v3.25.1
Convertible bonds (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Jan. 01, 2021
Jun. 19, 2019
Convertible bonds          
Purchased call option $ 77,000        
Initial conversion price $ 127.9        
Retained earnings $ 2,796,745 $ 2,947,160      
Settlement of capped call options $ 0 7,775 $ 0    
Adjustment          
Convertible bonds          
Retained earnings       $ 86,700  
ADS          
Convertible bonds          
Initial conversion price $ 95.9        
Number of shares agreed to sell 10.4        
Convertible          
Convertible bonds          
Aggregate principle amount         $ 1,000
2025 Convertible Senior Notes          
Convertible bonds          
Aggregate principle amount         $ 500,000
Interest rate (as a percent)         0.75%
Proceeds from convertible debt $ 491,000        
Debt issuance costs 9,000        
Amortization of debt issuance costs 7,000        
Amount allocated as deduction to the equity component 2,000        
Repayment of convertible bonds   432,000      
2026 Convertible Senior Notes          
Convertible bonds          
Aggregate principle amount         $ 500,000
Interest rate (as a percent)         1.375%
Proceeds from convertible debt 491,000        
Debt issuance costs 9,000        
Amortization of debt issuance costs 6,000        
Amount allocated as deduction to the equity component 3,000        
Repayment of convertible bonds $ 406,000        
Notes due 2025 and 2026          
Convertible bonds          
Initial conversion rate         $ 10.4271
Initial conversion price         $ 95.9
Repurchase price of the principal amount, percentage 100.00%        
Interest expense $ 435 $ 1,583