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Equity-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Employee Equity-Based Compensation Expense
Employee equity-based compensation expense was recognized as follows:
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
(In thousands)
2013
 
2012
 
2013
 
2012
Restricted stock units
$
489

 
$
240

 
$
864

 
$
396

Performance shares
1,449

 
1,984

 
2,387

 
3,331

Total employee equity-based compensation
$
1,938

 
$
2,224

 
$
3,251

 
$
3,727

Summary of Number of Share-Based Awards Granted
The following table summarizes the number of share-based awards granted under our 2008 Stock Incentive Plan during the six months ended June 30, 2013 and the grant-date fair value of the awards:
 
 
Six Months Ended June 30, 2013
 
Number of
Awards
 
Average Fair Value of
Award Per Share
Restricted stock units
71,452

 
$
43.36

Performance shares
124,513

 
63.46