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STOCK-BASED COMPENSATION - Employee Stock Purchase Plan (Details) - USD ($)
$ / shares in Units, shares in Thousands
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Stock-based compensation    
ESPP shares purchase period 6 months  
2017 Global Employee Stock Purchase Plan | Employee Stock Purchase Plan    
Stock-based compensation    
Risk-free interest rate 0.00%  
Expected service period (years) 6 months 6 months
Dividends $ 0 $ 0
Shares reserved for future issuance (in shares) 9,000  
Shares available for issuance (in shares) 8,535  
Employee payroll deduction, minimum 1.00%  
Employee payroll deduction, maximum 10.00%  
ESPP shares purchased by employees (in shares) 143 139
ESPP shares purchased by employees $ 19,657,000 $ 14,214,000
Weighted-average fair value of shares purchased by employees (in dollars per share) $ 137.84 $ 101.81
Minimum | 2017 Global Employee Stock Purchase Plan | Employee Stock Purchase Plan    
Stock-based compensation    
Risk-free interest rate   0.00%
Expected stock price volatility 27.70% 27.70%
Maximum | 2017 Global Employee Stock Purchase Plan | Employee Stock Purchase Plan    
Stock-based compensation    
Risk-free interest rate   0.10%
Expected stock price volatility 33.20% 33.20%