CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 1.20	$ 1.13	$ 1.12
Treasury stock issued for restricted stock awards (in shares)	4,250	130,670	230,703
Forfeitures of restricted stock awards (in shares)	87,208	77,483	81,570
Repurchase of S&T Stock (in shares)	268,503	0	411,430