TAXES, Rollforward of deferred tax valuation allowance (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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| TAXES [Abstract] | ||||
| Balance - beginning of fiscal year | $ (124,700) | $ (128,214) | $ (71,987) | $ (74,727) | 
| Additional allowances | (19,434) | (5,381) | (59,493) | (20,259) | 
| Reversals and other changes | 25,573 | 8,895 | 3,266 | 22,999 | 
| Balance - end of fiscal year | $ (118,561) | $ (124,700) | $ (128,214) | $ (71,987) | 
| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
- References No definition available. 
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
- Definition Amount of decrease in the valuation allowance for a specified deferred tax asset from reversals. No definition available. 
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