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STOCK-BASED COMPENSATION (Tables)
 12 Months Ended
Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity
The following table summarizes activity under the Plans relating to stock options:
Stock Options
Number of
Shares
 
Weighted Average
Exercise Price
 
Weighted Average
Remaining
Contractual Term
(in years)
 
Aggregate
Intrinsic Value
as of 12/31/13
(in thousands)
Outstanding at January 1, 2013
97,200

 
$
15.10

 
1.96
 
$
3,880

Exercised
(61,200
)
 
6.49

 
 
 
 

Outstanding, exercisable and vested at December 31, 2013
36,000

 
$
29.73

 
4.04
 
$
1,088
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity
The following table summarizes information about restricted stock awards for the year ended December 31, 2013:
Restricted Stock
Number of
Shares
 
Weighted Average
Grant-Date
Fair Value
Unvested at January 1, 2013
352,827

 
$
50.10

Granted
297,123

 
55.35

Vested
(72,661
)
 
44.57

Forfeited
(74,707
)
 
53.69

Unvested at December 31, 2013
502,582

 
$
53.47
Schedule of Nonvested Performance-based Units Activity
The following table summarizes information about performance stock awards for the year ended December 31, 2013:
Performance Stock
Number of
Shares
 
Weighted Average
Grant-Date
Fair Value
Unvested at January 1, 2013
65,336

 
$
66.96

Granted
114,453

 
54.27

Forfeited
(69,928
)
 
66.12

Unvested at December 31, 2013
109,861

 
$
54.27