Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.0.8
Stock-Based Awards (Stock-Based Compensation Expense) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Stock-based compensation expense before income taxes $ 3,881 $ 3,024 $ 11,691 $ 10,279
Income tax benefit (1,401) (1,108) (4,224) (3,697)
Stock-based compensation expense after income taxes 2,480 1,916 7,467 6,582
Selling And Marketing [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Allocated Share-based compensation expense 1,135 818 3,424 2,674
General And Administrative [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Allocated Share-based compensation expense $ 2,746 $ 2,206 $ 8,267 $ 7,605