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FAIR VALUE MEASUREMENT - Schedule of Fair Value Hierarchy Measurement (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Assets: |  |
Investment securities AFS | $ 1,117,551 | $ 1,251,199
Derivatives | 1,185 | 1,064
Liabilities: |  |
Derivative liabilities | 7,945 | 10,588
Residential mortgage-backed securities |  |
Assets: |  |
Investment securities AFS | 173,904 | 183,798
Commercial mortgage-backed securities |  |
Assets: |  |
Investment securities AFS | 49,178 | 47,756
Municipal bonds |  |
Assets: |  |
Investment securities AFS | 395,964 | 404,874
Corporate debt securities |  |
Assets: |  |
Investment securities AFS | 34,960 | 38,547
U.S. Treasury securities |  |
Assets: |  |
Investment securities AFS | 20,505 | 20,184
Agency debentures |  |
Assets: |  |
Investment securities AFS | 46,043 | 58,905
Recurring |  |
Assets: |  |
Single family LHFS | 38,863 | 12,849
Single family LHFI | 1,329 | 1,280
Single family mortgage servicing rights | 70,800 | 74,249
Total assets | 1,275,473 | 1,375,458
Liabilities: |  |
Total liabilities | 8,338 | 10,783
Recurring | Residential mortgage-backed securities |  |
Assets: |  |
Investment securities AFS | 173,904 | 183,798
Recurring | Commercial mortgage-backed securities |  |
Assets: |  |
Investment securities AFS | 49,178 | 47,756
Recurring | Collateralized mortgage obligations residential |  |
Assets: |  |
Investment securities AFS | 340,359 | 439,738
Recurring | Collateralized mortgage obligations commercial |  |
Assets: |  |
Investment securities AFS | 56,638 | 57,397
Recurring | Municipal bonds |  |
Assets: |  |
Investment securities AFS | 395,964 | 404,874
Recurring | Corporate debt securities |  |
Assets: |  |
Investment securities AFS | 34,960 | 38,547
Recurring | U.S. Treasury securities |  |
Assets: |  |
Trading securities - U.S. Treasury securities | 38,166 | 24,698
Investment securities AFS | 20,505 | 20,184
Recurring | Agency debentures |  |
Assets: |  |
Investment securities AFS | 46,043 | 58,905
Recurring | Futures |  |
Liabilities: |  |
Derivative liabilities | 13 | 3
Recurring | Forward sale commitments |  |
Assets: |  |
Derivatives | 175 | 151
Liabilities: |  |
Derivative liabilities | 338 | 288
Recurring | Options |  |
Assets: |  |
Derivatives | 9 | 132
Recurring | Interest rate lock commitments |  |
Assets: |  |
Derivatives | 655 | 411
Liabilities: |  |
Derivative liabilities | 59 |
Recurring | Interest rate swaps |  |
Assets: |  |
Derivatives | 7,925 | 10,489
Liabilities: |  |
Derivative liabilities | 7,928 | 10,492
Level 1 | Recurring |  |
Assets: |  |
Single family LHFS | 0 | 0
Single family LHFI | 0 | 0
Single family mortgage servicing rights | 0 | 0
Total assets | 38,175 | 24,830
Liabilities: |  |
Total liabilities | 13 | 3
Level 1 | Recurring | Residential mortgage-backed securities |  |
Assets: |  |
Investment securities AFS | 0 | 0
Level 1 | Recurring | Commercial mortgage-backed securities |  |
Assets: |  |
Investment securities AFS | 0 | 0
Level 1 | Recurring | Collateralized mortgage obligations residential |  |
Assets: |  |
Investment securities AFS | 0 | 0
Level 1 | Recurring | Collateralized mortgage obligations commercial |  |
Assets: |  |
Investment securities AFS | 0 | 0
Level 1 | Recurring | Municipal bonds |  |
Assets: |  |
Investment securities AFS | 0 | 0
Level 1 | Recurring | Corporate debt securities |  |
Assets: |  |
Investment securities AFS | 0 | 0
Level 1 | Recurring | U.S. Treasury securities |  |
Assets: |  |
Trading securities - U.S. Treasury securities | 38,166 | 24,698
Investment securities AFS | 0 | 0
Level 1 | Recurring | Agency debentures |  |
Assets: |  |
Investment securities AFS | 0 | 0
Level 1 | Recurring | Futures |  |
Liabilities: |  |
Derivative liabilities | 13 | 3
Level 1 | Recurring | Forward sale commitments |  |
Assets: |  |
Derivatives | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Level 1 | Recurring | Options |  |
