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LONG-TERM DEBT - Narrative (Detail) - USD ($)
Jun. 14, 2018
Jun. 30, 2018
Dec. 31, 2017
Debt Instrument [Line Items]      
Weighted average interest rate   9.00% 8.90%
Aggregate market value of debt   $ 15,600,000,000 $ 15,400,000,000
Subsidiary | Line of Credit | DIP Facility      
Debt Instrument [Line Items]      
DIP Facility, aggregate principal amount $ 450,000,000.0    
Revolving credit commitment | Subsidiary | Line of Credit | DIP Facility      
Debt Instrument [Line Items]      
DIP Facility, aggregate principal amount $ 450,000,000    
Borrowing base as a percentage of eligible accounts receivable 90.00%    
Minimum incremental increase in facility $ 10,000,000    
Maximum aggregate increase in facility $ 100,000,000    
Commitment fee percentage 0.50%    
Letter of credit fee percentage 2.25%    
Amount of reduction of borrowing base and commitments to arrive at exposure $ 37,500,000.0    
Minimum excess availability amount $ 0    
Revolving credit commitment | Subsidiary | Line of Credit | DIP Facility | Federal funds rate      
Debt Instrument [Line Items]      
Basis spread on variable rate 0.50%    
Revolving credit commitment | Subsidiary | Line of Credit | DIP Facility | One-month Eurodollar      
Debt Instrument [Line Items]      
Basis spread on variable rate 1.00%    
Revolving credit commitment | Subsidiary | Line of Credit | DIP Facility | Eurocurrency rate      
Debt Instrument [Line Items]      
Basis spread on variable rate 1.00%    
Borrowing rate under DIP Credit Agreement 2.25%    
Revolving credit commitment | Subsidiary | Line of Credit | DIP Facility | Base rate      
Debt Instrument [Line Items]      
Borrowing rate under DIP Credit Agreement 1.25%