CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Common stock dividends (in dollars per share)	$ 1.36	$ 1.28	$ 1.20
Revere Bank acquisition (in shares)			12,768,949
Stock option plan (in shares)	14,278	270,297	26,063
Conversion of Revere stock options (in shares)			395,298
Employee stock purchase plan (in shares)	43,837	60,018	65,337
Restricted stock vesting, net of tax withholding (in shares)	105,719	81,838	46,386
Stock repurchased and retired (in shares)	625,710	2,350,000	820,328
Accounting Standards Update [Extensible Enumeration]				Accounting Standards Update 2016-13 [Member]