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Securities & Allowance for Securities Credit Losses - Unrealized Loss Position (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
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Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items] |  |
Unrealized loss position for less than 12 months, unrealized loss | $ (108) | $ (196)
Unrealized loss position for less than 12 months, fair value | 142,567 | 156,681
Unrealized loss position for more than 12 months, unrealized loss | (5,526) | (6,885)
Unrealized loss position for more than 12 months, fair value | 122,694 | 140,153
Available-for Sale, Gross Unrealized Losses, Total | (5,634) | (7,081)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total | 265,261 | 296,834
U.S. government and federal agencies |  |
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items] |  |
Unrealized loss position for less than 12 months, unrealized loss | (25) | (29)
Unrealized loss position for less than 12 months, fair value | 123,291 | 141,169
Unrealized loss position for more than 12 months, unrealized loss | (1,238) | (1,532)
Unrealized loss position for more than 12 months, fair value | 18,658 | 22,348
Available-for Sale, Gross Unrealized Losses, Total | (1,263) | (1,561)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total | 141,949 | 163,517
Mortgage backed securities |  |
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items] |  |
Unrealized loss position for less than 12 months, unrealized loss | 0 | 0
Unrealized loss position for less than 12 months, fair value | 0 | 26
Unrealized loss position for more than 12 months, unrealized loss | (470) | (582)
Unrealized loss position for more than 12 months, fair value | 6,858 | 7,338
Available-for Sale, Gross Unrealized Losses, Total | (470) | (582)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total | 6,858 | 7,364
Corporate bonds |  |
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items] |  |
Unrealized loss position for less than 12 months, unrealized loss | (43) | (90)
Unrealized loss position for less than 12 months, fair value | 11,335 | 6,365
Unrealized loss position for more than 12 months, unrealized loss | (473) | (663)
Unrealized loss position for more than 12 months, fair value | 24,357 | 30,677
Available-for Sale, Gross Unrealized Losses, Total | (516) | (753)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total | 35,692 | 37,042
State and municipal securities |  |
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items] |  |
Unrealized loss position for less than 12 months, unrealized loss | (40) | (77)
Unrealized loss position for less than 12 months, fair value | 7,941 | 9,121
Unrealized loss position for more than 12 months, unrealized loss | (3,345) | (4,108)
Unrealized loss position for more than 12 months, fair value | 72,821 | 79,790
Available-for Sale, Gross Unrealized Losses, Total | (3,385) | (4,185)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total | $ 80,762 | $ 88,911

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