INCOME TAXES - Reconciliation of Federal Income Tax Statutory Rates (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income taxes at statutory rate													$ 16,525	$ 17,027	$ 13,244
Income taxes at statutory rate (in percent)													21.00%	21.00%	21.00%
Tax-exempt income, net													$ (2,369)	$ (1,692)	$ (1,868)
Tax-exempt income, net (in percent)													(3.00%)	(2.00%)	(2.00%)
Bargain purchase gain													$ 0	$ 0	$ (1,645)
Bargain purchase gain (in percent)													0.00%	0.00%	(3.00%)
Nondeductible expenses													$ 391	$ 29	$ 188
Nondeductible expenses, (in percent)													0.00%	0.00%	0.00%
State income tax, net of federal tax effect													$ 2,251	$ 2,299	$ 1,600
State income tax, net of federal tax effect, (in percent)													3.00%	3.00%	3.00%
Federal tax credits, net													$ (715)	$ (715)	$ (715)
Federal tax credits, net (in percent)													(1.00%)	(1.00%)	(1.00%)
Other, net													$ (313)	$ (33)	$ (241)
Other, net, (in percent)													0.00%	0.00%	(1.00%)
Total income tax expense	$ 4,012	$ 3,924	$ 3,457	$ 4,377	$ 3,873	$ 4,429	$ 3,820	$ 4,793	$ 3,642	$ 2,993	$ 2,241	$ 1,687	$ 15,770	$ 16,915	$ 10,563
Total income tax expense (in percent)													17.00%	17.00%	17.00%