INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Operating Loss Carryforwards [Line Items]
Income tax benefit (expense)	$ 0.7	$ (4.3)	$ 5.4	$ 0.6
Income taxes receivable	$ 18.7		$ 18.7		$ 5.8
Coronavirus Aid, Relief and Economic Security (CARES Act), Interest Limitation
Operating Loss Carryforwards [Line Items]
Income tax benefit (expense)				$ 3.2