REVENUES (Reconciliation of Deferred Revenue Balances) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
REVENUES [Abstract]
Balance at beginning of period	$ 159.8	$ 168.1	$ 161.8	$ 170.1
Revenue recognized from deferred revenue	(2.4)	(2.2)	(4.4)	(4.2)
Balance at end of period	$ 157.4	$ 165.9	$ 157.4	$ 165.9