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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Changes in Allowance for Loan Losses by Loan Segment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Allowance for loan losses: |  |  |
Beginning balance | $ 223,277 |  | $ 130,648
Provision for credit losses | 7,300 | $ 0 | 0
CECL Day 1 non-PCD provision for credit losses |  | 13,955 |
CECL Day 1 PCD ACL |  | 16,599 |
Recoveries on loans | 2,396 | 3,927 | 2,578
Loans charged off | (28,039) | (6,601) | (11,884)
Ending balance | 204,934 | 223,277 |
Impact of adopting ASC 326 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 74,055
Balance, January 1, 2021 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 204,703
Previously Reported |  |  |
Allowance for loan losses: |  |  |
Beginning balance | 223,277 | 195,397 | 130,648
Ending balance |  | 223,277 | 195,397
Credit risk reclassifications |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 0
Commercial |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 47,115
Provision for credit losses | 17,401 | 16,697 | 7,921
CECL Day 1 non-PCD provision for credit losses |  | 2,957 |
CECL Day 1 PCD ACL |  | 12,970 |
Recoveries on loans | 995 | 872 | 724
Loans charged off | (23,264) | (1,215) | (5,849)
Ending balance | 97,348 |  |
Commercial | Impact of adopting ASC 326 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 20,024
Commercial | Balance, January 1, 2021 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 67,139
Commercial | Previously Reported |  |  |
Allowance for loan losses: |  |  |
Beginning balance | 102,216 | 69,935 | 47,115
Ending balance |  | 102,216 | 69,935
Commercial | Credit risk reclassifications |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  |
Commercial Real Estate |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 40,786
Provision for credit losses | (2,735) | (20,425) | (11,093)
CECL Day 1 non-PCD provision for credit losses |  | 5,539 |
CECL Day 1 PCD ACL |  | 2,981 |
Recoveries on loans | 60 | 1,096 | 580
Loans charged off | (116) | (3,017) | (4,533)
Ending balance | 44,048 |  |
Commercial Real Estate | Impact of adopting ASC 326 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 34,925
Commercial Real Estate | Balance, January 1, 2021 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 75,711
Commercial Real Estate | Previously Reported |  |  |
Allowance for loan losses: |  |  |
Beginning balance | 46,839 | 60,665 | 51,070
Ending balance |  | 46,839 | 60,665
Commercial Real Estate | Credit risk reclassifications |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | (10,284)
Construction |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 10,284
Provision for credit losses | (4,132) | 6,367 | 1,122
CECL Day 1 non-PCD provision for credit losses |  | 871 |
CECL Day 1 PCD ACL |  | 648 |
Recoveries on loans | 0 | 863 | 1
Loans charged off | 0 | 0 | (6)
Ending balance | 24,823 |  |
Construction | Impact of adopting ASC 326 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 8,805
Construction | Balance, January 1, 2021 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 19,089
Construction | Previously Reported |  |  |
Allowance for loan losses: |  |  |
Beginning balance | 28,955 | 20,206 | 0
Ending balance |  | 28,955 | 20,206
Construction | Credit risk reclassifications |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 10,284
Consumer |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 0
Provision for credit losses |  |  | 0
Recoveries on loans |  |  | 0
Loans charged off |  |  | 0
Consumer | Impact of adopting ASC 326 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 0
Consumer | Balance, January 1, 2021 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 0
Consumer | Previously Reported |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  | 0 | 9,648
Ending balance |  |  | 0
Consumer | Credit risk reclassifications |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | (9,648)
Residential |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 0
Provision for credit losses |  |  | 0
Recoveries on loans |  |  | 0
Loans charged off |  |  | 0
Residential | Impact of adopting ASC 326 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 0
Residential | Balance, January 1, 2021 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 0
Residential | Previously Reported |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  | 0 | 22,815
Ending balance |  |  | 0
Residential | Credit risk reclassifications |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | (22,815)
Consumer & Residential |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 32,463
Provision for credit losses | (3,234) | (2,639) | 2,050
CECL Day 1 non-PCD provision for credit losses |  | 4,588 |
CECL Day 1 PCD ACL |  | 0 |
Recoveries on loans | 1,341 | 1,096 | 1,273
Loans charged off | (4,659) | (2,369) | (1,496)
Ending balance | 38,715 |  |
Consumer & Residential | Impact of adopting ASC 326 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 10,301
Consumer & Residential | Balance, January 1, 2021 |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | 42,764
Consumer & Residential | Previously Reported |  |  |
Allowance for loan losses: |  |  |
Beginning balance | $ 45,267 | 44,591 | 0
Ending balance |  | $ 45,267 | 44,591
Consumer & Residential | Credit risk reclassifications |  |  |
Allowance for loan losses: |  |  |
Beginning balance |  |  | $ 32,463

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