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Share Based Compensation (Tables)
12 Months Ended
Dec. 31, 2011
Share Based Compensation [Abstract]  
Summary of Stock Incentive Plan, Non-Employee Directors Stock Option Plan
A summary of activity under our Stock Incentive Plan and the Non-Employee Directors Stock Option Plan during the year ended December 31, 2011 is presented below:

Options
 
Number
  
Weighted Average Exercise Price
 
Weighted Average Remaining Contractual Term (years)
Aggregate Intrinsic Value
Outstanding at January 1, 2011
  675,575  $24.02    
Granted
  -   -    
Exercised
  (12,677)  6.55    
Forfeited/expired
  (30,564)  21.07    
Outstanding, fully vested and exercisable at December 31, 2011 (1)
  632,334  $24.51 
5.77
$541

(1)
As explained above, all unvested stock options immediately vested and became immediately exercisable.  All such options will remain exercisable for their respective remaining term, regardless of whether the awardees remain employees of Century.
 

Service-based share awards (1)
   
Outstanding at January 1, 2011
  551,382 
Granted
  221,758 
Vested (Awarded)
  (416,719)
Forfeited
  (9,230)
Outstanding at December 31, 2011
  347,191 

(1)
All of our service-based stock awards granted prior to June 7, 2011 vested as explained above.  Awards will settle upon original vesting date or payment schedule for the respective awards.
 
 
Non-vested stock options:
 
Number
  
Weighted Average Fair Value
 
Non-vested options at January 1, 2011
  303,141  $4.92 
Granted
  -   - 
Vested
  (285,077)  4.92 
Forfeited
  (18,064)  4.94 
Non-vested options at December 31, 2011
  -  $- 


   
Year ended December 31,
 
   
2011
  
2010
  
2009
 
Weighted average per share fair value of:
         
Stock options grants
 $-  $-  $4.92 
Service-based share grants
  15.49   12.31   6.41 
Total intrinsic value of option exercises
  72   1   - 
Share-based liabilities paid (1)
  -   1,050   694 
Total fair value of stock options vested during the period
  1,403   112   1,369 

(1)
Share based liabilities paid represent the fair value of shares issued on the vesting date to certain key employees under our performance share program.
Assumptions to estimate the fair value of share awards
We used the following assumptions to estimate the fair value of our share awards for 2011, 2010 and 2009.

   
2011
  
2010
  
2009
 
Risk-free interest rate
  0.10% – 1.11%  0.31% – 1.52%  1.36% – 2.36%
Expected dividend yield
 $0.00  $0.00  $0.00 
Expected volatility
  50% – 134%  107% – 108%  102% – 126%
Expected forfeiture rate
  0% – 3%  0% – 3%  0% – 3%
Expected term (years)
  1.0 – 3.0   1.0 – 3.0   3.0 – 5.0 
 
Share based compensation cost
No share-based compensation cost was capitalized during these periods and there were no significant modifications (other than the accelerated vesting described above) of any share-based awards in 2011, 2010 and 2009.
 

   
Year ended December 31,
 
   
2011
  
2010
  
2009
 
Share-based compensation expense reported:
         
Performance-based stock expense
 $5,549  $5,586  $6,453 
Service-based stock expense (1)
  692   (1,668)  956 
Stock option expense
  328   669   1,180 
Total share-based compensation expense before income tax
  6,569   4,587   8,589 
Income tax benefit
  -   -   - 
Total share-based compensation expense, net of income tax benefit
 $6,569  $4,587  $8,589 

(1)
We recorded a net credit for service-based stock awards in 2010 due to adjustments to share-based expense for payroll taxes paid in cash during the year.