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Investment Securities - Schedule of Continuous Unrealized Loss on AFS and HTM Securities (Details) $ in Thousands | Jun. 30, 2026 USD ($) security | Dec. 31, 2025 USD ($) security
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Debt Securities, Available-for-sale [Line Items] |  |
Investment securities available-for-sale, Number of securities | security | 204 | 203
Investment securities available-for-sale, Less than 12 months, estimated fair value | $ 45,447 | $ 0
Investment securities available-for-sale, Less than 12 months, unrealized losses | (425) | 0
Investment securities available-for-sale, 12 months or greater, estimated fair value | 849,810 | 931,564
Investment securities available-for-sale, 12 months or greater, unrealized losses | (80,057) | (78,645)
Investment securities available-for-sale, Estimated fair value | 895,257 | 931,564
Investment securities available-for-sale, Unrealized losses | $ (80,482) | $ (78,645)
Investment securities held-to-maturity, Number of securities | security | 205 | 212
Investment securities held-to-maturity, Less than 12 months, estimated fair value | $ 10,065 | $ 6,193
Investment securities held-to-maturity, Less than 12 months, unrealized losses | (606) | (521)
Investment securities held-to-maturity, 12 months or greater, estimated fair value | 714,966 | 762,849
Investment securities held-to-maturity, 12 months or greater, unrealized losses | (83,737) | (80,350)
Investment securities held-to-maturity, Estimated Fair Value | 725,031 | 769,042
Investment securities held-to-maturity, Unrealized losses | $ (84,343) | $ (80,871)
U.S. agency securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Investment securities available-for-sale, Number of securities | security | 50 | 52
Investment securities available-for-sale, Less than 12 months, estimated fair value | $ 0 | $ 0
Investment securities available-for-sale, Less than 12 months, unrealized losses | 0 | 0
Investment securities available-for-sale, 12 months or greater, estimated fair value | 313,772 | 337,708
Investment securities available-for-sale, 12 months or greater, unrealized losses | (17,591) | (17,541)
Investment securities available-for-sale, Estimated fair value | 313,772 | 337,708
Investment securities available-for-sale, Unrealized losses | $ (17,591) | $ (17,541)
Residential mortgage-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Investment securities available-for-sale, Number of securities | security | 140 | 139
Investment securities available-for-sale, Less than 12 months, estimated fair value | $ 16,642 | $ 0
Investment securities available-for-sale, Less than 12 months, unrealized losses | (227) | 0
Investment securities available-for-sale, 12 months or greater, estimated fair value | 489,180 | 546,514
Investment securities available-for-sale, 12 months or greater, unrealized losses | (59,633) | (58,188)
Investment securities available-for-sale, Estimated fair value | 505,822 | 546,514
Investment securities available-for-sale, Unrealized losses | $ (59,860) | $ (58,188)
Investment securities held-to-maturity, Number of securities | security | 131 | 136
Investment securities held-to-maturity, Less than 12 months, estimated fair value | $ 0 | $ 0
Investment securities held-to-maturity, Less than 12 months, unrealized losses | 0 | 0
Investment securities held-to-maturity, 12 months or greater, estimated fair value | 454,066 | 485,567
Investment securities held-to-maturity, 12 months or greater, unrealized losses | (62,731) | (58,836)
Investment securities held-to-maturity, Estimated Fair Value | 454,066 | 485,567
Investment securities held-to-maturity, Unrealized losses | $ (62,731) | $ (58,836)
Commercial mortgage-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Investment securities available-for-sale, Number of securities | security | 12 | 10
Investment securities available-for-sale, Less than 12 months, estimated fair value | $ 28,805 | $ 0
Investment securities available-for-sale, Less than 12 months, unrealized losses | (198) | 0
Investment securities available-for-sale, 12 months or greater, estimated fair value | 36,929 | 37,329
Investment securities available-for-sale, 12 months or greater, unrealized losses | (2,427) | (2,503)
Investment securities available-for-sale, Estimated fair value | 65,734 | 37,329
Investment securities available-for-sale, Unrealized losses | $ (2,625) | $ (2,503)
Investment securities held-to-maturity, Number of securities | security | 16 | 16
Investment securities held-to-maturity, Less than 12 months, estimated fair value | $ 4,190 | $ 4,271
Investment securities held-to-maturity, Less than 12 months, unrealized losses | (559) | (503)
Investment securities held-to-maturity, 12 months or greater, estimated fair value | 70,083 | 71,702
Investment securities held-to-maturity, 12 months or greater, unrealized losses | (9,850) | (9,284)
Investment securities held-to-maturity, Estimated Fair Value | 74,273 | 75,973
Investment securities held-to-maturity, Unrealized losses | $ (10,409) | $ (9,787)
Municipal bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Investment securities available-for-sale, Number of securities | security | 1 | 1
Investment securities available-for-sale, Less than 12 months, estimated fair value | $ 0 | $ 0
Investment securities available-for-sale, Less than 12 months, unrealized losses | 0 | 0
Investment securities available-for-sale, 12 months or greater, estimated fair value | 7,943 | 8,046
Investment securities available-for-sale, 12 months or greater, unrealized losses | (392) | (380)
Investment securities available-for-sale, Estimated fair value | 7,943 | 8,046
Investment securities available-for-sale, Unrealized losses | $ (392) | $ (380)
Investment securities held-to-maturity, Number of securities | security | 33 | 33
Investment securities held-to-maturity, Less than 12 months, estimated fair value | $ 0 | $ 0
Investment securities held-to-maturity, Less than 12 months, unrealized losses | 0 | 0
Investment securities held-to-maturity, 12 months or greater, estimated fair value | 98,469 | 98,942
Investment securities held-to-maturity, 12 months or greater, unrealized losses | (7,284) | (6,933)
Investment securities held-to-maturity, Estimated Fair Value | 98,469 | 98,942
Investment securities held-to-maturity, Unrealized losses | $ (7,284) | $ (6,933)
Corporate bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Investment securities available-for-sale, Number of securities | security | 1 | 1
Investment securities available-for-sale, Less than 12 months, estimated fair value | $ 0 | $ 0
Investment securities available-for-sale, Less than 12 months, unrealized losses | 0 | 0
Investment securities available-for-sale, 12 months or greater, estimated fair value | 1,986 | 1,967
Investment securities available-for-sale, 12 months or greater, unrealized losses | (14) | (33)
Investment securities available-for-sale, Estimated fair value | 1,986 | 1,967
Investment securities available-for-sale, Unrealized losses | $ (14) | $ (33)
Investment securities held-to-maturity, Number of securities | security | 25 | 27
Investment securities held-to-maturity, Less than 12 months, estimated fair value | $ 5,875 | $ 1,922
Investment securities held-to-maturity, Less than 12 months, unrealized losses | (47) | (18)
Investment securities held-to-maturity, 12 months or greater, estimated fair value | 92,348 | 106,638
Investment securities held-to-maturity, 12 months or greater, unrealized losses | (3,872) | (5,297)
Investment securities held-to-maturity, Estimated Fair Value | 98,223 | 108,560
Investment securities held-to-maturity, Unrealized losses | $ (3,919) | $ (5,315)

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