LEASES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease cost	$ 13.1	$ 12.0	$ 11.4
Related party rent expense	1.0	1.0	1.0
Sublease income	1.7	$ 1.9	$ 0.2
Sublease agreements less then one year	1.3
Sublease agreements between one and three years	$ 0.5