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Convertible Senior Notes - Additional Information (Details)
1 Months Ended 6 Months Ended
Sep. 30, 2020
USD ($)
Sep. 24, 2020
USD ($)
d
$ / shares
Sep. 30, 2021
USD ($)
d
$ / shares
shares
Jan. 31, 2023
USD ($)
Jan. 31, 2022
USD ($)
Jul. 31, 2022
USD ($)
Sep. 22, 2021
USD ($)
Jan. 31, 2018
USD ($)
$ / shares
Debt Instrument [Line Items]                
Payments for unwinding of warrants       $ 0 $ (18,390,000)      
Proceeds from unwinding of convertible note hedges       0 39,880,000      
Loss on debt extinguishment       0 (64,910,000)      
Proceeds from the issuance of convertible notes, net of issuance costs       0 $ 89,128,000      
2023 Convertible Senior Notes                
Debt Instrument [Line Items]                
Loss on debt extinguishment     $ 64,900,000          
Number of securities called by warrants or rights (in shares) | shares     11,800,000          
Payments for convertible note hedges     $ 143,200,000          
Exercise price of warrants (in dollars per share) | $ / shares               $ 73.46
Proceeds from issuance of warrants     $ 88,000,000.0          
2027 Convertible Senior Notes                
Debt Instrument [Line Items]                
Interest rate, stated percentage     0.25%          
Principal amount     $ 1,000,000          
Convertible Debt | 2023 Convertible Senior Notes                
Debt Instrument [Line Items]                
Interest rate, stated percentage               0.00%
Face amount               $ 575,000,000.0
Principal amount       145,704,000   $ 145,704,000    
Debt outstanding             $ 145,700,000  
Repayments of debt       $ 145,700,000        
Convertible debt     416,500,000          
Repurchase amount     12,800,000          
Proceeds from unwind transactions     21,500,000          
Payments for unwinding of warrants     (18,400,000)          
Proceeds from unwinding of convertible note hedges     $ 39,900,000          
Conversion price (in dollars per share) | $ / shares               $ 48.85
Convertible Debt | 2026 Convertible Senior Notes                
Debt Instrument [Line Items]                
Interest rate, stated percentage   2.50%   2.50%        
Face amount $ 750,000,000.0              
Principal amount       $ 750,000,000   750,000,000    
Conversion ratio   0.036036            
Conversion price (in dollars per share) | $ / shares   $ 27.75 $ 27.75          
Threshold trading days | d   20            
Threshold consecutive trading days | d   30            
Threshold percentage of stock price trigger   150.00%            
Redemption price, percentage   100.00%            
Debt instrument, term       3 years 7 months 6 days        
Proceeds from the issuance of convertible notes, net of issuance costs 723,700,000              
Payments of debt issuance costs $ 26,300,000              
Debt instrument, principal amount for conversion into common stock   $ 1,000,000 $ 1,000,000          
Derivative liability   $ 230,900,000 698,200,000          
Debt Instrument convertible conversion price 1     1,000,000          
Convertible Debt | 2026 Convertible Senior Notes | Common Class A [Member]                
Debt Instrument [Line Items]                
Debt Instrument convertible conversion excess value     $ 1,000,000          
Convertible Debt | 2027 Convertible Senior Notes                
Debt Instrument [Line Items]                
Interest rate, stated percentage     0.25% 0.25%        
Face amount     $ 575,000,000          
Principal amount       $ 575,000,000   $ 575,000,000    
Convertible debt     477,300,000          
Debt instrument for cash, net     88,400,000          
Notes for cash     97,700,000          
Repurchase amount     $ 14,700,000          
Conversion ratio     17.3192          
Conversion price (in dollars per share) | $ / shares     $ 57.74          
Threshold trading days | d     20          
Threshold consecutive trading days | d     30          
Redemption price, percentage     100.00%          
Debt instrument, term       4 years 8 months 12 days        
Debt instrument, principal amount for conversion into common stock     $ 1,000,000          
Convertible Debt | 2027 Convertible Senior Notes | Minimum                
Debt Instrument [Line Items]                
Threshold percentage of stock price trigger     130.00%          
Convertible Debt | 2027 Convertible Senior Notes | Common Class A [Member]                
Debt Instrument [Line Items]                
Repurchase amount     $ 58,500,000          
Number of share repurchase | shares     1,400,000          
Convertible Debt | 2027 Convertible Senior Notes | Common Class A [Member] | Maximum                
Debt Instrument [Line Items]                
Threshold percentage of stock price trigger     98.00%          
Convertible Debt | Exchange Transactions | 2023 Convertible Senior Notes                
Debt Instrument [Line Items]                
Face amount             416,500,000  
Convertible Debt | Exchange Transactions | 2027 Convertible Senior Notes                
Debt Instrument [Line Items]                
Face amount             477,300,000  
Convertible Debt | Cash Transaction                
Debt Instrument [Line Items]                
Repayments of debt       $ 145,700,000        
Convertible Debt | Cash Transaction | 2023 Convertible Senior Notes                
Debt Instrument [Line Items]                
Repurchase amount             $ 12,800,000