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
Mar. 31, 2014
Mar. 31, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense before income taxes $ 4,026 $ 3,709
Income tax benefit (1,436) (1,306)
Stock-based compensation expense after income taxes 2,590 2,403
Selling And Marketing [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense 1,193 962
General And Administrative [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock-based compensation expense $ 2,833 $ 2,747