Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Employee Benefits and Compensation Plans - Summary of Share Option Awards (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Weighted-Average Contractual Term (years)    
Options Outstanding, Weighted-Average Contractual Term 5 years 2 months 4 days 5 years 5 months 1 day
Aggregate Intrinsic Value    
Options Outstanding, Aggregate Intrinsic Value   $ 33,413
Time-Based Option Awards    
Number of Share Option Awards    
Outstanding as of January 1, 2020 4,918,554  
Exercised (48,221)  
Forfeited and cancelled (25,000)  
Outstanding as of March 31, 2020 4,845,333 4,918,554
Weighted-Average Exercise Price    
Outstanding as of January 1, 2020 $ 51.84  
Exercised 44.38  
Forfeited and cancelled 56.19  
Outstanding as of March 31, 2020 $ 51.89 $ 51.84
Performance-Based Option Awards    
Number of Share Option Awards    
Outstanding as of January 1, 2020 115,489  
Exercised (906)  
Outstanding as of March 31, 2020 114,583 115,489
Weighted-Average Exercise Price    
Outstanding as of January 1, 2020 $ 59.11  
Exercised 19.00  
Outstanding as of March 31, 2020 $ 59.43 $ 59.11
Market-Based Awards    
Number of Share Option Awards    
Outstanding as of January 1, 2020 208,333  
Exercised 0  
Forfeited and cancelled 0  
Outstanding as of March 31, 2020 208,333 208,333
Weighted-Average Exercise Price    
Outstanding as of January 1, 2020 $ 59.43  
Exercised 0  
Forfeited and cancelled 0  
Outstanding as of March 31, 2020 $ 59.43 $ 59.43