Quarterly report pursuant to Section 13 or 15(d)

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

v3.3.0.814
Employee Benefits and Share Option Plans - Summary of Share Option Awards (Details ) - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]    
Options Outstanding, Weighted- Average Contractual Term 8 years 9 months 18 days 7 years 7 months 10 days
Options Outstanding, Aggregate Intrinsic Value $ 101,781 $ 142,831
Time Based Options    
Number of Share Option Awards    
Outstanding as of January 1, 2015 6,079,881  
Granted 5,070,000  
Exercised (2,090,746)  
Forfeited and cancelled (1,165,874)  
Outstanding as of September 30, 2015 7,893,261 6,079,881
Weighted-Average Exercise Price    
Outstanding as of January 1, 2015 $ 29.92  
Granted 56.62  
Exercised 27.34  
Forfeited and cancelled 34.18  
Outstanding as of September 30, 2015 $ 47.12 $ 29.92
Performance Based Options    
Number of Share Option Awards    
Outstanding as of January 1, 2015 1,457,314  
Granted  
Exercised (493,009)  
Forfeited and cancelled (477,611)  
Outstanding as of September 30, 2015 486,694 1,457,314
Weighted-Average Exercise Price    
Outstanding as of January 1, 2015 $ 19  
Granted  
Exercised $ 19  
Forfeited and cancelled 19  
Outstanding as of September 30, 2015 $ 19 $ 19
Market-Based Awards    
Number of Share Option Awards    
Outstanding as of January 1, 2015  
Granted 208,333  
Exercised  
Forfeited and cancelled  
Outstanding as of September 30, 2015 208,333
Weighted-Average Exercise Price    
Outstanding as of January 1, 2015  
Granted $ 59.43  
Exercised  
Forfeited and cancelled  
Outstanding as of September 30, 2015 $ 59.43