XML 48 R32.htm IDEA: XBRL DOCUMENT v3.19.1
MISCELLANEOUS OTHER INCOME (Tables)
3 Months Ended
Mar. 31, 2019
Other Income and Expenses [Abstract]  
Schedule of Miscellaneous Other Income
 
For the Three Months Ended March 31,
 
2019
 
2018
Royalty Income - Non-Operated Coal
$
6,210

 
$
9,806

Purchased Coal Sales
3,186

 
8,746

Property Easements and Option Income
979

 
4,151

Interest Income
887

 
601

Rental Income
617

 
1,122

Other
1,413

 
1,461

Miscellaneous Other Income
$
13,292

 
$
25,887