LEASES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Operating lease cost	$ 7.8	$ 7.6	$ 22.3	$ 23.0
Weighted-average remaining lease term, operating leases	6 years 5 months 8 days		6 years 5 months 8 days
Weighted-average discount rate, operating leases	5.09%		5.09%
Increase in operating lease right-of-use asset and lease liabilities	$ 14.5	$ 20.1	$ 14.5	$ 20.1