v2.4.0.6
Condensed Consolidated Statements of Changes in Shareholders' Equity (USD $)
In Thousands, except Share data, unless otherwise specified
Total
USD ($)
Preferred Stock
Common Stock
USD ($)
Additional Paid-In Capital
USD ($)
Retained Earnings
USD ($)
Accumulated Other Comprehensive Income
USD ($)
Balance at Dec. 31, 2011 $ 1,971,631   $ 756 $ 1,385,355 $ 583,202 $ 2,318
Balance (in shares) at Dec. 31, 2011   12,275 76,213,126      
Increase (Decrease) in Shareholders' Equity            
Stock option activity, including tax benefit of $2,717 and $1,126 for three months ended March 31, 2013 and 2012, respectively 12,921   2 12,919    
Stock option activity, including tax benefit of $2,717 and $1,126 for three months ended March 31, 2013 and 2012, respectively (in shares)     214,632      
Restricted stock activity, including tax benefit of $749 and $353 for the three months ended March 31, 2013 and 2012, respectively 1,109     1,109    
Restricted stock activity, including tax benefit of $749 and $353 for the three months ended March 31, 2013 and 2012, respectively (in shares)     (4,076)      
Change in fair value of corporate debt securities (70)         (70)
Foreign currency translation adjustment 288         288
Net income 78,619       78,619  
Balance at Mar. 31, 2012 2,064,498   758 1,399,383 661,821 2,536
Balance (in shares) at Mar. 31, 2012   12,275 76,423,682      
Balance at Dec. 31, 2012 2,250,929   769 1,451,965 795,173 3,022
Balance (in shares) at Dec. 31, 2012   12,275 77,446,601      
Increase (Decrease) in Shareholders' Equity            
Repurchase of preferred stock (22,275)     (22,275)    
Repurchase of preferred stock (in shares)   (225)        
Stock option activity, including tax benefit of $2,717 and $1,126 for three months ended March 31, 2013 and 2012, respectively 24,737   5 24,732    
Stock option activity, including tax benefit of $2,717 and $1,126 for three months ended March 31, 2013 and 2012, respectively (in shares)     540,567      
Restricted stock activity, including tax benefit of $749 and $353 for the three months ended March 31, 2013 and 2012, respectively 442     442    
Restricted stock activity, including tax benefit of $749 and $353 for the three months ended March 31, 2013 and 2012, respectively (in shares)     188,013      
Change in fair value of corporate debt securities (99)         (99)
Foreign currency translation adjustment (391)         (391)
Net income 65,271       65,271  
Balance at Mar. 31, 2013 $ 2,318,614   $ 774 $ 1,454,864 $ 860,444 $ 2,532
Balance (in shares) at Mar. 31, 2013   12,050 78,175,181