Quarterly report pursuant to Section 13 or 15(d)

Convertible Senior Notes - Narrative (Details)

v3.22.2
Convertible Senior Notes - Narrative (Details)
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jan. 31, 2021
USD ($)
May 31, 2018
USD ($)
d
$ / shares
shares
Jun. 30, 2022
USD ($)
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
option
shares
Debt Instrument [Line Items]            
Gain on extinguishment of debt       $ 3,326,000 $ (7,175,000)  
Adjustments to additional paid-in-capital from warrants           $ 500,000
Payments to unwind warrants           18,400,000
Proceeds from unwinding convertible bond hedges           $ 18,900,000
Number of options under convertible bond hedges | option           598,021
Convertible Notes | 2023 Convertible Senior Notes            
Debt Instrument [Line Items]            
Interest rate (as a percent)   0.75%        
Aggregate principal amount outstanding   $ 750,000,000 $ 115,499,000 115,499,000   $ 343,301,000
Proceeds from debt, net of issuance costs   $ 733,100,000        
Initial conversion rate (shares per $1,000)   0.0040244        
Initial conversion price (USD per share) | $ / shares   $ 248.48        
Debt issuance costs     $ 16,900,000 $ 16,900,000    
Term of debt instrument       5 years    
Effective interest rate (as a percent)     0.50% 0.50%    
Total interest expense     $ 400,000 $ 1,200,000    
Contractual interest expense     200,000 700,000    
Amortized issuance costs     200,000 500,000    
Repurchased amount of debt instrument $ 20,300,000   62,000,000 227,800,000   152,000,000
Repayments of notes 19,100,000   60,000,000 223,700,000   156,000,000
Accrued interest portion of repurchased amount of debt instrument $ 100,000   10,000.00 400,000   300,000
Outstanding principal amount of debt           $ 343,300,000
Gain on extinguishment of debt     1,800,000 3,300,000    
Increase (decrease) in debt discount     $ 300,000 $ 1,200,000    
Warrants issued in public offering (shares) | shares   3,018,327       2,559,254
Payments for convertible bond hedges   $ 140,300,000        
Warrant exercise price (USD per share) | $ / shares   $ 315.38        
Adjustments to additional paid-in-capital from warrants   $ 90,000,000        
Accrued Interest           $ 300,000
Convertible Notes | 2023 Convertible Senior Notes | Maximum            
Debt Instrument [Line Items]            
Initial conversion rate (shares per $1,000)   0.0052317        
Initial conversion price (USD per share) | $ / shares   $ 191.14        
Convertible Notes | 2023 Convertible Senior Notes | Debt Instrument, Redemption, Period One            
Debt Instrument [Line Items]            
Threshold trading days | d   20        
Consecutive trading days | d   30        
Stock price trigger to classify convertible debt as current (as a percent)   130.00%        
Convertible Notes | 2023 Convertible Senior Notes | Debt Instrument, Redemption, Period Two            
Debt Instrument [Line Items]            
Threshold trading days | d   5        
Consecutive trading days | d   10        
Maximum threshold of debt trading price trigger (as a percent)   98.00%