Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation Stock Options (Details)

v2.4.0.8
Share-Based Compensation Stock Options (Details) (USD $)
12 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
1997 Plan and 2003 Plan [Member]
Dec. 31, 2013
1997 Plan and 2003 Plan [Member]
Dec. 31, 2012
1997 Plan and 2003 Plan [Member]
Dec. 31, 2011
1997 Plan and 2003 Plan [Member]
Jun. 22, 2011
Common Stock
2011 Incentive Plan [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized               35,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number       638,000 480,000 638,000    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value         $ 0      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value         $ 2,000,000 $ 700,000 $ 0  
Proceeds from Stock Options Exercised 3,700,000 800,000 0          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price       $ 29.08 $ 30.73 $ 29.08    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term       2 years 3 months 8 days 1 year 3 months 25 days      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value         5,947,000      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross         0      
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price         $ 0.00      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period         (155,000)      
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price         $ 23.81      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period         (3,000)      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price         $ 37.80      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number         480,000      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price         $ 30.73      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term         1 year 3 months 25 days      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value         $ 5,947,000