v3.26.1
LOANS AND ALLOWANCE FOR CREDIT LOSSES - Credit Quality By Past Due Status (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Aged analysis of the company's loans          
Total Loans $ 11,282,824   $ 11,282,824   $ 10,949,757
Nonaccrual          
Aged analysis of the company's loans          
Interest income on nonaccrual loans 100 $ 100 500 $ 200  
Legacy Loan          
Aged analysis of the company's loans          
Total Loans 11,282,824   11,282,824   10,949,757
Nonaccrual 49,690   49,690   49,509
Legacy Loan | Past Due 30 - 89 Days          
Aged analysis of the company's loans          
Total Loans 61,082   61,082   63,924
Legacy Loan | 90+ Days Past Due and Still Accruing          
Aged analysis of the company's loans          
Total Loans 7,112   7,112   6,948
Legacy Loan | Financial Asset, Past Due          
Aged analysis of the company's loans          
Total Loans 117,884   117,884   120,381
Legacy Loan | Financial Asset, Not Past Due          
Aged analysis of the company's loans          
Total Loans 11,164,940   11,164,940   10,829,376
CRE - multifamily          
Aged analysis of the company's loans          
Total Loans 951,856   951,856   917,586
CRE - owner occupied          
Aged analysis of the company's loans          
Total Loans 892,342   892,342   871,801
CRE - non-owner occupied          
Aged analysis of the company's loans          
Total Loans 1,848,158   1,848,158   1,670,451
Commercial & industrial and other business loans          
Aged analysis of the company's loans          
Total Loans 1,348,263   1,348,263   1,274,029
Consumer mortgage          
Aged analysis of the company's loans          
Total Loans 3,629,301   3,629,301   3,617,186
Consumer indirect          
Aged analysis of the company's loans          
Total Loans 1,871,343   1,871,343   1,859,354
Consumer direct          
Aged analysis of the company's loans          
Total Loans 202,387   202,387   205,595
Consumer direct | Legacy Loan          
Aged analysis of the company's loans          
Total Loans         205,595
Nonaccrual         0
Consumer direct | Legacy Loan | Past Due 30 - 89 Days          
Aged analysis of the company's loans          
Total Loans         2,123
Consumer direct | Legacy Loan | 90+ Days Past Due and Still Accruing          
Aged analysis of the company's loans          
Total Loans         393
Consumer direct | Legacy Loan | Financial Asset, Past Due          
Aged analysis of the company's loans          
Total Loans         2,516
Consumer direct | Legacy Loan | Financial Asset, Not Past Due          
Aged analysis of the company's loans          
Total Loans         203,079
Home equity          
Aged analysis of the company's loans          
Total Loans 539,174   539,174   533,755
Business lending          
Aged analysis of the company's loans          
Total Loans 5,040,619   5,040,619   4,733,867
Business lending | Loans under 250,000          
Aged analysis of the company's loans          
Business lending loans 250,000   250,000    
Commercial Portfolio Segment | CRE - multifamily          
Aged analysis of the company's loans          
Total Loans 951,856   951,856   917,586
Commercial Portfolio Segment | CRE - multifamily | Legacy Loan          
Aged analysis of the company's loans          
Total Loans 951,856   951,856   917,586
Nonaccrual 437   437   437
Commercial Portfolio Segment | CRE - multifamily | Legacy Loan | Past Due 30 - 89 Days          
Aged analysis of the company's loans          
Total Loans 333   333   861
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   0
Commercial Portfolio Segment | CRE - multifamily | Legacy Loan | Financial Asset, Past Due          
Aged analysis of the company's loans          
Total Loans 770   770   1,298
Commercial Portfolio Segment | CRE - multifamily | Legacy Loan | Financial Asset, Not Past Due          
Aged analysis of the company's loans          
Total Loans 951,086   951,086   916,288
Commercial Portfolio Segment | CRE - owner occupied          
Aged analysis of the company's loans          
Total Loans 892,342   892,342   871,801
Commercial Portfolio Segment | CRE - owner occupied | Legacy Loan          
Aged analysis of the company's loans          
Total Loans 892,342   892,342   871,801
Nonaccrual 4,286   4,286   6,687
Commercial Portfolio Segment | CRE - owner occupied | Legacy Loan | Past Due 30 - 89 Days          
Aged analysis of the company's loans          
Total Loans 2,171   2,171   1,050
Commercial 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   0
Commercial Portfolio Segment | CRE - owner occupied | Legacy Loan | Financial Asset, Past Due          
Aged analysis of the company's loans          
Total Loans 6,457   6,457   7,737
Commercial Portfolio Segment | CRE - owner occupied | Legacy Loan | Financial Asset, Not Past Due          
Aged analysis of the company's loans          
Total Loans 885,885   885,885   864,064
Commercial Portfolio Segment | CRE - non-owner occupied          
Aged analysis of the company's loans          
Total Loans 1,848,158   1,848,158   1,670,451
Commercial Portfolio Segment | CRE - non-owner occupied | Legacy Loan          
Aged analysis of the company's loans          
Total Loans 1,848,158   1,848,158   1,670,451
Nonaccrual 1,795   1,795   87
Commercial Portfolio Segment | CRE - non-owner occupied | Legacy Loan | Past Due 30 - 89 Days          
Aged analysis of the company's loans          
Total Loans 587   587   399
Commercial 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   0
Commercial Portfolio Segment | CRE - non-owner occupied | Legacy Loan | Financial Asset, Past Due          
