COMMITMENTS AND CONTINGENCIES - Schedule of Total Environmental Liabilities (Detail) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Total environmental liabilities	$ 3.6	$ 31.9
Accrued Liabilities
Loss Contingencies [Line Items]
Total environmental liabilities	1.7	4.7
Other Long-term Liabilities
Loss Contingencies [Line Items]
Total environmental liabilities	$ 1.9	$ 27.2