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LONG-TERM DEBT - Narrative (Detail) - USD ($) | Jun. 14, 2018 | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Weighted average interest rate |  | 9.10% | 8.90%
Aggregate market value of debt |  |  | $ 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% |  |

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- Definition Debt Instrument, Debt Covenant, Reduction Of Borrowing Base and Commitments To Arrive At Exposure + References No definition available. + Details
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611 + Details
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