Aged analysis of the company's loans          
Total Loans 2,382   2,382   486
Commercial Portfolio Segment | CRE - non-owner occupied | Legacy Loan | Financial Asset, Not Past Due          
Aged analysis of the company's loans          
Total Loans 1,845,776   1,845,776   1,669,965
Commercial Portfolio Segment | Commercial & industrial and other business loans          
Aged analysis of the company's loans          
Total Loans 1,348,263   1,348,263   1,274,029
Commercial Portfolio Segment | Commercial & industrial and other business loans | Legacy Loan          
Aged analysis of the company's loans          
Total Loans 1,348,263   1,348,263   1,274,029
Nonaccrual 11,109   11,109   12,533
Commercial Portfolio Segment | Commercial & industrial and other business loans | Legacy Loan | Past Due 30 - 89 Days          
Aged analysis of the company's loans          
Total Loans 2,993   2,993   3,372
Commercial 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   0
Commercial Portfolio Segment | Commercial & industrial and other business loans | Legacy Loan | Financial Asset, Past Due          
Aged analysis of the company's loans          
Total Loans 14,102   14,102   15,905
Commercial Portfolio Segment | Commercial & industrial and other business loans | Legacy Loan | Financial Asset, Not Past Due          
Aged analysis of the company's loans          
Total Loans 1,334,161   1,334,161   1,258,124
Residential Portfolio Segment | Consumer mortgage          
Aged analysis of the company's loans          
Total Loans 3,629,301   3,629,301   3,617,186
Residential Portfolio Segment | Consumer mortgage | Legacy Loan          
Aged analysis of the company's loans          
Total Loans 3,629,301   3,629,301   3,617,186
Nonaccrual 29,590   29,590   27,686
Residential Portfolio Segment | Consumer mortgage | Legacy Loan | Past Due 30 - 89 Days          
Aged analysis of the company's loans          
Total Loans 30,620   30,620   28,206
Residential Portfolio Segment | Consumer mortgage | Legacy Loan | 90+ Days Past Due and Still Accruing          
Aged analysis of the company's loans          
Total Loans 4,917   4,917   4,497
Residential Portfolio Segment | Consumer mortgage | Legacy Loan | Financial Asset, Past Due          
Aged analysis of the company's loans          
Total Loans 65,127   65,127   60,389
Residential Portfolio Segment | Consumer mortgage | Legacy Loan | Financial Asset, Not Past Due          
Aged analysis of the company's loans          
Total Loans 3,564,174   3,564,174   3,556,797
Residential Portfolio Segment | Home equity          
Aged analysis of the company's loans          
Total Loans 539,174   539,174   533,755
Residential Portfolio Segment | Home equity | Legacy Loan          
Aged analysis of the company's loans          
Total Loans 539,174   539,174   533,755
Nonaccrual 2,473   2,473   2,079
Residential Portfolio Segment | Home equity | Legacy Loan | Past Due 30 - 89 Days          
Aged analysis of the company's loans          
Total Loans 3,080   3,080   3,861
Residential Portfolio Segment | Home equity | Legacy Loan | 90+ Days Past Due and Still Accruing          
Aged analysis of the company's loans          
Total Loans 1,183   1,183   1,006
Residential Portfolio Segment | Home equity | Legacy Loan | Financial Asset, Past Due          
Aged analysis of the company's loans          
Total Loans 6,736   6,736   6,946
Residential Portfolio Segment | Home equity | Legacy Loan | Financial Asset, Not Past Due          
Aged analysis of the company's loans          
Total Loans 532,438   532,438   526,809
Consumer Portfolio Segment | Consumer indirect          
Aged analysis of the company's loans          
Total Loans 1,871,343   1,871,343   1,859,354
Consumer Portfolio Segment | Consumer indirect | Legacy Loan          
Aged analysis of the company's loans          
Total Loans 1,871,343   1,871,343   1,859,354
Nonaccrual 0   0   0
Consumer Portfolio Segment | Consumer indirect | Legacy Loan | Past Due 30 - 89 Days          
Aged analysis of the company's loans          
Total Loans 19,459   19,459   24,052
Consumer Portfolio Segment | Consumer indirect | Legacy Loan | 90+ Days Past Due and Still Accruing          
Aged analysis of the company's loans          
Total Loans 859   859   1,052
Consumer Portfolio Segment | Consumer indirect | Legacy Loan | Financial Asset, Past Due          
Aged analysis of the company's loans          
Total Loans 20,318   20,318   25,104
Consumer Portfolio Segment | Consumer indirect | Legacy Loan | Financial Asset, Not Past Due          
Aged analysis of the company's loans          
Total Loans 1,851,025   1,851,025   1,834,250
Consumer Portfolio Segment | Consumer direct          
Aged analysis of the company's loans          
Total Loans 202,387   202,387   $ 205,595
Consumer Portfolio Segment | Consumer direct | Legacy Loan          
Aged analysis of the company's loans          
Total Loans 202,387   202,387    
Nonaccrual 0   0    
Consumer Portfolio Segment | Consumer direct | Legacy Loan | Past Due 30 - 89 Days          
Aged analysis of the company's loans          
Total Loans 1,839   1,839    
Consumer Portfolio Segment | Consumer direct | Legacy Loan | 90+ Days Past Due and Still Accruing          
Aged analysis of the company's loans          
Total Loans 153   153    
Consumer Portfolio Segment | Consumer direct | Legacy Loan | Financial Asset, Past Due          
Aged analysis of the company's loans          
Total Loans 1,992   1,992    
Consumer Portfolio Segment | Consumer direct | Legacy Loan | Financial Asset, Not Past Due          
Aged analysis of the company's loans          
Total Loans $ 200,395   $ 200,395