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Condensed Consolidated Statement of Stockholders' Equity (Unaudited) (USD $)
In Thousands, except Share data
Total
Common Stock Shares
Non-Redeemable Preferred Stock
Capital in Excess of Par Value
Retained Earnings
Treasury Stock - Common
Beginning balance at Dec. 31, 2011 $ 293,270 $ 2,664 $ 3,000 $ 162,092 $ 153,888 $ (28,374)
Beginning balance, shares at Dec. 31, 2011   26,638,000        
Net income 40,336       40,336  
Dividends paid on preferred stocks (300)       (300)  
Stock-based compensation 829     829    
Exercise of stock options 333 4   329    
Exercise of stock options, shares   39,000        
Excess income tax benefit associated with stock-based compensation 223     223    
Conversion of redeemable preferred stock to common stock 6     6    
Conversion of redeemable preferred stock to common stock, shares   3,000        
Ending balance at Jun. 30, 2012 $ 334,697 $ 2,668 $ 3,000 $ 163,479 $ 193,924 $ (28,374)
Ending balance, shares at Jun. 30, 2012   26,680,000