Assets: |  |
Derivatives | 9 | 132
Level 1 | Recurring | Interest rate lock commitments |  |
Assets: |  |
Derivatives | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 |
Level 1 | Recurring | Interest rate swaps |  |
Assets: |  |
Derivatives | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Level 2 | Recurring |  |
Assets: |  |
Single family LHFS | 38,863 | 12,849
Single family LHFI | 0 | 0
Single family mortgage servicing rights | 0 | 0
Total assets | 1,162,710 | 1,272,828
Liabilities: |  |
Total liabilities | 8,266 | 10,780
Level 2 | Recurring | Residential mortgage-backed securities |  |
Assets: |  |
Investment securities AFS | 172,100 | 181,938
Level 2 | Recurring | Commercial mortgage-backed securities |  |
Assets: |  |
Investment securities AFS | 49,178 | 47,756
Level 2 | Recurring | Collateralized mortgage obligations residential |  |
Assets: |  |
Investment securities AFS | 340,359 | 439,738
Level 2 | Recurring | Collateralized mortgage obligations commercial |  |
Assets: |  |
Investment securities AFS | 56,638 | 57,397
Level 2 | Recurring | Municipal bonds |  |
Assets: |  |
Investment securities AFS | 395,964 | 404,874
Level 2 | Recurring | Corporate debt securities |  |
Assets: |  |
Investment securities AFS | 34,960 | 38,547
Level 2 | Recurring | U.S. Treasury securities |  |
Assets: |  |
Trading securities - U.S. Treasury securities | 0 | 0
Investment securities AFS | 20,505 | 20,184
Level 2 | Recurring | Agency debentures |  |
Assets: |  |
Investment securities AFS | 46,043 | 58,905
Level 2 | Recurring | Futures |  |
Liabilities: |  |
Derivative liabilities | 0 | 0
Level 2 | Recurring | Forward sale commitments |  |
Assets: |  |
Derivatives | 175 | 151
Liabilities: |  |
Derivative liabilities | 338 | 288
Level 2 | Recurring | Options |  |
Assets: |  |
Derivatives | 0 | 0
Level 2 | Recurring | Interest rate lock commitments |  |
Assets: |  |
Derivatives | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 |
Level 2 | Recurring | Interest rate swaps |  |
Assets: |  |
Derivatives | 7,925 | 10,489
Liabilities: |  |
Derivative liabilities | 7,928 | 10,492
Level 3 | Recurring |  |
Assets: |  |
Single family LHFS | 0 | 0
Single family LHFI | 1,329 | 1,280
Single family mortgage servicing rights | 70,800 | 74,249
Total assets | 74,588 | 77,800
Liabilities: |  |
Total liabilities | 59 | 0
Level 3 | Recurring | Residential mortgage-backed securities |  |
Assets: |  |
Investment securities AFS | 1,804 | 1,860
Level 3 | Recurring | Commercial mortgage-backed securities |  |
Assets: |  |
Investment securities AFS | 0 | 0
Level 3 | Recurring | Collateralized mortgage obligations residential |  |
Assets: |  |
Investment securities AFS | 0 | 0
Level 3 | Recurring | Collateralized mortgage obligations commercial |  |
Assets: |  |
Investment securities AFS | 0 | 0
Level 3 | Recurring | Municipal bonds |  |
Assets: |  |
Investment securities AFS | 0 | 0
Level 3 | Recurring | Corporate debt securities |  |
Assets: |  |
Investment securities AFS | 0 | 0
Level 3 | Recurring | U.S. Treasury securities |  |
Assets: |  |
Trading securities - U.S. Treasury securities | 0 | 0
Investment securities AFS | 0 | 0
Level 3 | Recurring | Agency debentures |  |
Assets: |  |
Investment securities AFS | 0 | 0
Level 3 | Recurring | Futures |  |
Liabilities: |  |
Derivative liabilities | 0 | 0
Level 3 | Recurring | Forward sale commitments |  |
Assets: |  |
Derivatives | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Level 3 | Recurring | Options |  |
Assets: |  |
Derivatives | 0 |
Level 3 | Recurring | Interest rate lock commitments |  |
Assets: |  |
Derivatives | 655 | 411
Liabilities: |  |
Derivative liabilities | 59 |
Level 3 | Recurring | Interest rate swaps |  |
Assets: |  |
Derivatives | 0 | 0
Liabilities: |  |
Derivative liabilities | $ 0 | $ 0

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