v3.26.1
LOANS AND CREDIT QUALITY - Aging of the Amortized Cost in Past Due Loans (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables $ 13,576,196 $ 14,176,936
30-59 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 25,973 43,873
60-89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 28,556 14,586
Greater than 89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 40,888 34,686
Total Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 95,417 93,145
Loans Not Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 13,480,779 14,083,791
Commercial and industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 439,814 482,170
Commercial and industrial | 30-59 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 997 3,277
Commercial and industrial | 60-89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 89 1,066
Commercial and industrial | Greater than 89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 9,344 8,024
Commercial and industrial | Total Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 10,430 12,367
Commercial and industrial | Loans Not Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 429,384 469,803
Commercial real estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 5,223,356 5,355,252
Commercial real estate | Multifamily | 30-59 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 0 0
Commercial real estate | Multifamily | 60-89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 3,685 0
Commercial real estate | Multifamily | Greater than 89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 1,724 1,614
Commercial real estate | Multifamily | Total Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 5,409 1,614
Commercial real estate | Multifamily | Loans Not Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 5,217,947 5,353,638
Commercial real estate | Non-owner occupied    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 1,614,883 1,740,277
Commercial real estate | Non-owner occupied | 30-59 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 7,666 50
Commercial real estate | Non-owner occupied | 60-89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 12,759 0
Commercial real estate | Non-owner occupied | Greater than 89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 0 11,586
Commercial real estate | Non-owner occupied | Total Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 20,425 11,636
Commercial real estate | Non-owner occupied | Loans Not Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 1,594,458 1,728,641
Commercial real estate | Owner occupied    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 512,474 689,079
Commercial real estate | Owner occupied | 30-59 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 448 0
Commercial real estate | Owner occupied | 60-89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 0 1,349
Commercial real estate | Owner occupied | Greater than 89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 264 226
Commercial real estate | Owner occupied | Total Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 712 1,575
Commercial real estate | Owner occupied | Loans Not Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 511,762 687,504
Commercial real estate | Construction and land development    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 360,668 493,992
Commercial real estate | Construction and land development | 30-59 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 389 0
Commercial real estate | Construction and land development | 60-89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 0 0
Commercial real estate | Construction and land development | Greater than 89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 15,312 2,962
Commercial real estate | Construction and land development | Total Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 15,701 2,962
Commercial real estate | Construction and land development | Loans Not Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 344,967 491,030
Residential real estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 4,107,867 3,970,803
Residential real estate | 30-59 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 1,161 14,274
Residential real estate | 60-89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 7,359 4,944
Residential real estate | Greater than 89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 12,368 7,187
Residential real estate | Total Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 20,888 26,405
Residential real estate | Loans Not Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 4,086,979 3,944,398
Auto    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 510,232 791,012
Auto | 30-59 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 15,078 25,984
Auto | 60-89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 4,499 7,078
Auto | Greater than 89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 1,860 3,086
Auto | Total Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 21,437 36,148
Auto | Loans Not Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 488,795 754,864
Other consumer    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 806,902 654,351
Other consumer | 30-59 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 234 288
Other consumer | 60-89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 165 149
Other consumer | Greater than 89 Days Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 16 1
Other consumer | Total Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables 415 438
Other consumer | Loans Not Past Due    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan receivables $ 806,487 $ 653,913