Total costs accrued as of the balance sheet date for environmental loss contingencies.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Name:	us-gaap_AccrualForEnvironmentalLossContingencies
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

COMMITMENTS AND CONTINGENCIES - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Apr. 06, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Environmental remediation liabilities	$ 3.1		$ 31.9
Assets and Liabilities Held for Sale, Not Discontinued Operations
Loss Contingencies [Line Items]
Environmental remediation liabilities		$ 27.5