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FAIR VALUE OF FINANCIAL INSTRUMENTS - Recurring and Nonrecurring basis (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Assets |  |  |  |  |
Investment securities available for sale | $ 1,350,357 |  | $ 1,350,357 |  | $ 1,207,574
Equity securities | 4,295 |  | 4,295 |  | 4,792
U.S. government sponsored entities and U.S. agency securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 25,064 |  | 25,064 |  | 20,141
Mortgage-backed securities - non-agency |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 93,272 |  | 93,272 |  | 101,012
Asset-backed student loans |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 45,077 |  | 45,077 |  | 49,973
State and municipal securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 69,817 |  | 69,817 |  | 69,061
Collateralized loan obligations |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 48,050 |  | 48,050 |  | 40,450
Corporate securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 79,477 |  | 79,477 |  | 79,881
Recurring |  |  |  |  |
Assets |  |  |  |  |
Loans held for sale | 7,899 |  | 7,899 |  | 8,228
Credit enhancement asset |  |  |  |  | 16,804
Derivative assets | $ 5,203 |  | $ 5,203 |  | $ 3,837
Derivative Asset, Statement of Financial Position [Extensible Enumeration] | Other assets |  | Other assets |  | Other assets
Total | $ 1,367,754 |  | $ 1,367,754 |  | $ 1,241,235
Liabilities |  |  |  |  |
Derivative liabilities | 6,917 |  | 6,917 |  | 5,655
Total | 6,917 |  | 6,917 |  | 5,655
Assets measured at fair value on a non-recurring basis: |  |  |  |  |
Credit enhancement asset |  |  |  |  | 16,804
Recurring | U.S. government sponsored entities and U.S. agency securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 25,064 |  | 25,064 |  | 20,141
Recurring | Mortgage-backed securities - agency |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 989,600 |  | 989,600 |  | 847,056
Recurring | Mortgage-backed securities - non-agency |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 93,272 |  | 93,272 |  | 101,012
Recurring | Asset-backed student loans |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 45,077 |  | 45,077 |  | 49,973
Recurring | State and municipal securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 69,817 |  | 69,817 |  | 69,061
Recurring | Collateralized loan obligations |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 48,050 |  | 48,050 |  | 40,450
Recurring | Corporate securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 79,477 |  | 79,477 |  | 79,881
Recurring | Equity securities |  |  |  |  |
Assets |  |  |  |  |
Equity securities | 4,295 |  | 4,295 |  | 4,792
Recurring | Level 1 |  |  |  |  |
Assets |  |  |  |  |
Loans held for sale | 0 |  | 0 |  | 0
Credit enhancement asset |  |  |  |  | 0
Derivative assets | 0 |  | 0 |  | 0
Total | 4,295 |  | 4,295 |  | 4,792
Liabilities |  |  |  |  |
Derivative liabilities | 0 |  | 0 |  | 0
Total | 0 |  | 0 |  | 0
Assets measured at fair value on a non-recurring basis: |  |  |  |  |
Credit enhancement asset |  |  |  |  | 0
Recurring | Level 1 | U.S. government sponsored entities and U.S. agency securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 1 | Mortgage-backed securities - agency |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 1 | Mortgage-backed securities - non-agency |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 1 | Asset-backed student loans |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 1 | State and municipal securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 1 | Collateralized loan obligations |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 1 | Corporate securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 1 | Equity securities |  |  |  |  |
Assets |  |  |  |  |
Equity securities | 4,295 |  | 4,295 |  | 4,792
Recurring | Level 2 |  |  |  |  |
Assets |  |  |  |  |
Loans held for sale | 7,899 |  | 7,899 |  | 8,228
Credit enhancement asset |  |  |  |  | 0
Derivative assets | 5,203 |  | 5,203 |  | 3,837
Total | 1,363,459 |  | 1,363,459 |  | 1,219,639
Liabilities |  |  |  |  |
Derivative liabilities | 6,917 |  | 6,917 |  | 5,655
Total | 6,917 |  | 6,917 |  | 5,655
