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Share-Based Compensation Level 3 (Tables)
3 Months Ended
Mar. 31, 2012
Share-based Compensation [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The fair values of our stock options are calculated using the following weighted average assumptions for the three months ended March 31, 2012:
 
 
Three Months Ended
Assumptions
 
March 31, 2012
Dividend yield
 
1.8
%
Expected volatility
 
40.8
%
Risk-free interest rate
 
0.8
%
Expected holding period (in years)
 
5.0

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
The following table sets forth stock option activity for the three months ended March 31, 2012:
 
Options
 
Weighted-Average
Exercise Price
Outstanding at December 31, 2011
13,404,216

 
$
7.88

Granted
2,023,500

 
11.18

Exercised
(422,234
)
 
5.50

Outstanding at March 31, 2012
15,005,482

 
$
8.40

Exercisable at March 31, 2012
10,642,843

 
$
7.82

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]
Restricted share activity for the three months ended March 31, 2012 was as follows:
 
Restricted
shares
 
Weighted-Average
Grant-Date
Fair Value
Nonvested restricted shares at December 31, 2011
1,165,170

 
$
7.53

Granted
483,170

 
11.18

Vested
(520,161
)
 
6.05

Nonvested restricted shares at March 31, 2012
1,128,179

 
$
9.78