CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Debt securities, AFS, amortized cost	$ 1,119,034,000	$ 1,164,227,000
Debt securities, AFS, allowance for credit loss	0	0
Debt securities, HTM, allowance for credit loss	0	0
Debt securities, HTM, fair value	537,275,000	615,944,000
Allowance for credit loss	$ 56,205,000	$ 54,032,000
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	80,000,000	80,000,000
Common stock, shares issued (in shares)	32,409,962	32,338,983
Treasury stock (in shares)	1,249,607	1,249,607