XML 62 R50.htm IDEA: XBRL DOCUMENT v3.22.0.1
Debt - Additional Information (Details)
1 Months Ended
May 14, 2018
day
Jul. 05, 2017
USD ($)
day
$ / shares
Jul. 31, 2017
Dec. 31, 2021
USD ($)
$ / shares
Oct. 01, 2021
USD ($)
May 31, 2018
USD ($)
Debt Instrument [Line Items]            
Principal amount | $       $ 316,250,000 $ 316,250,000  
2024 Convertible Notes            
Debt Instrument [Line Items]            
Stated interest rate   2.875% 2.875%      
Principal amount | $   $ 143,750,000        
Effective interest rate       3.35%    
2024 Convertible Notes | Common Stock Class A Non-voting            
Debt Instrument [Line Items]            
Conversion rate per $1,000 principal amount     0.1      
Conversion price, per share (in dollars per share) | $ / shares   $ 10.00        
2024 Convertible Notes | Senior Notes            
Debt Instrument [Line Items]            
Principal amount | $       $ 143,750,000    
2024 Convertible Notes | Senior Notes | Common Stock Class A Non-voting | Holder Option            
Debt Instrument [Line Items]            
Threshold trading days (whether or not consecutive)   20        
Threshold consecutive trading days   30        
Threshold percentage of stock price trigger   130.00%        
Business day threshold   5 days        
Threshold consecutive trading days   5 days        
Maximum percentage of stock price product   98.00%        
2024 Convertible Notes | Senior Notes | Common Stock Class A Non-voting | Company Option            
Debt Instrument [Line Items]            
Threshold trading days (whether or not consecutive)   20        
Threshold consecutive trading days   30        
Threshold percentage of stock price trigger   130.00%        
Repurchase price, percent of principal amount   100.00%        
2025 Convertible Notes | Senior Notes            
Debt Instrument [Line Items]            
Stated interest rate           2.375%
Principal amount | $       $ 172,500,000   $ 172,500,000
Effective interest rate       2.88%    
Conversion rate per $1,000 principal amount 0.0628931          
Threshold trading days (whether or not consecutive) 20          
Threshold consecutive trading days 30          
Debt instrument, interest rate, semi-annual stated percentage           2.375%
Share price (in dollars per share) | $ / shares       $ 15.90    
2025 Convertible Notes | Senior Notes | Debt Instrument, Redemption, Period One            
Debt Instrument [Line Items]            
Threshold consecutive trading days 30          
Threshold percentage of stock price trigger 130.00%          
Repurchase price, percent of principal amount 100.00%          
2025 Convertible Notes | Senior Notes | Debt Conversion, Condition One            
Debt Instrument [Line Items]            
Threshold trading days (whether or not consecutive) 20          
Threshold percentage of stock price trigger 130.00%          
2025 Convertible Notes | Senior Notes | Debt Conversion, Condition Two            
Debt Instrument [Line Items]            
Threshold consecutive trading days 5          
Threshold percentage of stock price trigger 98.00%          
Threshold business days 5