DEBT - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Cash and cash equivalents	$ 338.5	$ 104.3
COVID-19
Debt Instrument [Line Items]
Percentage of employees furloughed	40.00%
Percentage reduction in Board and committee compensation	50.00%
Minimum | COVID-19
Debt Instrument [Line Items]
Percentage reduction in executive and employee compensation	20.00%
Maximum | COVID-19
Debt Instrument [Line Items]
Percentage reduction in executive and employee compensation	40.00%
2020 Refinancing Transactions
Debt Instrument [Line Items]
Cash on hand	$ 276.4
Foreign Subsidiaries
Debt Instrument [Line Items]
Cash and cash equivalents	$ 62.1