XML 47 R36.htm IDEA: XBRL DOCUMENT v3.20.2
Long-term Debt - Additional Information (Details)
1 Months Ended 3 Months Ended 9 Months Ended
Oct. 31, 2018
USD ($)
$ / shares
shares
Sep. 30, 2020
USD ($)
$ / shares
Sep. 30, 2019
USD ($)
Sep. 30, 2020
USD ($)
day
$ / shares
Sep. 30, 2019
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
$ / shares
shares
Nov. 30, 2018
USD ($)
Jan. 31, 2018
USD ($)
Line of Credit Facility [Line Items]                  
Common stock, par value (in dollars per share) | $ / shares   $ 0.0001   $ 0.0001     $ 0.0001    
Convertible Notes                  
Line of Credit Facility [Line Items]                  
Convertible debt fair value   $ 169,500,000   $ 169,500,000          
Interest rate of debt       9.35%          
Unamortized discount   60,500,000   $ 60,500,000          
Debt issuance costs   7,400,000   7,400,000          
Debt issuance cost, equity component   1,900,000   1,900,000          
Debt issuance cost, liability component   5,500,000   $ 5,500,000          
Debt term       5 years          
Term Loan Agreement                  
Line of Credit Facility [Line Items]                  
Repayments of debt       $ 88,600,000          
Credit facility, maximum borrowing capacity $ 100,000,000.0                
Upfront fee of principal amount 0.50%                
Proceeds from line of credit       80,000,000.0          
Warrants issued with debt | shares 341,578           128,932    
Exercise price | $ / shares $ 21.12           $ 34.20    
Interest expense   4,200,000 $ 2,400,000 11,200,000 $ 6,100,000        
Write off of costs       6,600,000          
CRG Servicing LLC Amended And Restated Loan Agreement [Member]                  
Line of Credit Facility [Line Items]                  
Percentage of accrue interest 10.50%                
Percentage of deferred payment 3.00%                
Commitment fee percentage 2.00%                
Secured Revolving Loan Facility                  
Line of Credit Facility [Line Items]                  
Termination fee   500,000   500,000          
Revolving Credit Facility | Secured Revolving Loan Facility                  
Line of Credit Facility [Line Items]                  
Credit facility, maximum borrowing capacity               $ 20,000,000.0 $ 15,000,000.0
Long-term Line of Credit   $ 0   $ 0          
Debt Instrument, Redemption, Period One [Member] | Term Loan Agreement                  
Line of Credit Facility [Line Items]                  
Current borrowing capacity             $ 20,000,000.0    
Senior Notes | Convertible Notes                  
Line of Credit Facility [Line Items]                  
Debt instrument face amount           $ 230,000,000.0      
Debt instrument stated rate   2.625%   2.625%   2.625%      
Proceeds from issuance of debt       $ 222,600,000          
Common stock, par value (in dollars per share) | $ / shares   $ 0.0001   $ 0.0001          
Conversion ratio       0.0209161          
Conversion price | $ / shares   $ 47.81   $ 47.81          
Threshold consecutive trading days | day       30          
Redemption price percentage       100.00%          
Triggering Event 1 | Senior Notes | Convertible Notes                  
Line of Credit Facility [Line Items]                  
Threshold trading days | day       20          
Threshold consecutive trading days | day       30          
Threshold percentage of stock price trigger       130.00%          
Triggering Event 2 | Senior Notes | Convertible Notes                  
Line of Credit Facility [Line Items]                  
Threshold trading days | day       5          
Threshold consecutive trading days | day       5          
Threshold percentage of stock price trigger       98.00%