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v3.23.2

Segment Information - Reconciliation to Adjusted EBITDA (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Segment Reporting Information [Line Items] |  |  |  |
Income from continuing operations, net of income taxes | $ 204.1 | $ 411.3 | $ 488.2 | $ 291.5
Depreciation, depletion and amortization | 80.6 | 73.8 | 156.9 | 146.7
Asset retirement obligation expenses | 15.5 | 12.7 | 30.9 | 27.7
Restructuring charges | 2.0 | 0.2 | 2.1 | 1.8
Asset impairment | 0.0 | 0.0 | 2.0 | 0.0
Provision for NARM and Shoal Creek loss | 33.7 | 0.0 | 33.7 | 0.0
Changes in amortization of basis difference related to equity affiliates | (0.4) | (0.6) | (0.7) | (1.2)
Interest expense | 13.3 | 37.6 | 31.7 | 77.0
Net loss on early debt extinguishment | 2.0 | 2.3 | 8.8 | 25.8
Interest income | (23.1) | (0.9) | (36.2) | (1.4)
Unrealized (gains) losses on derivative contracts related to forecasted sales | (40.3) | 24.5 | (159.0) | 325.5
Unrealized (gains) losses on foreign currency option contracts | (2.8) | 6.3 | (0.6) | 3.0
Take-or-pay contract-based intangible recognition | (0.6) | (0.7) | (1.2) | (1.4)
Income tax provision | 74.2 | 11.3 | 192.2 | 10.3
Adjusted EBITDA | $ 358.2 | $ 577.8 | $ 748.8 | $ 905.3

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