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Discontinued Operations (Tables)
12 Months Ended
Dec. 31, 2019
Discontinued Operations and Disposal Groups [Abstract]  
Schedule of Financial Information for Divested Business Within Discontinued Operations
The following table details selected financial information for the divested business included within discontinued operations:
 
For the Year Ended
  
December 31, 2017
Coal Revenue
$
1,067,841

Other Outside Sales
60,066

Freight-Outside Coal
66,297

Miscellaneous Other Income
73,645

Total Revenue and Other Income
1,267,849

Total Costs
1,147,254

Income from Operations Before Income Taxes
120,595

Income Tax Expense
23,984

Less: Net Income Attributable to Noncontrolling Interest
10,903

Income from Discontinued Operations, net
$
85,708