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Debt - First Lien, Second Lien, and Exit Financing Facility (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 08, 2017
Mar. 30, 2016
Oct. 09, 2014
Dec. 31, 2017
Sep. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]                
Basis spread on variable rate   4.00%            
Repayments of loans           $ 13,021,000    
Loss on debt extinguishment $ 11,800,000     $ 15,000,000   14,968,609 $ 0 $ 0
Accumulated payment in kind interest 77,400,000              
Revolving Credit Facility | Restructuring Support Agreement and Plan of Reorganization                
Debt Instrument [Line Items]                
Revolving credit facility     $ 50,000,000          
Long-term line of credit               40,000,000
Commitment fee percentage     40.00%          
Line of Credit | Restructuring Support Agreement and Plan of Reorganization                
Debt Instrument [Line Items]                
Revolving credit facility     $ 275,000,000          
Line of Credit | LIBOR | Restructuring Support Agreement and Plan of Reorganization | Minimum                
Debt Instrument [Line Items]                
Basis spread on variable rate     3.50%          
Line of Credit | LIBOR | Restructuring Support Agreement and Plan of Reorganization | Maximum                
Debt Instrument [Line Items]                
Basis spread on variable rate     4.00%          
First Lien Facility                
Debt Instrument [Line Items]                
Repayments of lines of credit           184,099,000 21,276,000 19,625,000
First Lien Facility | First Lien Lenders                
Debt Instrument [Line Items]                
Long-term debt   $ 201,468,750            
Repayments of loans 171,078,000           5,651,000  
Loss on debt extinguishment 3,200,000              
First Lien Facility | First Lien Lenders | Revolving Credit Facility                
Debt Instrument [Line Items]                
Revolving credit facility   50,000,000            
Repayments of lines of credit $ 20,000,000       $ 5,000,000      
Second Lien Facility                
Debt Instrument [Line Items]                
Repayments of lines of credit           $ 77,426,244 $ 0 $ 0
Second Lien Facility | Second Lien Lenders                
Debt Instrument [Line Items]                
Long-term debt   $ 60,000,000            
Second Lien Facility | Second Lien Lenders | LIBOR                
Debt Instrument [Line Items]                
Basis spread on variable rate   14.00%            
LIBOR rate floor   1.00%