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Convertible Senior Notes Due 2023 - Narrative (Details)
1 Months Ended 9 Months Ended
Sep. 30, 2022
USD ($)
$ / shares
Dec. 31, 2021
USD ($)
Mar. 31, 2018
day
$ / shares
Rate
shares
Sep. 30, 2022
USD ($)
$ / shares
Jan. 01, 2022
USD ($)
Debt Instrument [Line Items]          
Strike price of the warrant transactions (in dollars per share) | $ / shares $ 80.91   $ 80.91 $ 80.91  
Accounting Standards Update 2020-06          
Debt Instrument [Line Items]          
Long-term debt | $         $ 20,600,000
Convertible Debt          
Debt Instrument [Line Items]          
Interest rate     0.625%    
Principal amount of debt | $ $ 402,500,000 $ 402,500,000   $ 402,500,000  
Conversion rate for the notes (in shares per $1,000 principal amount)       0.0168545  
Conversion price, per share of common stock (in dollars per share) | $ / shares $ 59.33   $ 59.33 $ 59.33  
Convertible note hedge options issued (in shares) | shares     402,500    
Common stock issued upon conversion of notes (in shares) | shares     6,800,000    
Warrants issued (in shares) | shares     6,783,939    
Number of shares per warrant entitled to holder (in shares) | shares     1    
Long-term debt | $ $ 401,438,000 379,252,000   $ 401,438,000  
Conversion of debt to equity | $ $ 0 $ 0      
Convertible Debt | Conversion Circumstance One          
Debt Instrument [Line Items]          
Threshold trading days (whether or not consecutive) | day     20    
Consecutive trading day period (in days) | day     30    
Conversion rate of the notes on trading day (as percent)     130.00%    
Conversion option stock price trigger (in dollars per share) | $ / shares     $ 77.13    
Convertible Debt | Conversion Circumstance Two          
Debt Instrument [Line Items]          
Threshold trading days (whether or not consecutive) | day     5    
Consecutive trading day period (in days) | day     10    
Conversion rate of the notes on trading day (as percent) | Rate     98.00%