XML 40 R40.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stock-based Compensation Stock-based Compensation (Details 4) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Stock Option Awards
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average grant date fair value per share $ 6.43 $ 11.68 $ 6.43 $ 11.68
Total fair value of awards granted $ 4,104 $ 4,513 $ 4,104 $ 4,513
Total fair value of awards vested 5,970 5,030 5,985 7,962
Total intrinsic value of options exercised 939 5,798 2,358 13,153
Restricted Stock Unit Awards
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average grant date fair value per share $ 17.21 $ 34.50 $ 17.22 $ 34.48
Total fair value of awards granted 30,471 21,337 30,522 21,524
Total fair value of awards vested 11,763 18,083 12,103 18,933
Employee Stock Purchase Plan
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average grant date fair value per share $ 5.02 $ 7.36 $ 5.02 $ 7.36
Total fair value of shares estimated to be issued $ 1,106 $ 1,051 $ 1,106 $ 1,051