v3.26.1
FAIR VALUE OF FINANCIAL INSTRUMENTS (Estimated Fair Value and Carrying Value) (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Financial Assets:        
Trading securities $ 24 $ 23    
Investment securities held-to-maturity 219,848 225,065    
Servicing assets 67,228 66,333 $ 69,238 $ 70,435
Level 1 | Fair Value        
Financial Assets:        
Cash and cash equivalents 636,499 1,040,335    
Investment securities available-for-sale 2,131 1,651    
Level 1 | Carrying Value        
Financial Assets:        
Cash and cash equivalents 636,499 1,040,335    
Investment securities available-for-sale 2,131 1,651    
Level 2 | Fair Value        
Financial Assets:        
Trading securities 24 23    
Investment securities available-for-sale 2,458,041 2,509,231    
Investment securities held-to-maturity 219,848 225,065    
Federal Home Loan Bank (FHLB) stock 27,421 27,421    
Equity securities 36,261 35,317    
Level 2 | Carrying Value        
Financial Assets:        
Trading securities 24 23    
Investment securities available-for-sale 2,458,041 2,509,231    
Investment securities held-to-maturity 264,580 269,498    
Federal Home Loan Bank (FHLB) stock 27,421 27,421    
Equity securities 36,261 35,317    
Level 3 | Fair Value        
Financial Assets:        
Total loans, net (including loans held-for-sale) 8,015,873 8,002,176    
Accrued interest receivable 69,685 71,110    
Servicing assets 67,228 66,333    
Accounts receivable and other assets 73,250 68,371    
Financial Liabilities:        
Deposits 9,918,756 10,281,789    
Securities sold under agreements to repurchase 100,008 100,037    
Advances from FHLB 456,134 457,679    
Other borrowings 0 9    
Accrued expenses and other liabilities 229,979 209,997    
Level 3 | Carrying Value        
Financial Assets:        
Total loans, net (including loans held-for-sale) 8,040,074 8,014,246    
Accrued interest receivable 69,685 71,110    
Servicing assets 67,228 66,333    
Accounts receivable and other assets 73,250 68,371    
Financial Liabilities:        
Deposits 9,849,272 10,262,752    
Securities sold under agreements to repurchase 100,086 100,714    
Advances from FHLB 456,581 456,581    
Other borrowings 0 9    
Accrued expenses and other liabilities $ 229,979 $ 209,997