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Other Events | 6 Months Ended
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Jun. 30, 2021
Other Events [Abstract] |
Other Events | Other Events From time to time, the Company initiates restructuring activities in connection with its repositioning efforts to appropriately align its cost structure or optimize its coal production relative to prevailing market conditions. Costs associated with restructuring actions can include the impact of early mine closures, voluntary and involuntary workforce reductions, office closures and other related activities. Costs associated with restructuring activities are recognized in the period incurred. Such charges included as “Restructuring charges” in the Company's unaudited condensed consolidated statements of operations amounted to $2.1 million and $4.2 million for the three and six months ended June 30, 2021, respectively, and $16.5 million and $23.0 million for the three and six months ended June 30, 2020, respectively, were associated with both involuntary and voluntary workforce reductions. The Shoal Creek Mine remains idled as the Company continues activities to increase productivity, lower costs and improve yields from the operation in the future. The preparation plant upgrade project remains on schedule with completion expected in the middle of the third quarter of 2021. The Shoal Creek labor contract expired in April 2021, and negotiations with the workforce are ongoing. The Metropolitan Mine full workforce returned to the mine in early May. Development work at the mine has been ongoing and longwall production restarted late in the second quarter of 2021, with a ramp up to planned production levels in the third quarter of 2021. The underground workforce enterprise agreement expired in January 2021 and after a period of ongoing negotiation, an application was made to terminate the underground labor agreement. That application is pending. Subsequent to June 30, 2021, the Company executed transactions to sell its closed Millennium and Wilkie Creek Mines to reduce its closed mine reclamation liabilities and associated costs. The Company is in process of assessing the financial impacts of the sales, but anticipates recording cumulative gains of $40 million to $50 million in the third quarter of 202

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