Assets measured at fair value on a non-recurring basis: |  |  |  |  |
Credit enhancement asset |  |  |  |  | 0
Recurring | Level 2 | U.S. government sponsored entities and U.S. agency securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 25,064 |  | 25,064 |  | 20,141
Recurring | Level 2 | Mortgage-backed securities - agency |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 989,600 |  | 989,600 |  | 847,056
Recurring | Level 2 | Mortgage-backed securities - non-agency |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 93,272 |  | 93,272 |  | 101,012
Recurring | Level 2 | Asset-backed student loans |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 45,077 |  | 45,077 |  | 49,973
Recurring | Level 2 | State and municipal securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 69,817 |  | 69,817 |  | 69,061
Recurring | Level 2 | Collateralized loan obligations |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 48,050 |  | 48,050 |  | 40,450
Recurring | Level 2 | Corporate securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 79,477 |  | 79,477 |  | 79,881
Recurring | Level 2 | Equity securities |  |  |  |  |
Assets |  |  |  |  |
Equity securities | 0 |  | 0 |  | 0
Recurring | Level 3 |  |  |  |  |
Assets |  |  |  |  |
Loans held for sale | 0 |  | 0 |  | 0
Credit enhancement asset |  |  |  |  | 16,804
Derivative assets | 0 |  | 0 |  | 0
Total | 0 |  | 0 |  | 16,804
Liabilities |  |  |  |  |
Derivative liabilities | 0 |  | 0 |  | 0
Total | 0 |  | 0 |  | 0
Assets measured at fair value on a non-recurring basis: |  |  |  |  |
Credit enhancement asset |  |  |  |  | 16,804
Recurring | Level 3 | U.S. government sponsored entities and U.S. agency securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 3 | Mortgage-backed securities - agency |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 3 | Mortgage-backed securities - non-agency |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 3 | Asset-backed student loans |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 3 | State and municipal securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 3 | Collateralized loan obligations |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 3 | Corporate securities |  |  |  |  |
Assets |  |  |  |  |
Investment securities available for sale | 0 |  | 0 |  | 0
Recurring | Level 3 | Equity securities |  |  |  |  |
Assets |  |  |  |  |
Equity securities | 0 |  | 0 |  | 0
Non recurring |  |  |  |  |
Assets |  |  |  |  |
Loans held for sale | 29,400 |  | 29,400 |  | 336,719
Credit enhancement asset | 5,800 |  | 5,800 |  |
Assets measured at fair value on a non-recurring basis: |  |  |  |  |
Nonperforming loans | 52,156 |  | 52,156 |  | 120,222
Other real estate owned | 393 |  | 393 |  | 4,941
Credit enhancement asset | 5,800 |  | 5,800 |  |
Losses recognized on assets measured on non-recurring basis |  |  |  |  |
Nonperforming loans | 8,281 | $ 3,647 | 10,293 | $ 13,870 |
Other real estate owned | 0 | 730 | 0 | 730 |
Total losses on assets measured on a nonrecurring basis | 8,281 | $ 4,377 | 10,293 | $ 14,600 |
Non recurring | Level 1 |  |  |  |  |
Assets |  |  |  |  |
Loans held for sale | 0 |  | 0 |  | 0
Credit enhancement asset | 0 |  | 0 |  |
Assets measured at fair value on a non-recurring basis: |  |  |  |  |
Nonperforming loans | 0 |  | 0 |  | 0
Other real estate owned | 0 |  | 0 |  | 0
Credit enhancement asset | 0 |  | 0 |  |
Non recurring | Level 2 |  |  |  |  |
Assets |  |  |  |  |
Loans held for sale | 0 |  | 0 |  | 0
Credit enhancement asset | 0 |  | 0 |  |
Assets measured at fair value on a non-recurring basis: |  |  |  |  |
Nonperforming loans | 0 |  | 0 |  | 0
Other real estate owned | 0 |  | 0 |  | 0
Credit enhancement asset | 0 |  | 0 |  |
Non recurring | Level 3 |  |  |  |  |
Assets |  |  |  |  |
Loans held for sale | 29,400 |  | 29,400 |  | 336,719
Credit enhancement asset | 5,800 |  | 5,800 |  |
Assets measured at fair value on a non-recurring basis: |  |  |  |  |
Nonperforming loans | 52,156 |  | 52,156 |  | 120,222
Other real estate owned | 393 |  | 393 |  | $ 4,941
Credit enhancement asset | $ 5,800 |  | $ 5,800 |  |

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