INCOME TAXES - Components of Federal Corporate Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Current income tax expense	$ 46,712	$ 35,609	$ 38,645
Deferred income tax expense	6,386	11,926	(2,273)
Income tax expense	$ 53,098	$ 47,535	$ 36,372