 14,002 | $ 14,011
Unrealized Losses | $ (2,958) | $ (2,972)
Government agency collateralized mortgage obligations | Residential mortgage-backed securities |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 3 | 0
Fair Value, Less than 12 Months | $ 48,879 | $ 0
Unrealized Losses, Less than 12 Months | $ (482) | $ 0
Number of positions, 12 Months or More | security | 37 | 37
Fair Value, 12 Months or More | $ 311,964 | $ 354,574
Unrealized Losses, 12 Months or More | $ (86,389) | $ (85,883)
Number of positions | security | 40 | 37
Fair Value | $ 360,843 | $ 354,574
Unrealized Losses | $ (86,871) | $ (85,883)
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 | $ 313,376 | $ 355,538
Unrealized Losses, 12 Months or More | $ (41,506) | $ (31,670)
Number of positions | security | 18 | 18
Fair Value | $ 313,376 | $ 355,538
Unrealized Losses | $ (41,506) | $ (31,670)
Government agency collateralized mortgage obligations | Commercial mortgage-backed securities |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 2 | 0
Fair Value, Less than 12 Months | $ 7,681 | $ 0
Unrealized Losses, Less than 12 Months | $ (39) | $ 0
Number of positions, 12 Months or More | security | 25 | 25
Fair Value, 12 Months or More | $ 104,326 | $ 108,575
Unrealized Losses, 12 Months or More | $ (21,556) | $ (21,965)
Number of positions | security | 27 | 25
Fair Value | $ 112,007 | $ 108,575
Unrealized Losses | $ (21,595) | $ (21,965)
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 | $ 36,345 | $ 37,537
Unrealized Losses, 12 Months or More | $ (7,317) | $ (6,977)
Number of positions | security | 9 | 9
Fair Value | $ 36,345 | $ 37,537
Unrealized Losses | $ (7,317) | $ (6,977)

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