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Share-Based Compensation Plans (Tables)
6 Months Ended
Jun. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Issuance of new grants
The following table summarizes the new grants issued during the six months ended June 30, 2013:
Grant date
Restricted
stock
 
Grant date fair
value of
restricted stock
 
Stock options
 
Grant date
fair value of
stock
options
 
Performance
shares
 
Grant date fair
value of
performance
shares
January 2, 2013
1,805

 
$
25.20

 

 
$

 

 
$

January 22, 2013
47,994

 
$
23.90

 
77,715

 
$
14.77

 
95,991

 
$
27.41

February 4, 2013
18,668

 
$
22.63

 
17,692

 
$
14.00

 
21,828

 
$
25.96

April 1, 2013
157,142

 
$
18.51

 
73,290

 
$
11.39

 
28,662

 
$
21.23

May 21, 2013
111,193

 
$
13.66

 

 
$

 

 
$

Summary of stock option and SAR's activity
The following options and stock appreciation rights were exercised during the six months ended June 30, 2013:
Award Type
Number of Units
 
Weighted Average
Exercise Price
Options
926

 
$
20.80

Stock Appreciation Rights
3,846

 
$
15.40

Weighted average fair value of SAR's, performance units and RSU's outstanding
The following shows the weighted average fair value of SARs outstanding at June 30, 2013: 
  
SARs
Weighted average fair value
$
4.05

Options and SAR's exercisable
The following table shows the options and SARs exercisable at June 30, 2013:
Options
Exercisable
 
Weighted
Average Exercise
Price
 
SARs
Exercisable
 
Weighted
Average Exercise
Price
256,336

 
$
32.92

 
65,019

 
$
14.21