XML 49 R5.htm IDEA: XBRL DOCUMENT v2.4.0.8
Condensed Consolidated Statement of Changes in Stockholders' Equity (Unaudited) (USD $)
In Thousands, unless otherwise specified
Total
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in-Capital [Member]
Retained Earnings [Member]
Balance at Dec. 31, 2012 $ 795,005 $ 925 $ (3,796) $ 657,943 $ 139,933
Balance, shares at Dec. 31, 2012   93,303 129    
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation 8,828 1   8,827  
Stock-based compensation, shares   422      
Treasury stock – tax withholdings 1,424   1,424    
Treasury stock - tax withholdings, shares   (35) 35    
Net income 173,469       173,469
Balance at Sep. 30, 2013 $ 975,878 $ 926 $ (5,220) $ 666,770 $ 313,402
Balance, shares at Sep. 30, 2013   93,690 164