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Stock Compensation (Tables)
12 Months Ended
Dec. 31, 2012
Long Term Incentive Plan [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
   Shares  Value(1)
   Class A Class B  Class A  Class B
   (Thousands)      
Long-Term Incentive Plan          
Nonvested at December 31, 2009  1,097  28 $ 18.8 $ 0.8
Granted during period  1,568  -   32.6   -
Vested during period  (1,030)  -   (21.1)   -
Forfeited during period  (145)  -   (2.7)   -
Nonvested at December 31, 2010  1,490  28   27.6   0.8
Granted during period  550  -   13.0   -
Vested during period  (307)  (28)   (5.3)   (0.8)
Forfeited during period  (175)  -   (3.3)   -
Nonvested at December 31, 2011  1,558  -   32.0   -
Granted during period  774  -   18.8   -
Vested during period  (513)  -   (10.0)   -
Forfeited during period  (115)  -   (2.5)   -
Nonvested at December 31, 2012  1,704  - $ 38.3 $ -
            
            
(1) Value represents grant date fair value.          
Short Term Incentive Plan [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
  Shares  Value(1)
  (Thousands)   
Short-Term Incentive Plan    
Nonvested at December 31, 2009 278   3.2
Granted during period -   -
Vested during period (278)   (3.2)
Forfeited during period -   -
Nonvested at December 31, 2010 -   -
Granted during period 185   4.7
Vested during period (10)   (0.3)
Forfeited during period (4)   (0.1)
Nonvested at December 31, 2011 171   4.3
Granted during period 104   2.5
Vested during period (170)   (4.3)
Forfeited during period (9)   (0.2)
Nonvested at December 31, 2012 96 $ 2.3
      
      
(1) Value represents grant date fair value.    
Director Stock Plan [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
   Shares  Value(1)
   Class A Class B  Class A  Class B
   (Thousands)      
Board of Directors Stock Grants          
Nonvested at December 31, 2009  56  - $ 0.7 $ -
Granted during period  33  -   0.7   -
Vested during period  (56)  -   (0.7)   -
Forfeited during period  -  -   -   -
Nonvested at December 31, 2010  33  -   0.7   -
Granted during period  30  -   0.7   -
Vested during period  (33)  -   (0.7)   -
Forfeited during period  (3)  -   (0.1)   -
Nonvested at December 31, 2011  27  -   0.6   -
Granted during period  29  -   0.7   -
Vested during period  (27)  -   (0.6)   -
Forfeited during period  -  -   -   -
Nonvested at December 31, 2012  29  - $ 0.7 $ -
            
            
(1) Value represents grant date fair value.          
Executive Incentive Plan [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
  Shares(1) Value(2)
  (Thousands)  
Executive Incentive Plan   
Nonvested at December 31, 2009 1,840  20.9
Vested during period (466)  (5.3)
Forfeited during period (8)  (0.2)
Nonvested at December 31, 2010 1,366  15.4
Vested during period (446)  (5.1)
Forfeited during period (40)  (0.5)
Nonvested at December 31, 2011 880  9.8
Vested during period -  -
Forfeited during period -  -
Nonvested at December 31, 2012 880$ 9.8
     
     
(1) The Nonvested balance as of December 31, 2009 excludes 753 shares sold to offset personal income tax amounts due at the five-year anniversaries of the Executive Incentive Plan grant dates.    
(2) Value represents grant date fair value.