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Debt - Narrative (Details)
 1 Months Ended 2 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
May 02, 2023
$ / shares
Jun. 30, 2023
USD ($)
May 31, 2023
USD ($)
$ / shares
May 31, 2020
USD ($)
$ / shares
Nov. 30, 2018
USD ($)
purchaser
d
$ / shares
shares
Aug. 31, 2023
USD ($)
Sep. 30, 2023
USD ($)
shares
Sep. 30, 2023
USD ($)
d
shares
Sep. 30, 2022
USD ($)
shares
Dec. 31, 2022
USD ($)
shares
Debt Instrument [Line Items]                    
Proceeds from Convertible Debt               $ 1,230,600,000 $ 0  
Number of Initial purchasers | purchaser         2          
Purchases of capped call transactions               101,300,000 $ 0  
Deposit assets             $ 5,300,000 $ 5,300,000    
Common Stock                    
Debt Instrument [Line Items]                    
Repurchase and conversions of notes (in shares) | shares             10,600,000 10,600,000 400,000  
Shares received from Note Hedge | shares             10,500,000 10,500,000 300,000  
Senior Notes                    
Debt Instrument [Line Items]                    
Total principal amount             $ 2,581,800,000 $ 2,581,800,000   $ 1,982,300,000
Line of credit                    
Debt Instrument [Line Items]                    
Term of debt instrument   5 years                
Maximum borrowing capacity of revolving credit agreement   $ 200,000,000         $ 200,000,000.0 $ 200,000,000.0    
Option to increase revolving line of credit   $ 500,000,000                
Line of credit | Federal Reserve Bank Of New York Rate (NYFRB)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (as a percent)               0.50%    
Line of credit | Secured Overnight Financing Rate (SOFR)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (as a percent)               1.00%    
Line of credit | Minimum                    
Debt Instrument [Line Items]                    
Interest rate on convertible notes (as percent)             0.375% 0.375%    
Unused capacity fee (as a percent)               0.175%    
Line of credit | Minimum | Secured Overnight Financing Rate (SOFR)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (as a percent)               1.375%    
Line of credit | Minimum | Simple Risk Free Rate (RFR)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (as a percent)               0.0326%    
Line of credit | Maximum                    
Debt Instrument [Line Items]                    
Interest rate on convertible notes (as percent)             1.00% 1.00%    
Unused capacity fee (as a percent)               0.25%    
Line of credit | Maximum | Secured Overnight Financing Rate (SOFR)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (as a percent)               2.00%    
Line of credit | Maximum | Simple Risk Free Rate (RFR)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (as a percent)               0.10%    
Senior Convertible Notes due 2023 | Senior Notes                    
Debt Instrument [Line Items]                    
Interest rate on convertible notes (as percent)         0.75%          
Total principal amount         $ 850,000,000   $ 124,300,000 $ 124,300,000   774,800,000
Proceeds from Convertible Debt         $ 836,600,000          
Conversion price of convertible notes (in USD per share) | $ / shares         $ 41.07          
Debt instrument, convertible principal amount settled             650,500,000 650,500,000    
Debt instrument, convertible principal amount settled through cash             $ 650,500,000 $ 650,500,000    
Debt instrument convertible principal amount exercised                   $ 17,500,000
Shares received from Note Hedge | shares             10,585,850 10,585,850   287,492
Debt instrument, convertible, principal amount settled           $ 124,300,000        
Holder's repurchase price percentage in event of fundamental change (as percent)             100.00% 100.00%    
Number of trading days | d         60          
Proportion of conversion price (as percent)               130.00%    
Redemption price (as percent)               100.00%    
Stock counterparties to acquire with warrants purchased (in shares) | shares         20,700,000          
Proceeds from sale of warrants         $ 183,800,000          
Exercise price of warrants or rights (in USD per share) | $ / shares         $ 49.60          
Conversion ratio         0.0243476          
Senior Convertible Notes due 2023 | Senior Notes | Designated as hedging instrument                    
Debt Instrument [Line Items]                    
Stock issued upon conversion of senior notes (in shares) | shares         20,700,000          
