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Securities & Allowance for Securities Credit Losses - Unrealized Loss Position (Details) - USD ($) $ in Thousands | Sep. 30, 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 | $ (99) | $ (196)
Unrealized loss position for less than 12 months, fair value | 100,153 | 156,681
Unrealized loss position for more than 12 months, unrealized loss | (3,744) | (6,885)
Unrealized loss position for more than 12 months, fair value | 98,161 | 140,153
Available-for Sale, Gross Unrealized Losses, Total | (3,843) | (7,081)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total | 198,314 | 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 | (71) | (29)
Unrealized loss position for less than 12 months, fair value | 92,081 | 141,169
Unrealized loss position for more than 12 months, unrealized loss | (941) | (1,532)
Unrealized loss position for more than 12 months, fair value | 15,476 | 22,348
Available-for Sale, Gross Unrealized Losses, Total | (1,012) | (1,561)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total | 107,557 | 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 | (381) | (582)
Unrealized loss position for more than 12 months, fair value | 5,934 | 7,338
Available-for Sale, Gross Unrealized Losses, Total | (381) | (582)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total | 5,934 | 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 | (15) | (90)
Unrealized loss position for less than 12 months, fair value | 4,008 | 6,365
Unrealized loss position for more than 12 months, unrealized loss | (213) | (663)
Unrealized loss position for more than 12 months, fair value | 12,582 | 30,677
Available-for Sale, Gross Unrealized Losses, Total | (228) | (753)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total | 16,590 | 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 | (13) | (77)
Unrealized loss position for less than 12 months, fair value | 4,064 | 9,121
Unrealized loss position for more than 12 months, unrealized loss | (2,209) | (4,108)
Unrealized loss position for more than 12 months, fair value | 64,169 | 79,790
Available-for Sale, Gross Unrealized Losses, Total | (2,222) | (4,185)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total | $ 68,233 | $ 88,911

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