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CONSOLIDATED CONDENSED STATEMENT OF CHANGES IN EQUITY (UNAUDITED) (USD $)
In Thousands, except Share data
Total
Common Stock [Member]
Additional paid-in capital [Member]
Retained earnings [Member]
Treasury stock [Member]
Treasury stock reserved for deferred compensation [Member]
Accumulated other comprehensive income (loss) [Member]
Noncontrolling interest [Member]
Balance, Beginning at Dec. 31, 2010$ 272,031$ 30$ 300,540$ 9,744$ (19,324)$ (1,917)$ (17,042)$ 0
Balance, Beginning (in shares) at Dec. 31, 2010 35,366,727      
Comprehensive income:        
Net income44,045  43,691   354
Currency translation adjustment(9,929)     (9,929) 
Pension liability adjustments, net of tax1,779     1,779 
Unrealized gain on investments, net of tax2,219     2,219 
Comprehensive income38,114      354
Dividends on common stock(632)  (632)    
Note conversion73,909773,902     
Note conversion (in shares) 6,617,709      
Exercise of stock options477 (119) 596   
Exercise of stock options (in shares) 66,375      
Acquisitions4,764 1,708 1,127  1,929
Acquisitions (in shares) 125,524      
Stock-based compensation1,748 1,748     
Deferred compensation transactions1,530 846  684  
Issuance of treasury stock under 401(k) plan411 256 155   
Issuance of treasury stock under 401(k) plan (in shares) 17,358      
Balance, Ending at Sep. 30, 2011$ 392,352$ 37$ 378,881$ 52,803$ (17,446)$ (1,233)$ (22,973)$ 2,283
Balance, Ending (in shares) at Sep. 30, 2011 42,193,693