INCOME TAXES (Schedule of Effective Income Tax Rate Reconciliation) (Details)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Federal income tax rate applied to pre-tax income (loss)	21.00%	21.00%
Dividends received deduction and tax-exempt interest	(0.30%)	0.30%
Company owned life insurance	1.30%	(5.10%)
Other, net	(0.10%)	(0.10%)
Effective federal income tax rate	21.90%	16.10%