Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments - Nonrecurring Basis Measurements (Details)

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Fair Value of Financial Instruments - Nonrecurring Basis Measurements (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Nov. 30, 2022
Nov. 30, 2021
Nov. 30, 2022
Nov. 30, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity method investments, total losses     $ 1,060.3 $ 0.0
Long-lived assets, total losses $ 0.0 $ 0.0 0.0 665.9
Nonrecurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity method investments, total losses     1,060.3  
Long-lived assets, total losses       665.9
Nonrecurring | Quoted Prices in Active Markets (Level 1)        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity method investments 621.4   621.4  
Long-lived assets (1)   0.0   0.0
Nonrecurring | Significant Other Observable Inputs (Level 2)        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity method investments 0.0   0.0  
Long-lived assets (1)   0.0   0.0
Nonrecurring | Significant Unobservable Inputs (Level 3)        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity method investments $ 0.0   $ 0.0  
Long-lived assets (1)   $ 20.0   $ 20.0