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Stock-Based Compensation
9 Months Ended
Sep. 30, 2011
Stock-Based Compensation [Abstract] 
Stock-Based Compensation
14.   Stock-Based Compensation
 
    We recognize the cost of employee services received in exchange for awards of equity instruments based on the grant date fair value of those awards. The table below sets forth the total amount of stock-based compensation expense for the three and nine months ended September 30, 2011 and 2010.
                                 
    Three Months Ended     Nine Months Ended  
    September 30     September 30  
    2011     2010     2011     2010  
    (In thousands)  
Stock-based compensation expense
                               
Stock options
  $ 64     $ 198     $ 329     $ 423  
Time-based restricted stock
    831       1,012       2,390       5,355  
Performance shares and units
    508       (34 )     1,230       881  
 
                           
 
                       
Total stock-based compensation expense
  $ 1,403     $ 1,176     $ 3,949     $ 6,659  
 
                       
    The table below sets forth the number of shares that vested during the three and nine months ended September 30, 2011 and 2010.
                                 
    Three Months Ended     Nine Months Ended  
    September 30     September 30  
    2011     2010     2011     2010  
Restricted shares
    35,800       109,500       272,067       345,792  
Stock awards with immediate vesting granted to managerial employees
                32,500       403,700  
Stock awards with immediate vesting granted to our directors pursuant to the Non-Employee Director Compensation Policy
    53,328       45,729       121,341       107,969  
 
                       
Total shares
    89,128       155,229       425,908       857,461