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Debt, Commitments and Contingencies - Convertible Senior Notes (Details)
6 Months Ended
Jan. 20, 2021
USD ($)
day
$ / shares
Jun. 30, 2022
USD ($)
$ / shares
Jun. 30, 2021
USD ($)
Jan. 01, 2022
Dec. 31, 2021
USD ($)
Mar. 31, 2021
USD ($)
Oct. 06, 2017
USD ($)
Debt Instrument [Line Items]              
Proceeds from convertible debt   $ 0 $ 500,000,000        
Share price (in dollars per share) | $ / shares   $ 61.86          
Convertible Senior Notes due 2026              
Debt Instrument [Line Items]              
Proceeds from convertible debt $ 484,300,000            
Debt issuance costs $ 15,700,000            
Debt instrument, redemption price, percentage 100.00%            
Conversion ratio 6.7939            
Conversion price (in dollars per share) | $ / shares $ 147.19            
Debt discount for conversion option         $ 77,200,000    
Debt issuance costs         2,400,000    
Net carrying value         74,800,000    
Debt discount and debt issuance cost deferred tax liability           $ 18,300,000  
Convertible Senior Notes due 2026 | Redemption period one              
Debt Instrument [Line Items]              
Debt instrument, redemption price, percentage 100.00%            
Threshold percentage stock price trigger 130.00%            
Trading days threshold | day 20            
Consecutive trading days threshold | day 30            
Convertible Senior Notes due 2026 | Redemption period two              
Debt Instrument [Line Items]              
Threshold percentage stock price trigger 130.00%            
Trading days threshold | day 20            
Consecutive trading days threshold | day 30            
Number of business days | day 5            
Number of consecutive trading days | day 10            
Percentage of last reported sale price threshold 98.00%            
Senior Notes | Convertible Senior Notes due 2026              
Debt Instrument [Line Items]              
Debt instrument, face amount $ 500,000,000            
Debt instrument, interest rate 0.00%            
Effective interest rate 4.00%     0.60%      
Debt instrument, fair value   $ 402,500,000     452,500,000    
Revolving Credit Facility | Line of Credit | 2017 Facility              
Debt Instrument [Line Items]              
Long-term debt $ 110,000,000 $ 0     $ 0   $ 72,000,000