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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Credit Quality By Past Due Status (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Aged analysis of the company's loans |  |
Total Loans | $ 10,251,674 | $ 9,704,598
Legacy Loan |  |
Aged analysis of the company's loans |  |
Total Loans | 10,251,674 | 9,704,598
Nonaccrual | 59,013 | 48,687
Legacy Loan | Past Due 30 - 89 Days |  |
Aged analysis of the company's loans |  |
Total Loans | 47,234 | 48,442
Legacy Loan | 90+ Days Past Due and Still Accruing |  |
Aged analysis of the company's loans |  |
Total Loans | 3,833 | 5,886
Legacy Loan | Financial Asset, Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 110,080 | 103,015
Legacy Loan | Financial Asset, Not Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 10,141,594 | 9,601,583
CRE - multifamily |  |
Aged analysis of the company's loans |  |
Total Loans | 694,847 | 619,794
CRE - owner occupied |  |
Aged analysis of the company's loans |  |
Total Loans | 870,165 | 752,774
CRE - non-owner occupied |  |
Aged analysis of the company's loans |  |
Total Loans | 1,731,850 | 1,711,198
Commercial & industrial and other business loans |  |
Aged analysis of the company's loans |  |
Total Loans | 1,094,767 | 1,000,630
Business lending |  |
Aged analysis of the company's loans |  |
Total Loans | 4,391,629 | 4,084,396
Consumer mortgage |  |
Aged analysis of the company's loans |  |
Total Loans | 3,427,317 | 3,285,018
Consumer indirect |  |
Aged analysis of the company's loans |  |
Total Loans | 1,780,586 | 1,703,440
Consumer direct |  |
Aged analysis of the company's loans |  |
Total Loans | 191,178 | 185,229
Home equity |  |
Aged analysis of the company's loans |  |
Total Loans | 460,964 | 446,515
Commercial Portfolio Segment | CRE - multifamily |  |
Aged analysis of the company's loans |  |
Total Loans | 694,847 | 619,794
Commercial Portfolio Segment | CRE - multifamily | Legacy Loan |  |
Aged analysis of the company's loans |  |
Total Loans | 694,847 | 619,794
Nonaccrual | 311 | 0
Commercial Portfolio Segment | CRE - multifamily | Legacy Loan | Past Due 30 - 89 Days |  |
Aged analysis of the company's loans |  |
Total Loans | 716 | 0
Commercial Portfolio Segment | CRE - multifamily | Legacy Loan | 90+ Days Past Due and Still Accruing |  |
Aged analysis of the company's loans |  |
Total Loans | 0 | 0
Commercial Portfolio Segment | CRE - multifamily | Legacy Loan | Financial Asset, Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 1,027 | 0
Commercial Portfolio Segment | CRE - multifamily | Legacy Loan | Financial Asset, Not Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 693,820 | 619,794
Commercial Portfolio Segment | CRE - owner occupied |  |
Aged analysis of the company's loans |  |
Total Loans | 870,165 | 752,774
Commercial Portfolio Segment | CRE - non-owner occupied |  |
Aged analysis of the company's loans |  |
Total Loans | 1,731,850 | 1,711,198
Commercial Portfolio Segment | Commercial & industrial and other business loans |  |
Aged analysis of the company's loans |  |
Total Loans | 1,094,767 | 1,000,630
Residential Portfolio Segment | CRE - owner occupied | Legacy Loan |  |
Aged analysis of the company's loans |  |
Total Loans | 870,165 | 752,774
Nonaccrual | 10,064 | 1,953
Residential Portfolio Segment | CRE - owner occupied | Legacy Loan | Past Due 30 - 89 Days |  |
Aged analysis of the company's loans |  |
Total Loans | 121 | 1,477
Residential Portfolio Segment | CRE - owner occupied | Legacy Loan | 90+ Days Past Due and Still Accruing |  |
Aged analysis of the company's loans |  |
Total Loans | 0 | 0
Residential Portfolio Segment | CRE - owner occupied | Legacy Loan | Financial Asset, Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 10,185 | 3,430
Residential Portfolio Segment | CRE - owner occupied | Legacy Loan | Financial Asset, Not Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 859,980 | 749,344
Residential Portfolio Segment | Consumer mortgage |  |
Aged analysis of the company's loans |  |
Total Loans | 3,427,317 | 3,285,018
Residential Portfolio Segment | Consumer mortgage | Legacy Loan |  |
Aged analysis of the company's loans |  |
Total Loans | 3,427,317 | 3,285,018
Nonaccrual | 26,136 | 26,043
Residential Portfolio Segment | Consumer mortgage | Legacy Loan | Past Due 30 - 89 Days |  |
Aged analysis of the company's loans |  |
Total Loans | 22,466 | 18,434
Residential Portfolio Segment | Consumer mortgage | Legacy Loan | 90+ Days Past Due and Still Accruing |  |
Aged analysis of the company's loans |  |
Total Loans | 2,731 | 4,559
Residential Portfolio Segment | Consumer mortgage | Legacy Loan | Financial Asset, Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 51,333 | 49,036
