SHARE-BASED COMPENSATION (Additional Stock Option Information) (Details) - Stock Options - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation
Intrinsic value of options exercised	$ 11.6	$ 3.7	$ 20.7
Cash received from the exercise of options	9.2	3.9	15.5
Fair value of shares vested	3.1	3.1	3.9
Tax benefit of options exercised	2.9	$ 0.9	$ 5.1
Unrecognized compensation cost related to nonvested share-based compensation	$ 0.9
Unrecognized compensation cost, recognized over a weighted-average period	1 year 3 months 10 days