Quarterly report pursuant to Section 13 or 15(d)

BORROWINGS (Narrative) (Details)

v3.22.2.2
BORROWINGS (Narrative) (Details) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Subordinated Borrowing [Line Items]      
Remaining available balance for the federal funds lines $ 1,000,000   $ 997,000
Maximum collateral dependent line of credit with the FHLB 5,900,000   6,000,000
Trust Preferred Capital Securities 150,500   150,500
Fair value discount 15,583   16,435
Subordinated Debt 250,000   250,000
Long-term debt, early repayments 0 $ 214,695  
Remaining borrowing capacity 25,000   25,000
Acquired Trust Preferred Capital Notes      
Subordinated Borrowing [Line Items]      
Fair value discount 12,700   13,300
2026 Subordinate Debt      
Subordinated Borrowing [Line Items]      
Subordinated Debt     $ 150,000
Stated percentage on debt instrument     5.00%
2031 Subordinate Debt      
Subordinated Borrowing [Line Items]      
Proceeds from issuance of long-term borrowings     $ 246,900
Subordinated Debt $ 250,000   $ 250,000
Stated percentage on debt instrument 2.875%   2.875%
Three-month LIBOR rate plus 0.00%   0.00%
Maturity date Dec. 15, 2031   Dec. 15, 2031
Previous bank acquisitions | Trust Preferred Capital Notes      
Subordinated Borrowing [Line Items]      
Trust Preferred Capital Securities $ 58,500    
Previous bank acquisitions | Acquired Trust Preferred Capital Notes      
Subordinated Borrowing [Line Items]      
Trust Preferred Capital Securities $ 92,000