Residential Portfolio Segment | Consumer mortgage | Legacy Loan | Financial Asset, Not Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 3,375,984 | 3,235,982
Residential Portfolio Segment | Home equity | Legacy Loan |  |
Aged analysis of the company's loans |  |
Total Loans | 460,964 | 446,515
Nonaccrual | 2,299 | 2,368
Residential Portfolio Segment | Home equity | Legacy Loan | Past Due 30 - 89 Days |  |
Aged analysis of the company's loans |  |
Total Loans | 2,474 | 3,546
Residential Portfolio Segment | Home equity | Legacy Loan | 90+ Days Past Due and Still Accruing |  |
Aged analysis of the company's loans |  |
Total Loans | 407 | 416
Residential Portfolio Segment | Home equity | Legacy Loan | Financial Asset, Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 5,180 | 6,330
Residential Portfolio Segment | Home equity | Legacy Loan | Financial Asset, Not Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 455,784 | 440,185
Consumer Portfolio Segment | CRE - non-owner occupied | Legacy Loan |  |
Aged analysis of the company's loans |  |
Total Loans | 1,731,850 | 1,711,198
Nonaccrual | 12,230 | 17,964
Consumer Portfolio Segment | CRE - non-owner occupied | Legacy Loan | Past Due 30 - 89 Days |  |
Aged analysis of the company's loans |  |
Total Loans | 100 | 2,311
Consumer Portfolio Segment | CRE - non-owner occupied | Legacy Loan | 90+ Days Past Due and Still Accruing |  |
Aged analysis of the company's loans |  |
Total Loans | 0 | 0
Consumer Portfolio Segment | CRE - non-owner occupied | Legacy Loan | Financial Asset, Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 12,330 | 20,275
Consumer Portfolio Segment | CRE - non-owner occupied | Legacy Loan | Financial Asset, Not Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 1,719,520 | 1,690,923
Consumer Portfolio Segment | Commercial & industrial and other business loans | Legacy Loan |  |
Aged analysis of the company's loans |  |
Total Loans | 1,094,767 | 1,000,630
Nonaccrual | 7,973 | 336
Consumer Portfolio Segment | Commercial & industrial and other business loans | Legacy Loan | Past Due 30 - 89 Days |  |
Aged analysis of the company's loans |  |
Total Loans | 923 | 880
Consumer Portfolio Segment | Commercial & industrial and other business loans | Legacy Loan | 90+ Days Past Due and Still Accruing |  |
Aged analysis of the company's loans |  |
Total Loans | 0 | 0
Consumer Portfolio Segment | Commercial & industrial and other business loans | Legacy Loan | Financial Asset, Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 8,896 | 1,216
Consumer Portfolio Segment | Commercial & industrial and other business loans | Legacy Loan | Financial Asset, Not Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 1,085,871 | 999,414
Consumer Portfolio Segment | Consumer indirect |  |
Aged analysis of the company's loans |  |
Total Loans | 1,780,586 | 1,703,440
Consumer Portfolio Segment | Consumer indirect | Legacy Loan |  |
Aged analysis of the company's loans |  |
Total Loans | 1,780,586 | 1,703,440
Nonaccrual | 0 | 0
Consumer Portfolio Segment | Consumer indirect | Legacy Loan | Past Due 30 - 89 Days |  |
Aged analysis of the company's loans |  |
Total Loans | 19,066 | 20,215
Consumer Portfolio Segment | Consumer indirect | Legacy Loan | 90+ Days Past Due and Still Accruing |  |
Aged analysis of the company's loans |  |
Total Loans | 585 | 776
Consumer Portfolio Segment | Consumer indirect | Legacy Loan | Financial Asset, Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 19,651 | 20,991
Consumer Portfolio Segment | Consumer indirect | Legacy Loan | Financial Asset, Not Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 1,760,935 | 1,682,449
Consumer Portfolio Segment | Consumer direct |  |
Aged analysis of the company's loans |  |
Total Loans | 191,178 | 185,229
Consumer Portfolio Segment | Consumer direct | Legacy Loan |  |
Aged analysis of the company's loans |  |
Total Loans | 191,178 | 185,229
Nonaccrual | 0 | 23
Consumer Portfolio Segment | Consumer direct | Legacy Loan | Past Due 30 - 89 Days |  |
Aged analysis of the company's loans |  |
Total Loans | 1,368 | 1,579
Consumer Portfolio Segment | Consumer direct | Legacy Loan | 90+ Days Past Due and Still Accruing |  |
Aged analysis of the company's loans |  |
Total Loans | 110 | 135
Consumer Portfolio Segment | Consumer direct | Legacy Loan | Financial Asset, Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 1,478 | 1,737
Consumer Portfolio Segment | Consumer direct | Legacy Loan | Financial Asset, Not Past Due |  |
Aged analysis of the company's loans |  |
Total Loans | 189,700 | 183,492
Consumer Portfolio Segment | Home equity |  |
Aged analysis of the company's loans |  |
Total Loans | $ 460,964 | $ 446,515

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