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SHORT-TERM INVESTMENTS - Contracted Maturities of Short-Term Investments (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Mar. 31, 2022
Debt Securities, Available-for-sale, Maturity, Amortized Cost, Rolling Maturity [Abstract]    
Amortized cost, Due in 1 year or less $ 389.4  
Amortized cost, Due in 1-2 years 76.1  
Cost or Amortized Cost 465.5 $ 825.9
Debt Securities, Available-for-sale, Maturity, Fair Value, Rolling Maturity [Abstract]    
Fair value, Due in 1 year or less 385.4  
Fair value, Due in 1-2 years 73.8  
Total fair value $ 459.2 $ 820.1