XML 49 R38.htm IDEA: XBRL DOCUMENT v3.24.3
Debt (Details) - Convertible Debt
 3 Months Ended 9 Months Ended
Sep. 30, 2024
USD ($)
day
$ / shares
Jun. 30, 2024
day
Sep. 30, 2023
USD ($)
Sep. 30, 2024
USD ($)
$ / shares
Sep. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
Jan. 11, 2021
USD ($)
May 04, 2020
USD ($)
Line of Credit Facility [Line Items]                
Convertible notes, conversion price (in dollars per share) | $ / shares $ 14.75     $ 14.75        
2028 Convertible Notes                
Line of Credit Facility [Line Items]                
Debt instrument, face amount             $ 345,000,000  
Stated interest rate (as a percent) 0.25%     0.25%   0.25% 0.25%  
Interest expense, contractual coupon interest $ 200,000   $ 200,000 $ 600,000 $ 600,000      
Interest expense, accretion of debt discount 400,000   400,000 1,100,000 1,100,000      
Interest expense, amortization of debt issuance costs 8,500   8,500 $ 26,000 26,000      
Effective interest rate on convertible notes (as a percent)       0.70%        
2028 Convertible Notes | Level 2                
Line of Credit Facility [Line Items]                
Estimated fair value of debt $ 285,900,000     $ 285,900,000   $ 262,400,000    
2028 Convertible Notes | Debt Instrument, Redemption, Period One                
Line of Credit Facility [Line Items]                
Conversion price on applicable trading day (as a percent) 130.00% 130.00%            
Threshold trading days (in days) | day 20 20            
Consecutive trading days (in days) | day 30 30            
2025 Convertible Notes                
Line of Credit Facility [Line Items]                
Debt instrument, face amount               $ 201,300,000
Stated interest rate (as a percent) 1.25%     1.25%   1.25%   1.25%
Interest expense, contractual coupon interest $ 600,000   600,000 $ 1,900,000 1,900,000      
Interest expense, accretion of debt discount 300,000   300,000 900,000 900,000      
Interest expense, amortization of debt issuance costs 38,700   $ 37,900 $ 100,000 $ 100,000      
Effective interest rate on convertible notes (as a percent)       1.96%        
2025 Convertible Notes | Level 2                
Line of Credit Facility [Line Items]                
Estimated fair value of debt $ 196,200,000     $ 196,200,000   $ 197,300,000    
2025 Convertible Notes | Debt Instrument, Redemption, Period One                
Line of Credit Facility [Line Items]                
Conversion price on applicable trading day (as a percent) 130.00% 130.00%            
Threshold trading days (in days) | day 20 20            
Consecutive trading days (in days) | day 30 30