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PORTFOLIO LOANS - Summary of risk grades segregated by category of portfolio loans (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | $ 7,725,702 | $ 7,188,998
Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 6,964,678 | 6,518,101
Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 563,897 | 463,053
Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 91,405 | 121,120
Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 90,655 | 70,778
Substandard Non-accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 15,067 | 15,946
Commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 1,974,154 | 1,943,886
Commercial | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 1,668,495 | 1,747,756
Commercial | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 201,758 | 93,582
Commercial | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 46,540 | 69,427
Commercial | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 51,187 | 26,117
Commercial | Substandard Non-accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 6,174 | 7,004
Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 3,261,873 | 3,119,807
Commercial real estate | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 2,851,709 | 2,682,441
Commercial real estate | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 326,455 | 343,304
Commercial real estate | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 43,526 | 49,695
Commercial real estate | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 34,539 | 38,394
Commercial real estate | Substandard Non-accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 5,644 | 5,973
Real estate construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 530,469 | 385,996
Real estate construction | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 502,904 | 369,797
Real estate construction | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 25,164 | 13,793
Real estate construction | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 1 | 6
Real estate construction | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 2,400 | 2,400
Real estate construction | Substandard Non-accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 0 | 0
Retail real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 1,657,082 | 1,512,976
Retail real estate | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 1,639,599 | 1,491,845
Retail real estate | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 10,520 | 12,374
Retail real estate | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 1,338 | 1,992
Retail real estate | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 2,529 | 3,867
Retail real estate | Substandard Non-accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 3,096 | 2,898
Retail other |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 302,124 | 226,333
Retail other | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 301,971 | 226,262
Retail other | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 0 | 0
Retail other | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 0 | 0
Retail other | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | 0 | 0
Retail other | Substandard Non-accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Portfolio loans | $ 153 | $ 71

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