Equity component of 2025 Notes issuance, net of issuance costs         $ 218,900,000          
Senior Convertible Notes due 2023 | Senior Notes | Term one | Minimum                    
Debt Instrument [Line Items]                    
Number of trading days | d               20    
Proportion of applicable conversion price (as percent)               130.00%    
Senior Convertible Notes due 2023 | Senior Notes | Term one | Maximum                    
Debt Instrument [Line Items]                    
Number of trading days | d               30    
Senior Convertible Notes due 2023 | Senior Notes | Term two                    
Debt Instrument [Line Items]                    
Number of trading days | d               5    
Senior Convertible Notes due 2023 | Senior Notes | Term two | Maximum                    
Debt Instrument [Line Items]                    
Number of trading days | d               5    
Proportion of applicable conversion price (as percent)               98.00%    
Senior Convertible Notes due 2023 | Senior Notes | Common Stock                    
Debt Instrument [Line Items]                    
Repurchase and conversions of notes (in shares) | shares             10,599,907 10,599,907   425,552
Senior Convertible Notes due 2025 | Senior Notes                    
Debt Instrument [Line Items]                    
Interest rate on convertible notes (as percent)       0.25%            
Total principal amount       $ 1,210,000,000     $ 1,207,500,000 $ 1,207,500,000   $ 1,207,500,000
Proceeds from Convertible Debt       $ 1,190,000,000            
Conversion price of convertible notes (in USD per share) | $ / shares       $ 150.11            
Proportion of conversion price (as percent)               130.00%    
Conversion ratio       0.006662            
Senior Convertible Notes due 2025 | Senior Notes | Term one | Minimum                    
Debt Instrument [Line Items]                    
Number of trading days | d               20    
Proportion of applicable conversion price (as percent)               130.00%    
Senior Convertible Notes due 2025 | Senior Notes | Term one | Maximum                    
Debt Instrument [Line Items]                    
Number of trading days | d               30    
Senior Convertible Notes due 2025 | Senior Notes | Term two                    
Debt Instrument [Line Items]                    
Number of trading days | d               5    
Senior Convertible Notes due 2025 | Senior Notes | Term two | Maximum                    
Debt Instrument [Line Items]                    
Number of trading days | d               5    
Proportion of applicable conversion price (as percent)               98.00%    
Senior Convertible Notes due 2028 | Senior Notes                    
Debt Instrument [Line Items]                    
Interest rate on convertible notes (as percent)     0.375%              
Total principal amount     $ 1,250,000,000       $ 1,250,000,000 $ 1,250,000,000   $ 0
Proceeds from Convertible Debt     $ 1,230,000,000              
Conversion price of convertible notes (in USD per share) | $ / shares     $ 162.41              
Holder's repurchase price percentage in event of fundamental change (as percent)     100.00%              
Proportion of conversion price (as percent)               130.00%    
Redemption price (as percent)               100.00%    
Conversion ratio     0.0061571              
Capped call, cap price (in USD per share) | $ / shares $ 212.62                  
Sale of stock premium (as percent) 80.00%                  
Closing stock price (in USD per share) | $ / shares $ 118.12                  
Purchases of capped call transactions     $ 101,300,000              
Senior Convertible Notes due 2028 | Senior Notes | Term one | Minimum                    
Debt Instrument [Line Items]                    
Number of trading days | d               20    
Proportion of applicable conversion price (as percent)               130.00%    
Senior Convertible Notes due 2028 | Senior Notes | Term one | Maximum                    
Debt Instrument [Line Items]                    
Number of trading days | d               30    
Senior Convertible Notes due 2028 | Senior Notes | Term two                    
Debt Instrument [Line Items]                    
Number of trading days | d               5    
Senior Convertible Notes due 2028 | Senior Notes | Term two | Maximum                    
Debt Instrument [Line Items]                    
Number of trading days | d               5    
Proportion of applicable conversion price (as percent)               98.00%