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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2012
Stock-Based Compensation [Abstract]  
Summary of restricted stock awards activity under the plan
For the three and nine months ended September 30, 2012, the Company recognized $1.8 million and $5.6 million, respectively, of compensation expense related to restricted stock awards. As of September 30, 2012 there was $6.5 million of unrecognized compensation cost related to the unvested awards which, absent significant forfeitures in the future, is expected to be recognized over a weighted average period of approximately 2.6 years. A summary of restricted stock awards activity under the Plan for the nine months ended September 30, 2012 is as follows:

   
Number
of Shares
  
Weighted Average
Grant Date
Fair Value
  
Aggregate
Intrinsic
Value
 
Granted and Unvested - January 1, 2012
  1,185,832  $19.65  $14,633,167 
Vested
  (208,332) $24.36   2,626,729 
Granted
  293,333  $14.39   3,355,730 
Forfeited
  (120,833) $13.47   - 
Total Granted and Unvested
  1,150,000  $18.10   13,156,000 
Approved for grant
  888,335  
(a)
   10,162,552 
Total Awarded and Unvested – September 30, 2012
  2,038,335  
n.a.
   23,318,552 
 

(a)
Grant date fair value cannot be determined currently because the related performance targets for future years have not yet been established by the Compensation Committee.
Scheduled vesting of outstanding unvested restricted stock unit awards
The outstanding unvested awards at September 30, 2012 are scheduled to vest as follows, subject where applicable to the achievement of performance targets. As described above, certain performance targets have not yet been established.

Vesting Date
 
Number
of Awards
     
2013
 
905,000
2014
 
408,335
2015
 
150,000
2016
 
165,000
2017
 
410,000
Total
 
2,038,335
Stock option activity under the plan
A summary of stock option activity under the Plan for the nine months ended September 30, 2012 is as follows:

      
Weighted Average
 
   
Number
of Shares
  
Grant Date
Fair Value
  
Exercise
Price
 
Total Granted and Outstanding - January 1, 2012
  1,225,465  $10.11  $18.45 
Granted
  165,000  $5.65  $19.51 
Forfeited
  (75,000) $7.20  $- 
Total Granted and Outstanding
  1,315,465  $9.72  $18.91 
Approved for grant
  830,000  
(a)
  $12.80 
Total Awarded and Outstanding – September 30, 2012
  2,145,465  
n.a.
  $16.55 

(a)
Grant date fair value cannot be determined currently because the related performance targets for future years have not yet been established by the Compensation Committee.
Key assumptions used in determining fair value of awards
During 2009, the Compensation Committee approved the award of 750,000 stock options that vest in five equal annual tranches from 2010 to 2014 subject to the achievement of pre-tax income performance targets established by the Compensation Committee. In March 2012, the Compensation Committee established the 2012 pre-tax income performance target for the fourth tranche of 150,000 stock options awarded in 2009. During May 2012, the Compensation Committee approved the award of 15,000 stock options that vest subject to service-based requirements only. The fair values of these stock options were determined during the nine months ended September 30, 2012 based on the Black Scholes option pricing model using the following key assumptions:

Number of Shares
  150,000   15,000 
Risk-free interest rate
  0.88%   1.12% 
Expected life of options
 
4.4 years
  
7.3 years
 
Expected volatility of underlying stock
  53.89%   50.59% 
Expected quarterly dividends (per share)
  0.00   0.00