LEASES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Leases [Abstract]
Operating lease cost	$ 7.4		$ 21.5
Weighted-average remaining lease term, operating leases	5 years 3 months 19 days		5 years 3 months 19 days
Weighted-average discount rate, operating leases	5.41%		5.41%
Financing leases outstanding	$ 0.8		$ 0.8
Incurred rent expense		$ 4.5		$ 13.0