INCOME TAXES (Schedule of Income Tax Expense, Difference in Income Tax Rate to Pretax Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred Tax Assets, Net [Abstract]
Computed expected tax expense	$ 66,939	$ 39,122	$ 48,564
Tax-exempt interest income, net	(9,820)	(8,844)	(8,259)
State income tax benefit	(1,039)	(310)	(1,078)
Other, net	(1,238)	(1,902)	(1,670)
Income tax expense	$ 54,842	$ 28,066	$ 37,557