v3.26.1
FAIR VALUE MEASUREMENTS - Schedule of Assets Measured at Fair Value (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Mar. 31, 2025
Assets:    
Short-term investments $ 443.8 $ 9.4
Foreign currency forward contracts 0.2  
Total financial assets 1,682.9 1,282.1
Liabilities:    
Short-term debt, net: 30.0 28.5
Total financial liabilities 30.0 28.6
Money market funds    
Assets:    
Cash and cash equivalents: 909.0 842.6
Restricted cash and cash equivalents: 11.9 12.0
Restricted cash and cash equivalents, long term: 79.4 88.2
Bank-time deposits    
Assets:    
Cash and cash equivalents: 204.5 296.4
Short-term investments 443.8 9.4
Restricted cash and cash equivalents: 1.2 1.9
Private equity    
Assets:    
Other assets: 23.6 24.3
Equity securities    
Assets:    
Other assets: 9.3 7.3
Foreign currency forward contracts    
Liabilities:    
Accrued expenses and other current liabilities:   0.1
Quoted prices in active markets for identical assets (level 1)    
Assets:    
Foreign currency forward contracts 0.0  
Total financial assets 1,659.1 1,257.8
Liabilities:    
Short-term debt, net: 0.0 0.0
Total financial liabilities 0.0 0.0
Quoted prices in active markets for identical assets (level 1) | Money market funds    
Assets:    
Cash and cash equivalents: 909.0 842.6
Restricted cash and cash equivalents: 11.9 12.0
Restricted cash and cash equivalents, long term: 79.4 88.2
Quoted prices in active markets for identical assets (level 1) | Bank-time deposits    
Assets:    
Cash and cash equivalents: 204.5 296.4
Short-term investments 443.8 9.4
Restricted cash and cash equivalents: 1.2 1.9
Quoted prices in active markets for identical assets (level 1) | Private equity    
Assets:    
Other assets: 0.0 0.0
Quoted prices in active markets for identical assets (level 1) | Equity securities    
Assets:    
Other assets: 9.3 7.3
Quoted prices in active markets for identical assets (level 1) | Foreign currency forward contracts    
Liabilities:    
Accrued expenses and other current liabilities:   0.0
Significant other observable inputs (level 2)    
Assets:    
Foreign currency forward contracts 0.2  
Total financial assets 0.2 0.0
Liabilities:    
Short-term debt, net: 30.0 28.5
Total financial liabilities 30.0 28.6
Significant other observable inputs (level 2) | Money market funds    
Assets:    
Cash and cash equivalents: 0.0 0.0
Restricted cash and cash equivalents: 0.0 0.0
Restricted cash and cash equivalents, long term: 0.0 0.0
Significant other observable inputs (level 2) | Bank-time deposits    
Assets:    
Cash and cash equivalents: 0.0 0.0
Short-term investments 0.0 0.0
Restricted cash and cash equivalents: 0.0 0.0
Significant other observable inputs (level 2) | Private equity    
Assets:    
Other assets: 0.0 0.0
Significant other observable inputs (level 2) | Equity securities    
Assets:    
Other assets: 0.0 0.0
Significant other observable inputs (level 2) | Foreign currency forward contracts    
Liabilities:    
Accrued expenses and other current liabilities:   0.1
Significant unobservable inputs (level 3)    
Assets:    
Foreign currency forward contracts 0.0  
Total financial assets 23.6 24.3
Liabilities:    
Short-term debt, net: 0.0 0.0
Total financial liabilities 0.0 0.0
Significant unobservable inputs (level 3) | Money market funds    
Assets:    
Cash and cash equivalents: 0.0 0.0
Restricted cash and cash equivalents: 0.0 0.0
Restricted cash and cash equivalents, long term: 0.0 0.0
Significant unobservable inputs (level 3) | Bank-time deposits    
Assets:    
Cash and cash equivalents: 0.0 0.0
Short-term investments 0.0 0.0
Restricted cash and cash equivalents: 0.0 0.0
Significant unobservable inputs (level 3) | Private equity    
Assets:    
Other assets: 23.6 24.3
Significant unobservable inputs (level 3) | Equity securities    
Assets:    
Other assets: $ 0.0 0.0
Significant unobservable inputs (level 3) | Foreign currency forward contracts    
Liabilities:    
Accrued expenses and other current liabilities:   $ 0.0