CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY - Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income	$ 43,557	$ 39,299	$ 33,244
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Net cash provided by operating activities	57,601	60,478	20,684
Cash flows from investing activities:
Net cash (used in) provided by investing activities	(410,580)	(6,062)	160,236
Cash flows from financing activities:
Net cash provided by (used in) financing activities	194,885	(30,034)	(11,823)
Net change in cash and cash equivalents	(158,094)	24,382	169,097
Cash and cash equivalents at beginning of year	250,389	226,007	56,910
Cash and cash equivalents at end of period	92,295	250,389	226,007
Parent Company
Cash flows from operating activities:
Net income	43,557	39,299	33,244
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Equity in undistributed income of subsidiaries	(28,355)	(29,348)	(30,153)
Other, net	3,187	(5,582)	3,840
Net cash provided by operating activities	18,389	4,369	6,931
Cash flows from financing activities:
Net proceeds from common stock	1,723	1,534	2,192
Net proceeds from reissuance of treasury stock			(14,188)
Common stock cash dividends paid	(15,334)	(14,072)	(13,417)
Net cash provided by (used in) financing activities	(13,611)	(12,538)	(25,413)
Net change in cash and cash equivalents	4,778	(8,169)	(18,482)
Cash and cash equivalents at beginning of year	2,572	10,741	29,223
Cash and cash equivalents at end of period	$ 7,350	$ 2,572	$ 10,741