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Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES - Contingencies (Details)

v3.20.2
COMMITMENTS AND CONTINGENCIES - Contingencies (Details) - USD ($)
$ in Millions
Sep. 30, 2020
Dec. 31, 2019
Loss Contingencies [Line Items] Ìý Ìý
Environmental obligations $ 40.9 $ 2.0
Less current portion 6.4 0.3
Long-term environmental obligations 34.5 $ 1.7
Hamilton Plant [Member] Ìý Ìý
Loss Contingencies [Line Items] Ìý Ìý
Environmental obligations 0.7 Ìý
Ashland Works Coke Plant [Member] Ìý Ìý
Loss Contingencies [Line Items] Ìý Ìý
Environmental obligations $ 1.4 Ìý