v3.7.0.1
Schedule of Pre-Tax Stock-Based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award    
Stock-based compensation expense $ 7,285 $ 5,916
RSUs    
Share-based Compensation Arrangement by Share-based Payment Award    
Stock-based compensation expense 7,279 5,879
Stock Options    
Share-based Compensation Arrangement by Share-based Payment Award    
Stock-based compensation expense $ 6 $ 37