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RESTRUCTURING, IMPAIRMENT AND OTHER CHARGES - Narrative (Details)
$ in Thousands
12 Months Ended
Mar. 31, 2023
USD ($)
leasedOfficeSpace
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Restructuring Cost and Reserve [Line Items]      
Restructuring charges and adjustments $ 7,792 $ (19) $ 1,725
Number of leased office space exited | leasedOfficeSpace 8    
ROU asset group impairments $ 24,599 $ 0 0
Operating lease, ROU asset, impairment loss 20,500    
Leasehold improvements 4,100    
Employee Severance | Restructuring Activity 2020      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges and adjustments     1,700
Facility Closing      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges and adjustments 2,900    
Restructuring reserve 2,700    
Facility Closing | Restructuring Activity 2017      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges and adjustments 7,300    
Restructuring reserve $ 2,100    
United States      
Restructuring Cost and Reserve [Line Items]      
Number of leased office space exited | leasedOfficeSpace 5    
United States | Employee Severance      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges and adjustments $ 7,800    
Restructuring reserve related charges     $ 1,700
Restructuring reserve $ 800    
MASSACHUSETTS      
Restructuring Cost and Reserve [Line Items]      
Number of leased office space exited | leasedOfficeSpace 1    
PENNSYLVANIA      
Restructuring Cost and Reserve [Line Items]      
Number of leased office space exited | leasedOfficeSpace 1    
Phoenix      
Restructuring Cost and Reserve [Line Items]      
Number of leased office space exited | leasedOfficeSpace 1    
CALIFORNIA      
Restructuring Cost and Reserve [Line Items]      
Number of leased office space exited | leasedOfficeSpace 2    
Europe      
Restructuring Cost and Reserve [Line Items]      
Number of leased office space exited | leasedOfficeSpace 3    
NETHERLANDS      
Restructuring Cost and Reserve [Line Items]      
Number of leased office space exited | leasedOfficeSpace 1    
London, England      
Restructuring Cost and Reserve [Line Items]      
Number of leased office space exited | leasedOfficeSpace 1    
Paris And France      
Restructuring Cost and Reserve [Line Items]      
Number of leased office space exited | leasedOfficeSpace 1