LEASES - Additional Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) numberOfLeases	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) numberOfLeases	Jun. 30, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 7.6	$ 5.6	$ 15.3	$ 10.8
Weighted-average remaining lease term, operating leases	5 years 2 months 12 days		5 years 2 months 12 days
Weighted-average discount rate, operating leases	5.48%		5.48%
Number of operating leases not yet commenced | numberOfLeases	1		1
Operating lease term	15 years		15 years
Lease not yet commenced, future minimum payment due	$ 22.9		$ 22.9