FRESH-START ACCOUNTING, Fresh-Start Accounting Adjustments (Details) $ in Millions  | 
 Oct. 31, 2019  
USD ($)  
Customer 
 | 
|---|---|
| Fresh Start Adjustments [Abstract] | |
| Fair value adjustment of short-term portion of contract acquisition and pre-operating costs | $ (8.8) | 
| Fair value of short-term portion of contract acquisition and pre-operating costs | $ 0.0 | 
| Number of customer contracts | Customer | 2 | 
| Write-off of short-term portion of contraction acquisition and pre-operating costs | $ (2.2) | 
| Write-off of miscellaneous costs | (0.2) | 
| Write-off of unamortized debt issuance costs | $ (15.2) | 
| Minimum | |
| Fresh Start Adjustments [Abstract] | |
| Yield volatility | 30.00% | 
| Call schedule | 100.25% | 
| Maximum | |
| Fresh Start Adjustments [Abstract] | |
| Yield volatility | 35.00% | 
| Call schedule | 103.50% | 
| X | ||||||||||
- Definition Call schedule percentage used to calculate the fair value of debt instruments. No definition available. 
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| X | ||||||||||
- Definition Amount of fresh-start adjustment related to fair value adjustment of short-term portion of contract acquisition and pre-operating costs. No definition available. 
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| X | ||||||||||
- Definition Amount of fresh-start adjustment related to write-off of miscellaneous costs. No definition available. 
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| X | ||||||||||
- Definition Amount of fresh-start adjustment related to write-off of short-term portion of contraction acquisition and pre-operating costs. No definition available. 
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| X | ||||||||||
- Definition Amount of fresh-start adjustment related to write-off of unamortized debt issuance costs. No definition available. 
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| X | ||||||||||
- Definition Yield volatility percentage used to calculate the fair value of debt instruments. No definition available. 
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- References No definition available. 
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| X | ||||||||||
- Definition Number of customer contracts. No definition available. 
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| X | ||||||||||
- Definition Fair value portion of short-term portion of contract acquisition and pre-operating costs. No definition available. 
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| X | ||||||||||
- Details 
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- Details 
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