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Stockholder's Equity
 3 Months Ended
Mar. 31, 2012
Stockholder's Equity [Abstract]  
Stockholder's Equity
7. Stockholder's Equity

Changes in stockholders' equity for the three months ended March 31, 2012 were as follows (in thousands):

 

Balance at December 31, 2011

    $  183,155   

Net income

      5,450   

Net unrealized gains on available-for-sale securities, net of tax

      (61 ) 

Conversion of Series B preferred shares

      35,217   

Issuance of common stock related to stock transactions

      800   

Taxes paid related to net share settlement of restricted stock units

      (2,028 ) 

Stock-based compensation

      1,924   
  

 

 

  

Balance at March 31, 2012

    $ 224,457   
  

 

 

  

Treasury Stock

During the three months ended March 31, 2012, the Company did not repurchase any common shares under the Company's share repurchase program. During the three months ended March 31, 2011, the Company repurchased 50,000 common shares at a weighted-average price of $56.29 under the Company's share repurchase program. The total cost of treasury shares acquired during the three months ended March 31, 2011 was approximately $2.8 million. At March 31, 2012, there were 195,000 shares of common stock remaining authorized for repurchase under the share repurchase program.