Quarterly report pursuant to Section 13 or 15(d)

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

v3.4.0.3
Stock-Based Awards (Stock-Based Compensation Expense) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Stock-based compensation expense before income taxes $ 5,376 $ 4,657
Income tax benefit (1,876) (1,651)
Stock-based compensation expense after income taxes 3,500 3,006
Selling and marketing    
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Allocated Share-based compensation expense 1,808 1,554
General and administrative    
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Allocated Share-based compensation expense $ 3,568 $ 3,103