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Investment Securities - Investment Securities Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Debt Securities, Available-for-Sale, Unrealized Loss Position |  |
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 Months, number of positions | 9 | 64
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 Months, fair value | $ 3,846 | $ 50,929
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, gross unrealized losses | $ 71 | $ 699
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, number of positions | 327 | 364
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, fair value | $ 253,083 | $ 304,000
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, gross unrealized losses | $ 19,710 | $ 29,367
Number of investment positions | 336 | 428
Fair value | $ 256,929 | $ 354,929
Gross unrealized losses | $ 19,781 | $ 30,066
Number of investment positions - more than twelve months, held to maturity | 4 | 4
Fair value - more than twelve months, held to maturity | $ 5,332 | $ 4,591
Gross unrealized losses - more than twelve months, held to maturity | $ 1,668 | $ 2,409
Number of investment positions - held to maturity | 4 | 4
Fair value - held to maturity | $ 5,332 | $ 4,591
Gross unrealized losses - held to maturity | $ 1,668 | $ 2,409
Agency mortgage-backed securities |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position |  |
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 Months, number of positions |  | 7
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 Months, fair value |  | $ 8,008
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, gross unrealized losses |  | $ 93
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, number of positions | 92 | 93
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, fair value | $ 53,836 | $ 59,933
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, gross unrealized losses | $ 5,228 | $ 8,261
Agency CMO |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position |  |
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 Months, number of positions |  | 11
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 Months, fair value |  | $ 19,211
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, gross unrealized losses |  | $ 215
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, number of positions | 21 | 22
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, fair value | $ 7,195 | $ 7,271
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, gross unrealized losses | $ 140 | $ 285
Agency notes and bonds |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position |  |
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 Months, number of positions |  | 7
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 Months, fair value |  | $ 4,830
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, gross unrealized losses |  | $ 57
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, number of positions | 34 | 45
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, fair value | $ 88,194 | $ 112,046
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, gross unrealized losses | $ 1,756 | $ 4,703
Municipal obligations |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position |  |
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 Months, number of positions | 9 | 39
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 Months, fair value | $ 3,846 | $ 18,880
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, gross unrealized losses | $ 71 | $ 334
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, number of positions | 177 | 196
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, fair value | $ 98,417 | $ 103,201
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, gross unrealized losses | $ 12,549 | $ 15,864
Treasury notes and bonds |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position |  |
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, number of positions | 3 | 8
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, fair value | $ 5,441 | $ 21,549
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, gross unrealized losses | $ 37 | $ 254
Corporate notes |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position |  |
Number of investment positions - more than twelve months, held to maturity | 4 | 4
Fair value - more than twelve months, held to maturity | $ 5,332 | $ 4,591
Gross unrealized losses - more than twelve months, held to maturity | $ 1,668 | $ 2,409

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