OPERATIONS, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Prepaid Expenses and Other Current Assets (Details) $ in Millions  | 
5 Months Ended | 7 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
| 
 Mar. 31, 2020  
USD ($) 
 | 
 Oct. 31, 2019  
USD ($) 
 | 
 Mar. 31, 2019  
USD ($)  
Contract 
 | 
 Mar. 31, 2018  
USD ($) 
 | 
|
| Operations, Basis of Presentation and Summary of Significant Accounting Policies [Abstract] | ||||
| Pre-operating costs | $ 9.8 | |||
| Amortization of other deferred charges | $ 6.9 | $ 10.1 | $ 11.4 | |
| Short-term portion of contract acquisition and pre-operating costs adjusted | $ 8.8 | |||
| Norway | ||||
| Operations, Basis of Presentation and Summary of Significant Accounting Policies [Abstract] | ||||
| Number of client contracts | Contract | 2 | |||
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
  | 
| X | ||||||||||
- Definition Amount of amortization of other deferred costs recognized in the income statement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
  | 
| X | ||||||||||
- Definition Number of client contracts where the contract acquisition and pre-operating costs are being capitalized on the balance sheet in other assets and will be expenses over the life of the contracts. No definition available. 
  | 
| X | ||||||||||
- Definition Deferred pre-operating costs that are recoverable under the related contracts and amortized over the term of the contracts. No definition available. 
  | 
| X | ||||||||||
- Definition Amount of short-term portion of contract acquisition and pre-operating costs in connection with the emergence from bankruptcy. No definition available. 
  | 
| X | ||||||||||
- Details 
  |