INCOME TAXES AND DEFERRED TAXES INCOME TAXES AND DEFERRED TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Tax credit investments	$ 104,590		$ 104,590		$ 71,430
Unfunded commitments—tax credit investments	65,035		65,035		$ 44,563
Tax credits and other tax benefits recognized	2,134	$ 1,458	6,403	$ 4,374
Tax credit amortization expense included in provision for income taxes	1,887	$ 1,173	5,331	$ 3,744
Unrecognized Tax Benefits	$ 1,600		$ 1,600