Quarterly report pursuant to Section 13 or 15(d)

Share Based Compensation (Expense) (Details 1)

v2.4.0.6
Share Based Compensation (Expense) (Details 1) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Share based compensation expense and related tax benefit    
Share-based compensation expense $ 8,021 $ 5,303
Tax (expense) benefit $ 2,684 $ 1,759