Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
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, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]    
Options Outstanding, Weighted- Average Contractual Term 7 years 8 months 1 day 7 years 9 months 22 days
Options Outstanding, Aggregate Intrinsic Value $ 51,491 $ 35,429
Time Based Options    
Number of Share Option Awards    
Outstanding as of January 1, 2017 7,775,058  
Granted  
Exercised (270,157)  
Forfeited and cancelled (233,948)  
Outstanding as of March 31, 2017 7,270,953 7,775,058
Weighted-Average Exercise Price    
Outstanding as of January 1, 2017 $ 48.04  
Granted  
Exercised 27.01  
Forfeited and cancelled 56.52  
Outstanding as of March 31, 2017 $ 48.55 $ 48.04
Performance Based Options    
Number of Share Option Awards    
Outstanding as of January 1, 2017 432,978  
Granted 156,249  
Exercised (49,315)  
Forfeited and cancelled (93,749)  
Outstanding as of March 31, 2017 446,163 432,978
Weighted-Average Exercise Price    
Outstanding as of January 1, 2017 $ 23.86  
Granted 59.43  
Exercised 19.00  
Forfeited and cancelled 59.43  
Outstanding as of March 31, 2017 $ 29.38 $ 23.86
Market-Based Awards    
Number of Share Option Awards    
Outstanding as of January 1, 2017 208,333  
Granted  
Exercised  
Forfeited and cancelled  
Outstanding as of March 31, 2017 208,333 208,333
Weighted-Average Exercise Price    
Outstanding as of January 1, 2017 $ 59.43  
Granted  
Exercised  
Forfeited and cancelled  
Outstanding as of March 31, 2017 $ 59.43 $ 59.43