DERIVATIVE FINANCIAL INSTRUMENTS (Fair Value of Hedged Items) (Details) $ in Millions	Dec. 31, 2020 USD ($) counterparty	Dec. 31, 2019 USD ($) counterparty
Derivatives, Fair Value [Line Items]
Number of counterparties (in counterparties) \| counterparty		2
Commodity contracts
Derivatives, Fair Value [Line Items]
Netting of contracts in a receivable position against contracts in payable position	$ 0.3	$ 0.4
Number of counterparties (in counterparties) \| counterparty	2
Swap contracts
Derivatives, Fair Value [Line Items]
Number of counterparties (in counterparties) \| counterparty	1
Derivatives designated as hedging instruments
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 3.1	3.2
Liability Derivatives	0.3	1.0
Derivatives designated as hedging instruments \| Commodity contracts \| Other current assets
Derivatives, Fair Value [Line Items]
Asset Derivatives	0.4	0.3
Derivatives designated as hedging instruments \| Commodity contracts \| Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	0.1	0.8
Derivatives designated as hedging instruments \| Commodity contracts \| Other assets
Derivatives, Fair Value [Line Items]
Asset Derivatives	0.1	0.1
Derivatives designated as hedging instruments \| Commodity contracts \| Other noncurrent liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	0.2	0.2
Derivatives designated as hedging instruments \| Swap contracts \| Other current assets
Derivatives, Fair Value [Line Items]
Asset Derivatives	2.6	2.8
Derivatives designated as hedging instruments \| Swap contracts \| Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 0.0	$ 0.0

The number of counterparties with which the Company has derivative agreements.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, after effects of master netting arrangements, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset offset against an obligation to return collateral. Includes assets not subject to a master netting arrangement and not elected to be offset.

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