CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 0.30	$ 0.28	$ 0.89	$ 0.84
Treasury stock issued for restricted stock awards (in shares)		25,459	4,250	125,170
Forfeitures of restricted stock awards (in shares)	18,943	3,331	74,168	55,330
Repurchase of S&T Stock (in shares)	117,283	0	268,503	0