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STOCK-BASED COMPENSATION (Tables)
 12 Months Ended
Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Weighted-average assumptions
The fair value of each stock option award on the date of the grant was calculated using the following weighted-average assumptions:
 
2014
 
2013
 
2012
Expected volatility
61.0
%
 
61.8
%
 
64.8
%
Risk-free interest rate
2.50
%
 
2.13
%
 
1.98
%
Expected life of options
5.7 years

 
5.5 years

 
5.8 years

Dividend rate
—

 
—

 
—

Fair value of options
$
4.32

 
$
6.24

 
$
4.00
Stock option activity
Stock option activity for the Equity Compensation Plans through December 31, 2014 was as follows:
 
Options
 
Weighted
Average
Exercise Price
 
Aggregate
Intrinsic Value
(thousands)
 
Weighted Average
Remaining
Contractual Life
Balance at December 31, 2013
5,732,821

 
$
7.59

 
$
6,185

 
7.7 years
Granted
1,906,000

 
$
7.68

 
 

 
 
Exercised
(272,622
)
 
$
5.38

 
 

 
 
Forfeited and expired
(529,193
)
 
$
8.33

 
 

 
 
Balance at December 31, 2014
6,837,006

 
$
7.65

 
$
4,150

 
7.4 years
Outstanding options less expected forfeitures at December 31, 2014
6,415,834

 
$
7.56

 
$
4,127

 
7.4 years
Exercisable at December 31, 2014
3,523,697

 
$
6.69

 
$
3,933

 
6.2 years
Outstanding and exercisable stock options
The following table outlines our outstanding and exercisable stock options as of December 31, 2014:
 
 
Options Outstanding
 
Options Exercisable
Range of Option Exercise Price
 
Outstanding Options
 
Weighted Average Exercise Price
 
Weighted Average Remaining Contractual Life
 
Options Exercisable
 
Weighted Average Exercise Price
$1.71 - $4.24
 
409,250

 
$
2.73

 
4.4 years
 
409,250

 
$
2.73

$4.42 - $6.61
 
981,256

 
$
5.16

 
5.7 years
 
932,756

 
$
5.12

$6.62- $6.65
 
1,681,000

 
$
6.63

 
6.8 years
 
1,226,000

 
$
6.63

$6.67 - $9.16
 
2,471,500

 
$
7.82

 
8.6 years
 
524,334

 
$
8.27

$11.04 - $16.63
 
1,294,000

 
$
12.08

 
8.2 years
 
431,357

 
$
12.08

All options
 
6,837,006

 
$
7.65

 
7.4 years
 
3,523,697

 
$
6.69
Restricted stock award activity
Restricted stock award activity through December 31, 2014 was as follows:
 
Restricted
Stock
 
Weighted Average
Award
Date Fair Value
 
Weighted Average
Remaining
Recognition Period
Balance at December 31, 2013
370,000

 
$
12.31

 
0.3 years
Granted
100,000

 
$
6.25

 
 
Awards Vested
(290,003
)
 
$
12.08

 
 
Canceled
—

 
$
—

 
 
Balance at December 31, 2014
179,997

 
$
9.31

 
0.4 years
SAR activity
SAR activity through December 31, 2014 was as follows:
 
Stock Appreciation Rights
 
Weighted
Average
Exercise Price
 
Weighted Average
Remaining
Recognition Period
Balance at December 31, 2013
330,000

 
$
6.73

 
1.7 years
Granted
—

 
$
—

 

Exercised
—

 
$
—

 

Canceled
(10,000
)
 
$
9.16

 

Balance at December 31, 2014
320,000

 
$
6.65

 
0.3 years