Annual report pursuant to Section 13 and 15(d)

Employee Benefits and Share-Based Compensation - Summary of Share Option Awards (Details)

v3.19.3.a.u2
Employee Benefits and Share-Based Compensation - Summary of Share Option Awards (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended 36 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2019
Weighted-Average Contractual Term (years)      
Options Outstanding, Weighted-Average Contractual Term 5 years 5 months 1 day 6 years 2 months 19 days  
Vested and expected to vest 5 years 4 months 28 days    
Exercisable 5 years 4 months 28 days    
Aggregate Intrinsic Value      
Options Outstanding, Aggregate Intrinsic Value $ 33,413 $ 13,946 $ 33,413
Vested and expected to vest 33,413   33,413
Exercisable $ 33,411   $ 33,411
Time-Based Option Awards      
Number of Share Option Awards      
Outstanding as of January 1, 2019 5,686,793    
Granted     0
Exercised (636,073)    
Forfeited and cancelled (132,166)    
Outstanding as of December 31, 2019 4,918,554 5,686,793 4,918,554
Vested and expected to vest as of end of period 4,918,554   4,918,554
Exercisable as of end of period 4,917,721   4,917,721
Weighted-Average Exercise Price      
Outstanding as of January 1, 2019 $ 50.65    
Exercised 40.30    
Forfeited and cancelled 56.13    
Outstanding as of December 31, 2019 51.84 $ 50.65 $ 51.84
Vested and expected to vest as of end of period 51.84   51.84
Exercisable as of end of period $ 51.84   $ 51.84
Performance-Based Option Awards      
Number of Share Option Awards      
Outstanding as of January 1, 2019 410,499    
Granted 0    
Exercised (138,759)    
Forfeited and cancelled (156,251)    
Outstanding as of December 31, 2019 115,489 410,499 115,489
Vested and expected to vest as of end of period 115,489   115,489
Exercisable as of end of period 115,489   115,489
Weighted-Average Exercise Price      
Outstanding as of January 1, 2019 $ 45.67    
Exercised 19.00    
Forfeited and cancelled 59.43    
Outstanding as of December 31, 2019 59.11 $ 45.67 $ 59.11
Vested and expected to vest as of end of period 59.11   59.11
Exercisable as of end of period $ 59.11   $ 59.11
Market-Based Option Awards      
Number of Share Option Awards      
Outstanding as of January 1, 2019 208,333    
Outstanding as of December 31, 2019 208,333 208,333 208,333
Weighted-Average Exercise Price      
Outstanding as of January 1, 2019 $ 59.43    
Outstanding as of December 31, 2019 $ 59.43 $ 59.43 $ 59.43