CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Allowance for credit losses	$ 29,235	$ 30,433
Preferred stock, par value (in USD per share)	$ 5.00	$ 5.00
Preferred stock, shares authorized (in shares)	15,000,000	15,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in USD per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	14,182,258	14,138,978
Common stock, shares outstanding (in shares)	11,915,372	12,122,717
Treasury stock (in shares)	2,266,886	2,016,261