FRESH-START ACCOUNTING, Reorganization Items (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  | 
|
| Reorganization Items [Abstract] | ||||
| Gain on settlement of liabilities subject to compromise | $ 0 | |||
| Fresh-start accounting adjustments | 0 | |||
| Reorganization professional fees and other | (7,232) | |||
| Gain on settlement of liabilities subject to compromise | $ 265,591 | |||
| Fresh-start accounting adjustments | (686,116) | |||
| Reorganization professional fees and other | (197,448) | |||
| Loss on reorganization Items | (7,232) | (617,973) | $ 0 | $ 0 | 
| Cash paid for reorganization items | $ 21,300 | |||
| Cash paid for reorganization items | $ 66,000 | |||
| X | ||||||||||
- Definition Amount of reorganization items related to legal and advisory professional fees related to entities in bankruptcy. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
- Definition Amount of reorganization items related to legal and advisory professional fees related to entities not in bankruptcy. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
- Definition Total amount of reorganization items. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
- References No definition available. 
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| X | ||||||||||
- Definition Amount of reorganization items related to fresh-start accounting adjustments related to entities in bankruptcy. No definition available. 
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| X | ||||||||||
- Definition Amount of reorganization items related to the gain (loss) on settlement of liabilities subject to compromise related to entities in bankruptcy. No definition available. 
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| X | ||||||||||
- Definition The cash outflow for payments for reorganization items related to entities in bankruptcy. No definition available. 
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| X | ||||||||||
- Definition Amount of reorganization items related to fresh-start accounting adjustments related to entities not in bankruptcy. No definition available. 
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| X | ||||||||||
- Definition Amount of reorganization items related to the gain (loss) on settlement of liabilities subject to compromise related to entities not in bankruptcy. No definition available. 
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| X | ||||||||||
- Definition The cash outflow for payments for reorganization items related to entities not in bankruptcy. No definition available. 
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