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Computation of (Loss) Earnings Per Share
6 Months Ended
Jun. 30, 2011
Computation of (Loss) Earnings Per Share [Abstract]  
Computation of (Loss) Earnings Per Share
Note 3. Computation of (Loss) Earnings Per Share
     Basic (loss) earnings per share was computed by dividing net (loss) earnings by the weighted-average number of common shares outstanding, including vested restricted stock awards, during the period. Diluted earnings per share reflects the potential dilution that would occur if net earnings were divided by the weighted-average number of common shares and potentially dilutive common shares from outstanding stock options as well as unvested, time-based restricted stock awards. Potentially dilutive common shares were calculated using the treasury stock method and represent incremental shares issuable upon exercise of the Company’s outstanding stock options and unvested, time-based restricted stock awards. The Company has awarded restricted stock with both time-based as well as performance-based vesting provisions. Stock awards based on only performance conditions are not included in the calculation of basic or diluted earnings per share until the performance criteria are met. For periods in which the Company incurs losses, potentially dilutive shares are not considered in the calculation of net loss per share, as their impact would be anti-dilutive. For periods in which the Company has earnings, out-of-the-money stock options (i.e., the average stock price during the period is below the exercise price of the stock option) are not included in diluted earnings per share as their effect would be anti-dilutive. For the three months ended June 30, 2011 and 2010, and the six months ended June 30, 2011 and 2010, 1.9 million, 2.8 million, 2.0 million, and 2.7 million shares were excluded from the calculation of diluted (loss) earnings per share as their effect was anti-dilutive, respectively.
     The following table reconciles the weighted-average shares used in computing basic and diluted (loss) earnings per share in the respective periods (in thousands):
                                 
    Three months     Six months  
    ended     ended  
    June 30,     June 30,  
    2011     2010     2011     2010  
Shares used in basic (loss) earnings per share (weighted-average common shares outstanding)
    32,900       28,406       32,675       28,457  
Effect of dilutive stock options and restricted stock awards
                435        
 
                       
Shares used in diluted (loss) earnings per share calculation
    32,900       28,406       33,110       28,457