EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Basic earnings per share
Net income	$ 16,893	$ 16,882	$ 52,422	$ 44,256
Weighted average common shares outstanding (in shares)	25,433,307	25,507,814	25,452,398	25,607,986
Basic earnings per common share (in dollars per share)	$ 0.66	$ 0.66	$ 2.06	$ 1.73
Diluted earnings per share
Net income	$ 16,893	$ 16,882	$ 52,422	$ 44,256
Weighted average common shares outstanding for basic earnings per common share (in shares)	25,433,307	25,507,814	25,452,398	25,607,986
Add: Dilutive effects of restricted stock and options (in shares)	268,716	221,229	279,606	197,494
Average shares and dilutive potential common shares (in shares)	25,702,023	25,729,043	25,732,004	25,805,480
Diluted earnings per common share (in dollars per share)	$ 0.66	$ 0.66	$ 2.04	$ 1.71
Securities excluded from the computation of diluted earnings per common share	0	0	0	0