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v3.25.1

Investment Securities - Unrealized Gross Losses and Fair Values of Securities in a Continuous Loss Position (Details) | 3 Months Ended | 12 Months Ended
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Mar. 31, 2025 USD ($) security | Dec. 31, 2024 USD ($) security
Securities in the available-for-sale portfolio in a continuous loss position |  |
Number of individual securities in a continuous loss position | security | 154 | 159
Time in Continuous Loss, Unrealized Losses |  |
Less Than 12 Months Unrealized Losses | $ (2,633,000) | $ (4,775,000)
12 Months or More Unrealized Losses | (230,348,000) | (259,563,000)
Total Unrealized Losses | (232,981,000) | (264,338,000)
Time in Continuous Loss, Fair Value |  |
Less Than 12 Months Fair Value | 262,940,000 | 277,688,000
12 Months or More Fair Value | 1,410,806,000 | 1,443,285,000
Total Fair Value | $ 1,673,746,000 | $ 1,720,973,000
Number of securities with intent to sell | 0 | 0
Credit losses recognized on securities | $ 0 | $ 0
Allowance for credit losses, investment securities | $ 0 | $ 0
Investment securities comprised of collateralized loan obligations rated AA or better and obligations issued by local state and political subdivisions rated AA or better | 4.00% | 4.00%
Government agency debt securities |  |
Time in Continuous Loss, Unrealized Losses |  |
12 Months or More Unrealized Losses |  | $ (23,000)
Total Unrealized Losses |  | (23,000)
Time in Continuous Loss, Fair Value |  |
12 Months or More Fair Value |  | 8,147,000
Total Fair Value |  | 8,147,000
Residential - Government agency |  |
Time in Continuous Loss, Unrealized Losses |  |
Less Than 12 Months Unrealized Losses |  | (154,000)
12 Months or More Unrealized Losses | $ (1,305,000) | (1,460,000)
Total Unrealized Losses | (1,305,000) | (1,614,000)
Time in Continuous Loss, Fair Value |  |
Less Than 12 Months Fair Value |  | 27,127,000
12 Months or More Fair Value | 8,718,000 | 8,732,000
Total Fair Value | 8,718,000 | 35,859,000
Residential - Government-sponsored enterprises |  |
Time in Continuous Loss, Unrealized Losses |  |
Less Than 12 Months Unrealized Losses | (1,512,000) | (2,997,000)
12 Months or More Unrealized Losses | (85,165,000) | (99,726,000)
Total Unrealized Losses | (86,677,000) | (102,723,000)
Time in Continuous Loss, Fair Value |  |
Less Than 12 Months Fair Value | 114,923,000 | 116,084,000
12 Months or More Fair Value | 606,556,000 | 622,029,000
Total Fair Value | 721,479,000 | 738,113,000
Commercial - Government agency |  |
Time in Continuous Loss, Unrealized Losses |  |
12 Months or More Unrealized Losses | (50,373,000) | (53,223,000)
Total Unrealized Losses | (50,373,000) | (53,223,000)
Time in Continuous Loss, Fair Value |  |
12 Months or More Fair Value | 195,766,000 | 196,125,000
Total Fair Value | 195,766,000 | 196,125,000
Commercial - Government-sponsored enterprises |  |
Time in Continuous Loss, Unrealized Losses |  |
12 Months or More Unrealized Losses | (2,368,000) | (3,107,000)
Total Unrealized Losses | (2,368,000) | (3,107,000)
Time in Continuous Loss, Fair Value |  |
12 Months or More Fair Value | 44,012,000 | 44,908,000
Total Fair Value | 44,012,000 | 44,908,000
Government agency |  |
Time in Continuous Loss, Unrealized Losses |  |
Less Than 12 Months Unrealized Losses | (937,000) | (712,000)
12 Months or More Unrealized Losses | (48,158,000) | (54,202,000)
Total Unrealized Losses | (49,095,000) | (54,914,000)
Time in Continuous Loss, Fair Value |  |
Less Than 12 Months Fair Value | 75,714,000 | 76,968,000
12 Months or More Fair Value | 306,599,000 | 310,171,000
Total Fair Value | 382,313,000 | 387,139,000
Government-sponsored enterprises |  |
Time in Continuous Loss, Unrealized Losses |  |
Less Than 12 Months Unrealized Losses | (165,000) | (912,000)
12 Months or More Unrealized Losses | (42,979,000) | (47,822,000)
Total Unrealized Losses | (43,144,000) | (48,734,000)
Time in Continuous Loss, Fair Value |  |
Less Than 12 Months Fair Value | 56,582,000 | 57,509,000
12 Months or More Fair Value | 249,155,000 | 253,173,000
Total Fair Value | 305,737,000 | $ 310,682,000
Collateralized loan obligations |  |
Time in Continuous Loss, Unrealized Losses |  |
Less Than 12 Months Unrealized Losses | (19,000) |
Total Unrealized Losses | (19,000) |
Time in Continuous Loss, Fair Value |  |
Less Than 12 Months Fair Value | 15,721,000 |
Total Fair Value | $ 15,721,000 |

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