XML 94 R78.htm IDEA: XBRL DOCUMENT v3.19.1
STOCK, UNIT AND DEBT REPURCHASE (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Jul. 31, 2018
Dec. 31, 2017
Nov. 30, 2017
Class of Stock [Line Items]          
Aggregate authorized amount       $ 50,000,000  
Stock and debt repurchase authorized amount     $ 100,000,000    
Stock repurchased (in shares) 0 44,000      
Stock repurchase price (in dollars per share)   $ 29.19      
Senior Notes | Senior Secured Notes due 2025          
Class of Stock [Line Items]          
Stated interest rate (as a percent)     11.00% 11.00%  
Senior Notes | Senior Secured Second Lien Notes due 2025          
Class of Stock [Line Items]          
Stated interest rate (as a percent) 11.00% 11.00%     11.00%
Repayments of debt $ 7,000,000 $ 10,000      
Consol Coal Resources LP Units          
Class of Stock [Line Items]          
Stock and debt repurchase additional amount authorized     $ 25,000,000    
Stock repurchased (in shares) 0 0