Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
Stock-Based Awards (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, Compensation Cost [Line Items]    
Allocated Share-based compensation expense $ 4,704 $ 5,376
Income tax benefit (1,240) (1,876)
Stock-based compensation expense after income taxes 3,464 3,500
Selling and marketing    
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Allocated Share-based compensation expense 1,588 1,808
General and administrative    
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Allocated Share-based compensation expense $ 3,116 $ 3,568