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CONSOLIDATED CONDENSED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) (USD $)
In Thousands, except Share data
Total
Common Stock [Member]
Additional paid-in capital [Member]
Retained earnings [Member]
Treasury stock [Member]
Treasury stock reserved for deferred compensation [Member]
Accumulated other comprehensive income (loss) [Member]
Noncontrolling interest [Member]
Balance, Beginning at Dec. 31, 2010 $ 278,315 $ 30 $ 300,540 $ 16,028 $ (19,324) $ (1,917) $ (17,042) $ 0
Balance, Beginning (in shares) at Dec. 31, 2010   35,366,727            
Comprehensive income (loss):                
Currency translation adjustment 2,932           2,932  
Net income 22,241     22,249       (8)
Pension liability adjustments, net of tax 1,185           1,185  
Unrealized loss on investment, net of tax 13,652           13,652  
Comprehensive income 40,010             (8)
Dividends on common stock (421)     (421)        
Note conversion 73,909 7 73,902          
Note conversion (in shares)   6,617,709            
Exercise of stock options 477   (119)   596      
Exercise of stock options (in shares)   66,375            
Acquisition 3,229   848   452     1,929
Acquisition (in shares)   50,396            
Stock-based compensation 1,384   1,384          
Deferred compensation transactions 1,530   846     684    
Issuance of treasury stock under 401(k) plan 268   164   104      
Issuance of treasury stock under 401(k) plan (in shares)   11,674            
Balance, Ending at Jun. 30, 2011 $ 398,701 $ 37 $ 377,565 $ 37,856 $ (18,172) $ (1,233) $ 727 $ 1,921
Balance, Ending (in shares) at Jun. 30, 2011   42,112,881