EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Retirement Benefits [Abstract]
Expected employer contribution	$ 2.0		$ 2.0
Components of net pension expense
Service cost	1.1	$ 1.0	3.2	$ 3.0
Interest cost	1.8	2.1	5.5	6.4
Expected return on plan assets	(3.0)	(2.9)	(9.0)	(8.6)
Recognized net actuarial loss	0.9	0.6	3.0	2.2
Net pension expense	$ 0.8	$ 0.8	$ 2.7	$ 3.0