Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Summary Of Stock-Based Compensation Expense) (Details)

v3.3.0.814
Stock-Based Compensation (Summary Of Stock-Based Compensation Expense) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense $ 2,792 $ 2,928 $ 8,731 $ 8,136
Employee Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense 898 909 2,727 2,652
Restricted Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense $ 1,894 $ 2,019 $ 6,004 $ 5,484