LEASES - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease cost	$ 30.8	$ 25.8
Weighted-average remaining lease term, operating leases	6 years 8 months 12 days
Weighted-average discount rate, operating leases	5.18%
Right of use asset obtained in exchange for operating lease liabilities	$ 29.1
Incurred rent expense			$ 17.3