EMPLOYEE BENEFIT PLANS, Schedule of Separation Agreements (Details) - USD ($) $ in Thousands  | 
5 Months Ended | 7 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
Mar. 31, 2020  | 
Oct. 31, 2019  | 
Mar. 31, 2019  | 
Mar. 31, 2018  | 
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| Voluntary Separation Program | ||||
| Employee Benefit Plans [Abstract] | ||||
| Severance costs | $ 0 | $ 0 | $ 0 | $ 1,122 | 
| Voluntary Separation Program | Direct cost | ||||
| Employee Benefit Plans [Abstract] | ||||
| Severance costs | 0 | 0 | 0 | 105 | 
| Voluntary Separation Program | General and Administrative Expense | ||||
| Employee Benefit Plans [Abstract] | ||||
| Severance costs | 0 | 0 | 0 | 1,017 | 
| Involuntary Separation Program | ||||
| Employee Benefit Plans [Abstract] | ||||
| Severance costs | 227 | 4,539 | 9,235 | 21,214 | 
| Involuntary Separation Program | Direct cost | ||||
| Employee Benefit Plans [Abstract] | ||||
| Severance costs | 104 | 4,376 | 7,125 | 11,538 | 
| Involuntary Separation Program | General and Administrative Expense | ||||
| Employee Benefit Plans [Abstract] | ||||
| Severance costs | $ 123 | $ 163 | $ 2,110 | $ 9,676 | 
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- 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. 
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- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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