Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Awards (Stock-Based Compensation Expense) (Details)

v3.5.0.2
Stock-Based Awards (Stock-Based Compensation Expense) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Stock-based compensation expense before income taxes $ 4,239 $ 4,389 $ 14,698 $ 13,814
Income tax benefit (1,493) (1,539) (5,134) (4,897)
Stock-based compensation expense after income taxes 2,746 2,850 9,564 8,917
Selling and marketing        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Allocated Share-based compensation expense 1,369 1,472 4,880 4,624
General and administrative        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Allocated Share-based compensation expense $ 2,870 $ 2,917 $ 9,818 $ 9,190