CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 0.32	$ 0.30	$ 0.64	$ 0.59
Treasury stock issued for restricted stock awards (in shares)	32,041		32,041	4,250
Forfeitures of restricted stock awards (in shares)	48,853	51,469	50,430	55,225
Repurchase of S&T Stock (in shares)	739,426	151,220	739,426	151,220
Treasury stock issued for restricted stock awards	$ 0		$ 0	$ 0