PARENT COMPANY CONDENSED FINANCIAL STATEMENTS - Schedule of Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks	$ 222,517	$ 688,027
Land and headquarters building, net	66,147	69,522
Other assets	86,697	45,728
TOTAL ASSETS	4,989,281	5,175,099
LIABILITIES AND SHAREHOLDERS' EQUITY
Other liabilities	64,653	73,643
TOTAL LIABILITIES	4,513,988	4,592,523
Shareholders' Equity	475,293	582,576	$ 596,992	$ 547,125
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	4,989,281	5,175,099
Parent
ASSETS
Cash and due from banks	60,692	13,844
Investments in subsidiaries	412,570	571,986
Land and headquarters building, net	9,116	4,423
Other assets	42,120	7,518
TOTAL ASSETS	524,498	597,771
LIABILITIES AND SHAREHOLDERS' EQUITY
Dividends payable	8,912	7,952
Other liabilities	40,293	7,243
TOTAL LIABILITIES	49,205	15,195
Shareholders' Equity	475,293	582,576
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 524,498	$ 597,771