Quarterly report pursuant to Section 13 or 15(d)

RESTRUCTURING CHARGES - Summary of Restructuring Expense (Details)

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RESTRUCTURING CHARGES - Summary of Restructuring Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Restructuring Reserve [Roll Forward]        
Beginning balance     $ 2,876 $ 5,819
Restructuring charges $ (64) $ 1,227 1,020 5,428
Cash payments     (3,659) (7,300)
Other non-cash     63  
Ending balance 300 3,947 300 3,947
Severance and Benefits        
Restructuring Reserve [Roll Forward]        
Beginning balance     0 1,430
Cash payments     0 (5,631)
Other non-cash     0  
Ending balance 0 401 0 401
Facilities        
Restructuring Reserve [Roll Forward]        
Beginning balance     2,876 4,389
Cash payments     (3,659) (1,669)
Other non-cash     63  
Ending balance $ 300 $ 3,546 300 3,546
Restructuring Costs        
Restructuring Reserve [Roll Forward]        
Restructuring charges     0 4,657
Restructuring Costs | Severance and Benefits        
Restructuring Reserve [Roll Forward]        
Restructuring charges     0 4,602
Restructuring Costs | Facilities        
Restructuring Reserve [Roll Forward]        
Restructuring charges     0 55
Adjustments to Prior Estimates        
Restructuring Reserve [Roll Forward]        
Restructuring charges     1,020 771
Adjustments to Prior Estimates | Severance and Benefits        
Restructuring Reserve [Roll Forward]        
Restructuring charges     0 0
Adjustments to Prior Estimates | Facilities        
Restructuring Reserve [Roll Forward]        
Restructuring charges     $ 1,020 $ 771