COMMITMENTS AND CONTINGENCIES - Schedule of Environmental Remediation Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Accrued liabilities - other	$ 0.4	$ 4.7
Other long-term liabilities	0.0	27.2
Total environmental liabilities	$ 0.4	$ 31.9

Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

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