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FAIR VALUE MEASUREMENTS - Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | $ 5,600 | $ 6,100
Securities available for sale, at fair value | 661,740 | 1,022,285
Equity securities | 13,278 | 13,029
U.S Treasuries |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 6,907 | 7,981
Municipal bonds and obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 62,931 | 63,853
Corporate bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 35,317 | 39,115
Other bonds and obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 656 | 656
Fair Value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 5,560 | 6,142
Securities available for sale, at fair value | 661,740 | 1,022,285
Equity securities | 13,278 | 13,029
Loans held for investment at fair value | 9,024,531 | 8,768,108
Loans held for sale | 50,634 | 2,237
Derivative assets | 45,007 | 45,668
Derivative liabilities | 63,678 | 75,957
Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 0 | 0
Securities available for sale, at fair value | 6,907 | 7,981
Equity securities | 13,278 | 13,029
Loans held for investment at fair value | 0 | 0
Loans held for sale | 0 | 0
Derivative assets | 0 | 0
Derivative liabilities | 0 | 0
Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 0 | 0
Securities available for sale, at fair value | 650,941 | 1,010,381
Equity securities | 0 | 0
Loans held for investment at fair value | 0 | 0
Loans held for sale | 6,003 | 2,237
Derivative assets | 44,790 | 45,613
Derivative liabilities | 63,678 | 75,957
Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 5,560 | 6,142
Securities available for sale, at fair value | 3,892 | 3,923
Equity securities | 0 | 0
Loans held for investment at fair value | 9,024,531 | 8,768,108
Loans held for sale | 44,631 | 0
Derivative assets | 217 | 55
Derivative liabilities | 0 | 0
Recurring | Fair Value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 5,560 | 6,142
Equity securities | 13,278 | 13,029
Loans held for investment at fair value | 294 | 374
Loans held for sale | 6,003 | 2,237
Derivative assets | 45,007 | 45,668
Capitalized servicing rights | 1,386 | 1,526
Derivative liabilities | 63,678 | 75,957
Recurring | Fair Value | U.S Treasuries |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 6,907 | 7,981
Recurring | Fair Value | Municipal bonds and obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 62,931 | 63,853
Recurring | Fair Value | Agency collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 252,432 | 347,874
Recurring | Fair Value | Agency residential mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 232,931 | 417,480
Recurring | Fair Value | Agency commercial mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 70,566 | 145,326
Recurring | Fair Value | Corporate bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 35,317 | 39,115
Recurring | Fair Value | Other bonds and obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 656 |
Recurring | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 0 | 0
Equity securities | 13,278 | 13,029
Loans held for investment at fair value | 0 | 0
Loans held for sale | 0 | 0
Derivative assets | 0 | 0
Capitalized servicing rights | 0 | 0
Derivative liabilities | 0 | 0
Recurring | Level 1 | U.S Treasuries |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 6,907 | 7,981
Recurring | Level 1 | Municipal bonds and obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 0 | 0
Recurring | Level 1 | Agency collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 0 | 0
Recurring | Level 1 | Agency residential mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 0 | 0
Recurring | Level 1 | Agency commercial mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 0 | 0
Recurring | Level 1 | Corporate bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 0 | 0
Recurring | Level 1 | Other bonds and obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 0 |
Recurring | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 0 | 0
Equity securities | 0 | 0
Loans held for investment at fair value | 0 | 0
Loans held for sale | 6,003 | 2,237
Derivative assets | 44,790 | 45,613
Capitalized servicing rights | 0 | 0
Derivative liabilities | 63,678 | 75,957
Recurring | Level 2 | U.S Treasuries |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 0 | 0
Recurring | Level 2 | Municipal bonds and obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 62,931 | 63,853
Recurring | Level 2 | Agency collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 252,432 | 347,874
Recurring | Level 2 | Agency residential mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 232,931 | 417,480
Recurring | Level 2 | Agency commercial mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 70,566 | 145,326
Recurring | Level 2 | Corporate bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 31,425 | 35,192
Recurring | Level 2 | Other bonds and obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 656 |
Recurring | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 5,560 | 6,142
Securities available for sale, at fair value | 3,892 | 3,923
Equity securities | 0 | 0
Loans held for investment at fair value | 294 | 374
Loans held for sale | 0 | 0
Derivative assets | 217 | 55
Capitalized servicing rights | 1,386 | 1,526
Derivative liabilities | 0 | 0
Recurring | Level 3 | U.S Treasuries |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 0 | 0
Recurring | Level 3 | Municipal bonds and obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 0 | 0
Recurring | Level 3 | Agency collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 0 | 0
Recurring | Level 3 | Agency residential mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 0 | 0
Recurring | Level 3 | Agency commercial mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 0 | 0
Recurring | Level 3 | Corporate bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | 3,892 | $ 3,923
Recurring | Level 3 | Other bonds and obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available for sale, at fair value | $ 0 |

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