CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - UNAUDITED - (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Stockholders' Equity [Abstract]
Common stock dividends (in dollars per share)	$ 0.32	$ 0.30	$ 0.64	$ 0.60
Stock issued during period (in shares)		12,768,949		12,768,949
Converted options from Revere acquisition (in shares)		395,298		395,298
Stock option plan (in shares)	38,158	2,625	140,523	8,638
Employee stock purchase plan (in shares)	17,258	20,198	37,675	28,815
Restricted stock (in shares)	70,177	44,578	78,007	44,578
Stock repurchased and retired (in shares)				820,328