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Share-Based Compensation - Employee Share Option Exchange Program (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Sep. 25, 2015
USD ($)
$ / shares
shares
Aug. 28, 2015
Mar. 31, 2016
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Share-Based Compensation            
Vesting period 3 years          
Total incremental stock-based compensation expense recognized $ 1,400          
Share-based compensation expense       $ 60,450 $ 51,313 $ 49,145
Options            
Share-Based Compensation            
Options exchanged (in shares) | shares 1,975,009          
Share-based compensation expense       $ 6,381 8,441 7,969
RSUs            
Share-Based Compensation            
Exchange ratio   2        
Vesting period     5 years      
RSUs issued (in shares) | shares 987,496     3,959,496    
Fair value (USD per share) | $ / shares $ 12.43          
Share-based compensation expense       $ 39,520 34,077 25,959
Minimum | RSUs            
Share-Based Compensation            
Vesting period   3 years        
Maximum | RSUs            
Share-Based Compensation            
Vesting period   4 years        
Employer Share Option Exchange Program            
Share-Based Compensation            
Share-based compensation expense       $ 0 $ 300 $ 500