Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.0.6
Stock-Based Awards (Stock-Based Compensation Expense) (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense before income taxes $ 4,650 $ 6,955 $ 10,650 $ 13,282
Income tax benefit (1,488) (2,082) (3,614) (4,210)
Stock-based compensation expense after income taxes 3,162 4,873 7,036 9,072
Selling and Marketing Expense [Member]
       
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense 630 1,115 1,812 2,359
General and Administrative Expense [Member]
       
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation expense $ 4,020 $ 5,840 $ 8,838 $ 10,923