Annual report pursuant to Section 13 and 15(d)

STOCKHOLDERS' INVESTMENT, EARNINGS PER SHARE AND ACCUMULATED OTHER COMPREHENSIVE INCOME - Accumulated Other Comprehensive Loss (Details)

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STOCKHOLDERS' INVESTMENT, EARNINGS PER SHARE AND ACCUMULATED OTHER COMPREHENSIVE INCOME - Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
 5 Months Ended 7 Months Ended 12 Months Ended
Mar. 31, 2020
Oct. 31, 2019
Mar. 31, 2021
Mar. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Beginning balance $ 473 $ 812,367 $ 426,216 $ 1,183,501
Other comprehensive income (loss) before reclassification   21,176 45,126  
Reclassified from accumulated other comprehensive income   1,146 (43,400)  
Net current period other comprehensive income (loss) (8,641) 22,322 1,726 (41,895)
Foreign exchange rate impact (16,428) 22,952 49,814 (36,382)
Ending balance 426,216 473 897,071 812,367
Currency Translation Adjustments        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Beginning balance 0 (137,867) (16,440)  
Other comprehensive income (loss) before reclassification   23,004 49,803  
Reclassified from accumulated other comprehensive income   0 0  
Net current period other comprehensive income (loss) (16,440) 23,004 49,803  
Foreign exchange rate impact   (1,551) (717)  
Ending balance (16,440) 0 32,646 (137,867)
Currency Translation Adjustments | Reorganization Chapter 11 Predecessor Before Adjustment        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Beginning balance (116,414)      
Ending balance   (116,414)    
Currency Translation Adjustments | Reorganization Chapter 11 Fresh Start Adjustment        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Beginning balance 116,414      
Ending balance   116,414    
Pension Liability Adjustments        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Beginning balance 0 (189,734) 6,389  
Other comprehensive income (loss) before reclassification   0 0  
Reclassified from accumulated other comprehensive income   0 (45,071)  
Net current period other comprehensive income (loss) 6,389 0 (45,071)  
Foreign exchange rate impact   1,551 717  
Ending balance 6,389 0 (37,965) (189,734)
Pension Liability Adjustments | Reorganization Chapter 11 Predecessor Before Adjustment        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Beginning balance (188,183)      
Ending balance   (188,183)    
Pension Liability Adjustments | Reorganization Chapter 11 Fresh Start Adjustment        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Beginning balance 188,183      
Ending balance   188,183    
Unrealized gain (loss) on cash flow hedges        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Beginning balance 0 (388) 1,410  
Other comprehensive income (loss) before reclassification   (1,828) (4,677)  
Reclassified from accumulated other comprehensive income   1,146 1,671  
Net current period other comprehensive income (loss) 1,410 (682) (3,006)  
Ending balance 1,410 0 (1,596) (388)
Unrealized gain (loss) on cash flow hedges | Reorganization Chapter 11 Predecessor Before Adjustment        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Beginning balance (1,070)      
Ending balance   (1,070)    
Unrealized gain (loss) on cash flow hedges | Reorganization Chapter 11 Fresh Start Adjustment        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Beginning balance 1,070      
Ending balance   1,070    
Total        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Beginning balance 0 (327,989) (8,641) (286,094)
Net current period other comprehensive income (loss) (8,641) 22,322 1,726 (41,895)
Ending balance (8,641) 0 $ (6,915) $ (327,989)
Total | Reorganization Chapter 11 Predecessor Before Adjustment        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Beginning balance (305,667)      
Ending balance   (305,667)    
Total | Reorganization Chapter 11 Fresh Start Adjustment        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Beginning balance $ 305,667      
Ending balance   $ 305,667