INCOME TAXES - Computation of Differences Between Financial Statement Tax Expense And Amounts (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, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income taxes at statutory federal rate of 21%									$ 26,284	$ 24,663	$ 21,814
Increase (decrease) in taxes resulting from:
Tax exempt income									(4,438)	(2,822)	(1,925)
Nondeductible expense									159	116	117
State income tax, net of federal tax effect									671	1,288	944
Captive insurance premium income									(417)	(303)	(227)
Tax credits									(586)	(578)	(540)
Bank owned life insurance									(78)	(596)	(595)
Long-term incentive plan and deferred compensation									(530)	(274)	(58)
Nondeductible compensation expense									181	156	0
Other									101	61	9
Total income tax expense	$ 4,987	$ 6,237	$ 5,584	$ 4,539	$ 5,507	$ 5,469	$ 5,705	$ 5,030	$ 21,347	$ 21,711	$ 19,539