XML 117 R93.htm IDEA: XBRL DOCUMENT v3.20.4
Share-based Payments - Additional Information (Details)
 12 Months Ended
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2018
USD ($)
shares
Dec. 31, 2017
shares
Dec. 31, 2015
Disclosure Of Share Based Payments [Line Items]          
Description of share based payment Under the Employee Stock Option Plans (“ESOP”), stock options of the Company are granted to executives and certain employees of the Group. For options granted prior to January 1, 2016, the exercise price is equal to the fair value of the shares on grant date for employees in the United States and for U.S. citizens and fair value less 30% for the rest of the world. The value of the discount is included in the grant date fair value of the award. For options granted thereafter and through December 31, 2018 under these ESOP plans, the exercise price of the options is equal to the fair value of the shares on grant date for all employees. Generally, the first vesting period (13.5% – 25% of the initial grant) is up to one year from the grant date and subsequently vests at a rate of 6.25% each quarter until fully vested. The exercise price for options is payable in the EUR value of a fixed USD amount; therefore, the Group considers these awards to be USD-denominated. The options are generally granted with a term of five years.During 2019 and 2020, the Company implemented new Employee Stock Option Plans and Director Stock Option Plans (together, the “2019 and 2020 Stock Option Plans”), under which stock options of the Company are granted to executives and employees of the Group and to members of the Company’s Board of Directors, respectively. For options granted under the 2019 and 2020 Stock Option Plans, the exercise price is equal to the fair value of the ordinary shares on grant date or equal to 150% of the fair value of the ordinary shares on grant date. The exercise price is included in the grant date fair value of the award. The options granted to participants under the 2019 and 2020 Stock Option Plans have a first vesting period of three or eight months from date of grant and vest monthly or annually thereafter until fully vested. The options are granted with a term of five years.        
Weighted-average contractual life for stock options outstanding 2 years 10 months 24 days 2 years 10 months 24 days 2 years 10 months 24 days    
Weighted-average share price at exercise for options exercised | $ $ 198.10 $ 141.82 $ 152.33    
Weighted average fair value at measurement date, share options granted | $ $ 36.82 $ 34.63 $ 39.23    
Increase decrease in expected life one year        
Employee Stock Option Plans          
Disclosure Of Share Based Payments [Line Items]          
Description of share based payments award, options exercise price         the exercise price is equal to the fair value of the shares on grant date for employees in the United States and for U.S. citizens and fair value less 30% for the rest of the world.
Options granted period 5 years        
Employee Stock Option Plans | 2020 Plans          
Disclosure Of Share Based Payments [Line Items]          
Options granted period 5 years        
Percentage of fair value of ordinary shares 150.00%        
Employee Stock Option Plans | Vesting Tranche After First Vesting Period          
Disclosure Of Share Based Payments [Line Items]          
Vesting percentage 6.25%        
Employee Stock Option Plans | Bottom of Range | First Vesting Period          
Disclosure Of Share Based Payments [Line Items]          
Vesting percentage 13.50%        
Employee Stock Option Plans | Top of Range | First Vesting Period          
Disclosure Of Share Based Payments [Line Items]          
Vesting percentage 25.00%        
Restricted Stock Units          
Disclosure Of Share Based Payments [Line Items]          
Number of shares granted 1,127,149 715,224 14,383    
Restricted Stock Units | 2020 Plans          
Disclosure Of Share Based Payments [Line Items]          
Vesting period 4 years        
Restricted Stock Awards          
Disclosure Of Share Based Payments [Line Items]          
Number of shares granted 0 0 0    
Restricted Stock Awards | 2017 Acquiree          
Disclosure Of Share Based Payments [Line Items]          
Number of shares issued       61,880  
Restricted Stock Awards | Bottom of Range | 2017 Acquiree          
Disclosure Of Share Based Payments [Line Items]          
Vesting period       2 years  
Restricted Stock Awards | Top of Range | 2017 Acquiree          
Disclosure Of Share Based Payments [Line Items]          
Vesting period       3 years  
Other Contingently Issuable Shares          
Disclosure Of Share Based Payments [Line Items]          
Number of shares granted 34,450 162,320 0    
Other Contingently Issuable Shares | Anchor          
Disclosure Of Share Based Payments [Line Items]          
Vesting period   4 years      
Number of shares granted   162,320      
Grant date fair value of each equity instrument | $   $ 145.21      
Other Contingently Issuable Shares | The Ringer          
Disclosure Of Share Based Payments [Line Items]          
Vesting period 5 years        
Number of shares granted 34,450        
Grant date fair value of each equity instrument | $ $ 145.14