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Convertible Senior Notes - Narrative (Details)
$ / shares in Units, $ in Thousands
 1 Months Ended 12 Months Ended 36 Months Ended
Mar. 31, 2021
USD ($)
shares
Aug. 31, 2020
USD ($)
Apr. 30, 2019
USD ($)
Apr. 30, 2018
trading_day
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Mar. 31, 2020
USD ($)
Mar. 31, 2019
USD ($)
Debt Instrument [Line Items]                    
Repayments of convertible senior notes         $ 401,203 $ 300,762 $ 303,967      
(Gain)/loss on early extinguishments of debt         (93,519) 78,152 4,286      
Equity component of 2025/2026 convertible senior notes, net of issuance costs             237,462      
Proceeds from exercise of convertible senior notes capped call         0 69,005 77,095      
Senior Notes | Sale Price Is Greater Or Equal 130%                    
Debt Instrument [Line Items]                    
Threshold trading days | trading_day       20            
Threshold consecutive trading days | trading_day       30            
Threshold percentage of stock price trigger       130.00%            
Senior Notes | Trading Price Per $1,000 Principal Amount Less Than 98%                    
Debt Instrument [Line Items]                    
Threshold trading days | trading_day       5            
Threshold consecutive trading days | trading_day       10            
Senior Notes | Trading Price Per $1,000 Principal Amount Less Than 98% | Maximum                    
Debt Instrument [Line Items]                    
Threshold percentage of stock price trigger       98.00%            
Senior Notes | Fundamental Change Scenario                    
Debt Instrument [Line Items]                    
Threshold percentage of stock price trigger       100.00%            
2026 Notes | Senior Notes                    
Debt Instrument [Line Items]                    
Face value   $ 1,000,000     500,000 1,000,000   $ 500,000    
Interest rate, stated percentage   0.00%                
Principal amount   $ 1,000,000                
Repurchased face amount         500,000     $ 500,000    
Repayments of convertible senior notes         399,900          
Extinguishment incurred         1,300          
Total consideration         401,200          
Debt extinguished         494,700          
(Gain)/loss on early extinguishments of debt         $ (93,500)          
Conversion ratio   0.0092978                
Conversion price (in dollars per share) | $ / shares         $ 107.55     $ 107.55    
2026 Notes | Senior Notes | Capped Call                    
Debt Instrument [Line Items]                    
Debt instrument, convertible (in shares) | shares         9,297,800     9,297,800    
Conversion price (in dollars per share) | $ / shares         $ 156.44     $ 156.44    
0% Convertible Senior Notes Due 2026, Additional Notes | Senior Notes                    
Debt Instrument [Line Items]                    
Face value   $ 100,000                
2025 Notes | Senior Notes                    
Debt Instrument [Line Items]                    
Face value         $ 699,979 699,982   $ 699,979 $ 700,000 $ 700,000
Interest rate, stated percentage                 0.125% 0.125%
Option to purchase additional notes     $ 100,000              
Principal amount     $ 800,000              
Repurchased face amount           100,000        
Repayments of convertible senior notes $ 184,900                  
Debt extinguished 100,000                  
(Gain)/loss on early extinguishments of debt (78,200)                  
Carrying amount 98,300                  
Derivative liability 176,500                  
Gain (loss) in change in fair value $ 8,400                  
Conversion ratio     0.0193956              
Conversion price (in dollars per share) | $ / shares         $ 51.56     $ 51.56    
2025 Notes | Senior Notes | Capped Call                    
Debt Instrument [Line Items]                    
Debt instrument, convertible (in shares) | shares         13,576,513     13,576,513    
Debt instrument, convertible, shares terminated (in shares) | shares 1,939,560                  
Proceeds from exercise of convertible senior notes capped call $ 23,900                  
Derivative liability 22,600                  
Gain (loss) in change in fair value $ 1,300                  
Conversion price (in dollars per share) | $ / shares         $ 79.32     $ 79.32    
2023 Notes | Senior Notes                    
Debt Instrument [Line Items]                    
Repurchased face amount           $ 57,400 $ 57,400      
Repayments of convertible senior notes               $ 734,400    
2023 Notes | Senior Notes | Capped Call                    
Debt Instrument [Line Items]                    
Debt instrument, convertible, shares terminated (in shares) | shares           4,288,459 6,380,815      
Proceeds from exercise of convertible senior notes capped call           $ 45,200 $ 57,400      
2023 Notes | Senior Notes | Extinguishment Of Aggregate Principal Amount                    
Debt Instrument [Line Items]                    
Interest rate, stated percentage           0.25%        
Repurchased face amount           $ 115,600 57,400      
Repayments of convertible senior notes           115,600        
(Gain)/loss on early extinguishments of debt             1,000      
Aggregate consideration           351,100        
Debt conversion, shares issued, value           235,500        
Carrying amount           114,200 $ 51,600      
Equity component of 2025/2026 convertible senior notes, net of issuance costs           236,900        
Debt instrument, convertible, shares terminated (in shares) | shares             2,131,354      
Proceeds from exercise of convertible senior notes capped call             $ 19,700      
Aggregate consideration for principal amount exchanged             149,600      
Convertible senior notes             52,600      
Debt instrument, equity component             97,000      
2023 Notes | Senior Notes | Requests For Conversions                    
Debt Instrument [Line Items]                    
Repurchased face amount           24,700        
2023 Notes | Senior Notes | Election Of Option To Redeem Outstanding Notes                    
Debt Instrument [Line Items]                    
Repurchased face amount           $ 90,900        
2023 Notes | Senior Notes | Exchange Of Aggregate Principal Amount                    
Debt Instrument [Line Items]                    
Repurchased face amount             172,000      
Repayments of convertible senior notes             174,600      
(Gain)/loss on early extinguishments of debt             $ 3,300      
Debt conversion, shares issued (in shares) | shares           2,983,011 4,182,320      
Debt conversion, shares issued, value             $ 327,100      
Carrying amount             152,800      
Aggregate consideration for principal amount exchanged             501,700      
Convertible senior notes             156,100      
Debt instrument, equity component             $ 345,600