v3.26.1
RESTRUCTURING, IMPAIRMENT AND OTHER CHARGES - Narrative (Details)
$ in Thousands
12 Months Ended 24 Months Ended
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Mar. 31, 2024
USD ($)
Mar. 31, 2023
USD ($)
leasedOfficeSpace
Mar. 31, 2024
USD ($)
Restructuring Cost and Reserve [Line Items]          
Employee-related restructuring plan charges $ 4,794 $ 7,940 $ 4,227    
Number of leased office space exited | leasedOfficeSpace       8  
ROU asset group impairments and adjustments 0 85 1,946   $ 26,500
Operating lease, ROU asset, impairment loss       $ 22,200  
Leasehold improvements, impairment loss       $ 4,300  
United States          
Restructuring Cost and Reserve [Line Items]          
Number of leased office space exited | leasedOfficeSpace       5  
Boston          
Restructuring Cost and Reserve [Line Items]          
Number of leased office space exited | leasedOfficeSpace       1  
Philadelphia          
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  
San Francisco          
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  
The 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, France          
Restructuring Cost and Reserve [Line Items]          
Number of leased office space exited | leasedOfficeSpace       1  
Employee-related reserves          
Restructuring Cost and Reserve [Line Items]          
Employee-related restructuring plan charges 4,800 7,900 4,200    
Employee-related reserves | Restructuring Activity 2025          
Restructuring Cost and Reserve [Line Items]          
Restructuring reserve 100        
Employee-related reserves | Restructuring Activity 2026          
Restructuring Cost and Reserve [Line Items]          
Restructuring reserve 4,200        
Employee-related reserves | United States and Europe          
Restructuring Cost and Reserve [Line Items]          
Employee-related restructuring plan charges 0        
Restructuring reserve related charges 4,600        
Employee-related reserves | United States and Europe | Restructuring Activity 2025          
Restructuring Cost and Reserve [Line Items]          
Employee-related restructuring plan charges 100        
Employee-related reserves | United States and Europe | Restructuring Activity 2021          
Restructuring Cost and Reserve [Line Items]          
Employee-related restructuring plan charges     200    
Employee-related reserves | United States and Europe | Restructuring Activity 2023          
Restructuring Cost and Reserve [Line Items]          
Employee-related restructuring plan charges     200    
Employee-related reserves | United States, Europe and Asia Pacific          
Restructuring Cost and Reserve [Line Items]          
Restructuring reserve related charges   7,700 $ 4,000    
Employee-related reserves | United States | Restructuring Activity 2024          
Restructuring Cost and Reserve [Line Items]          
Employee-related restructuring plan charges   200      
Employee-related reserves | United States | Restructuring Activity 2021          
Restructuring Cost and Reserve [Line Items]          
Employee-related restructuring plan charges   $ 200      
Facility Closing          
Restructuring Cost and Reserve [Line Items]          
Employee-related restructuring plan charges       $ 2,000  
Restructuring reserve 600        
Facility Closing | Restructuring Activity 2017          
Restructuring Cost and Reserve [Line Items]          
Employee-related restructuring plan charges 8,200        
Restructuring reserve related charges 800        
Facility Closing | San Francisco and Phoenix          
Restructuring Cost and Reserve [Line Items]          
Restructuring reserve related charges $ (600)