Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Balance at beginning of period at Dec. 31, 2020	$ 763,784	$ 562,421	$ 191,418	$ (1,452)	$ 11,397
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	23,175		23,175
Other comprehensive loss, net of tax	(13,088)				(13,088)
Stock based compensation	1,206	1,206
Retirement of restricted stock	(656)	(656)
Exercise of stock options	13	13
Cash dividends on common stock	(6,369)		(6,369)
Balance at end of period at Mar. 31, 2021	768,065	562,984	208,224	(1,452)	(1,691)
Balance at beginning of period at Dec. 31, 2021	827,014	565,862	259,340	(1,452)	3,264
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	15,929		15,929
Other comprehensive loss, net of tax	(31,100)				(31,100)
Issuance of stock for 1st Constitution acquisition	285,742	285,742
Stock based compensation	1,439	1,439
Retirement of restricted stock	(933)	(933)
Cash dividends on common stock	(8,809)		(8,809)
Balance at end of period at Mar. 31, 2022	$ 1,089,282	$ 852,110	$ 266,460	$ (1,452)	$ (27,836)