INCOME TAXES (Effective tax rate reconciliation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
U.S. Federal statutory rate	21.00%	21.00%	21.00%
State income taxes, net of federal benefit	2.30%	2.90%	1.70%
Foreign operations	(0.70%)	(0.50%)	0.20%
R&D tax credits	(0.40%)	(0.40%)	(0.50%)
Uncertain tax position adjustments	(0.10%)	0.10%	0.20%
Valuation allowance on state and foreign deferred tax	(0.20%)	(0.60%)	(0.60%)
Share-based compensation	(1.00%)	(0.70%)	(2.30%)
Other items	(0.10%)	(0.50%)	(0.60%)
Foreign Derived Intangible Income	(2.40%)	(2.60%)	(1.90%)
Nondeductible officers compensation	1.20%	1.00%	1.10%
Effective tax rate	19.60%	19.70%	18.30%
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Amount	$ 3.2	$ 2.1	$ 5.0