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Incentive Compensation Plans (Tables)
 6 Months Ended
Jun. 30, 2012
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]  
Stock-based Compensation Awards
We issued the following stock-based awards under the 2009 Performance Incentive Plan (the “2009 PIP”) during the six months ended June 30, 2012.
 
Awards
 
Weighted-average
grant-date fair value
(per award)
Stock options
0.6

 
$
4.24

Stock-settled awards
0.8

 
$
11.48

Performance-based awards
1.8

 
$
10.62

Total stock-based compensation awards
3.2