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v3.21.2

Segment Information - Reconciliation to Adjusted EBITDA (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |
Loss from continuing operations, net of income taxes | $ (59.6) | $ (64.8) | $ (160.3) | $ (1,739.4)
Depreciation, depletion and amortization | 77.9 | 72.2 | 223.3 | 266.5
Asset retirement obligation expenses | 14.3 | 14.3 | 45.3 | 46.0
Restructuring charges | 1.7 | 8.1 | 5.9 | 31.1
Transaction costs related to joint ventures | 0.0 | 6.0 | 0.0 | 23.1
Asset impairment | 0.0 | 0.0 | 0.0 | 1,418.1
Changes in deferred tax asset valuation allowance and reserves and amortization of basis difference related to equity affiliates | (6.4) | (0.5) | (8.4) | (1.6)
Interest expense | 45.5 | 34.9 | 143.3 | 102.3
Net gain on early debt extinguishment | (16.0) | 0.0 | (31.3) | 0.0
Interest income | (1.4) | (1.6) | (4.2) | (7.1)
Defined Benefit Plan, Net Mark-To-Market Adjustment on Actuarially Determined Liabilities | 0.0 | 13.0 | 0.0 | 13.0
Unrealized losses on derivative contracts related to forecasted sales | 238.4 | 16.1 | 264.0 | 11.3
Unrealized (gains) losses on foreign currency option contracts | (0.6) | (0.7) | 8.2 | (3.6)
Take-or-pay contract-based intangible recognition | (1.0) | (1.5) | (3.2) | (6.8)
Income tax (benefit) provision | (3.7) | (0.1) | (10.3) | 2.7
Adjusted EBITDA | $ 289.1 | $ 95.4 | $ 472.3 | $ 155.6

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