CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income / (Loss)	Total
Balance at Dec. 31, 2020	$ 493,707	$ 94,899	$ (10,717)	$ 577,889
Balance (in shares) at Dec. 31, 2020	59,917,457
Increase (Decrease) in Shareholders' Equity
Net income		11,204		11,204
Other comprehensive loss			(551)	(551)
Issuance (forfeitures) of restricted stock awards, net (in shares)	(34,358)
Amortization of restricted stock awards, net of forfeitures and taxes	$ 458			458
Cash dividend declared		(7,789)		(7,789)
Stock option expense, net of forfeitures and taxes	132			132
Stock options exercised	$ 320			320
Stock options exercised (in shares)	49,235
Balance at Mar. 31, 2021	$ 494,617	98,314	(11,268)	581,663
Balance (in shares) at Mar. 31, 2021	59,932,334
Balance at Dec. 31, 2020	$ 493,707	94,899	(10,717)	577,889
Balance (in shares) at Dec. 31, 2020	59,917,457
Increase (Decrease) in Shareholders' Equity
Net income				33,735
Other comprehensive loss			(989)	(989)
Balance at Sep. 30, 2021	$ 496,622	91,484	(11,706)	590,118
Balance (in shares) at Sep. 30, 2021	60,266,316
Balance at Mar. 31, 2021	$ 494,617	98,314	(11,268)	581,663
Balance (in shares) at Mar. 31, 2021	59,932,334
Increase (Decrease) in Shareholders' Equity
Net income		8,813		8,813
Other comprehensive loss			(264)	(264)
Issuance of restricted stock awards, net (in shares)	187,325
Amortization of restricted stock awards, net of forfeitures and taxes	$ 438			438
Cash dividend declared		(7,816)		(7,816)
Stock option expense, net of forfeitures and taxes	146			146
Stock options exercised	$ 464			464
Stock options exercised (in shares)	83,107
Balance at Jun. 30, 2021	$ 495,665	99,311	(11,532)	583,444
Balance (in shares) at Jun. 30, 2021	60,202,766
Increase (Decrease) in Shareholders' Equity
Net income		13,718		13,718
Other comprehensive loss			(174)	(174)
Amortization of restricted stock awards, net of forfeitures and taxes	$ 522			522
Cash dividend declared		(7,827)		(7,827)
Stock option expense, net of forfeitures and taxes	150			150
Stock options exercised	$ 285			285
Stock options exercised (in shares)	63,550
Balance at Sep. 30, 2021	$ 496,622	91,484	(11,706)	590,118
Balance (in shares) at Sep. 30, 2021	60,266,316
Balance at Dec. 31, 2021	$ 497,695	111,329	(10,996)	598,028
Balance (in shares) at Dec. 31, 2021	60,339,837
Increase (Decrease) in Shareholders' Equity
Net income		12,866		12,866
Other comprehensive loss			(3,058)	(3,058)
Amortization of restricted stock awards, net of forfeitures and taxes	$ 518			518
Cash dividend declared		(7,848)		(7,848)
Stock option expense, net of forfeitures and taxes	149			149
Stock options exercised	$ 401			401
Stock options exercised (in shares)	68,009
Balance at Mar. 31, 2022	$ 498,763	116,347	(14,054)	601,056
Balance (in shares) at Mar. 31, 2022	60,407,846
Balance at Dec. 31, 2021	$ 497,695	111,329	(10,996)	598,028
Balance (in shares) at Dec. 31, 2021	60,339,837
Increase (Decrease) in Shareholders' Equity
Net income				45,756
Other comprehensive loss			(14,216)	(14,216)
Balance at Sep. 30, 2022	$ 501,240	133,489	(25,212)	609,517
Balance (in shares) at Sep. 30, 2022	60,716,794
Balance at Mar. 31, 2022	$ 498,763	116,347	(14,054)	601,056
Balance (in shares) at Mar. 31, 2022	60,407,846
Increase (Decrease) in Shareholders' Equity
Net income		14,821		14,821
Other comprehensive loss			(1,864)	(1,864)
Issuance of restricted stock awards, net (in shares)	189,305
Amortization of restricted stock awards, net of forfeitures and taxes	$ 477			477
Cash dividend declared		(7,858)		(7,858)
Stock option expense, net of forfeitures and taxes	144			144
Stock options exercised	$ 448			448
Stock options exercised (in shares)	69,643
Balance at Jun. 30, 2022	$ 499,832	123,310	(15,918)	607,224
Balance (in shares) at Jun. 30, 2022	60,666,794
Increase (Decrease) in Shareholders' Equity
Net income		18,069		18,069
Other comprehensive loss			(9,294)	(9,294)
Issuance of restricted stock awards, net (in shares)	37,000
Amortization of restricted stock awards, net of forfeitures and taxes	$ 1,234			1,234
Cash dividend declared		(7,890)		(7,890)
Stock option expense, net of forfeitures and taxes	153			153
Stock options exercised	$ 21			21
Stock options exercised (in shares)	13,000
Balance at Sep. 30, 2022	$ 501,240	$ 133,489	$ (25,212)	$ 609,517
Balance (in shares) at Sep. 30, 2022	60,716,794