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BORROWINGS (Details 4) - Predecessor Company - USD ($)
May. 20, 2014
May. 15, 2014
Feb. 27, 2013
2015 Natural Resources Facility      
Details of Company's borrowings      
Credit facility term (in years) 5 years    
Current borrowing capacity under line of credit facility $ 75,000,000.0    
2018 Natural Resources Facility      
Details of Company's borrowings      
Credit facility term (in years)     5 years
Current borrowing capacity under line of credit facility   $ 68,500,000.0 $ 6,000,000.0
Minimum | 2015 Natural Resources Facility | LIBOR      
Details of Company's borrowings      
Percentage of margin added to reference rate to determine interest rate on debt (in percentage) 1.75%    
Minimum | 2018 Natural Resources Facility | LIBOR      
Details of Company's borrowings      
Percentage of margin added to reference rate to determine interest rate on debt (in percentage)   1.75%  
Maximum | 2015 Natural Resources Facility | LIBOR      
Details of Company's borrowings      
Percentage of margin added to reference rate to determine interest rate on debt (in percentage) 2.75%    
Maximum | 2018 Natural Resources Facility | LIBOR      
Details of Company's borrowings      
Percentage of margin added to reference rate to determine interest rate on debt (in percentage)   3.25%