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SECURITIES - Schedule of Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
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Debt Securities, Available-for-sale [Line Items] |  |
Securities in a Continuous Unrealized Loss Position, Less than 12 months, Estimated Fair Value | $ 435,417 | $ 520,449
Securities in a Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses | (3,494) | (13,218)
Securities in a Continuous Unrealized Loss Position, More than 12 Months, Estimated Fair Value | 910,018 | 955,313
Securities in a Continuous Unrealized Loss Position, More than 12 Months Unrealized Losses | (99,424) | (147,183)
Estimated Fair Value | 1,345,435 | 1,475,762
Unrealized Losses | (102,918) | (160,401)
U.S. government and agency securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Securities in a Continuous Unrealized Loss Position, Less than 12 months, Estimated Fair Value | 185,275 | 29,443
Securities in a Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses | (180) | (576)
Securities in a Continuous Unrealized Loss Position, More than 12 Months, Estimated Fair Value | 51,684 | 122,936
Securities in a Continuous Unrealized Loss Position, More than 12 Months Unrealized Losses | (2,203) | (5,131)
Estimated Fair Value | 236,959 | 152,379
Unrealized Losses | (2,383) | (5,707)
Municipal securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Securities in a Continuous Unrealized Loss Position, Less than 12 months, Estimated Fair Value | 6,091 | 8,512
Securities in a Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses | (725) | (183)
Securities in a Continuous Unrealized Loss Position, More than 12 Months, Estimated Fair Value | 170,400 | 168,132
Securities in a Continuous Unrealized Loss Position, More than 12 Months Unrealized Losses | (21,844) | (28,276)
Estimated Fair Value | 176,491 | 176,644
Unrealized Losses | (22,569) | (28,459)
Agency mortgage-backed pass-through securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Securities in a Continuous Unrealized Loss Position, Less than 12 months, Estimated Fair Value | 157,352 | 254,169
Securities in a Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses | (1,390) | (6,861)
Securities in a Continuous Unrealized Loss Position, More than 12 Months, Estimated Fair Value | 279,693 | 265,993
Securities in a Continuous Unrealized Loss Position, More than 12 Months Unrealized Losses | (27,987) | (38,485)
Estimated Fair Value | 437,045 | 520,162
Unrealized Losses | (29,377) | (45,346)
Agency collateralized mortgage obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Securities in a Continuous Unrealized Loss Position, Less than 12 months, Estimated Fair Value | 65,444 | 216,422
Securities in a Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses | (1,006) | (4,501)
Securities in a Continuous Unrealized Loss Position, More than 12 Months, Estimated Fair Value | 357,857 | 317,225
Securities in a Continuous Unrealized Loss Position, More than 12 Months Unrealized Losses | (42,931) | (66,827)
Estimated Fair Value | 423,301 | 533,647
Unrealized Losses | (43,937) | (71,328)
Corporate bonds and other |  |
Debt Securities, Available-for-sale [Line Items] |  |
Securities in a Continuous Unrealized Loss Position, Less than 12 months, Estimated Fair Value | 21,255 | 11,903
Securities in a Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses | (193) | (1,097)
Securities in a Continuous Unrealized Loss Position, More than 12 Months, Estimated Fair Value | 50,384 | 81,027
Securities in a Continuous Unrealized Loss Position, More than 12 Months Unrealized Losses | (4,459) | (8,464)
Estimated Fair Value | 71,639 | 92,930
Unrealized Losses | $ (4,652) | $ (9,561)

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