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Income Tax (Tables)
6 Months Ended
Jun. 30, 2012
Income Tax [Abstract]  
Schedule Of Income Tax Reconciliation Items
    Three Months Ended     Six Months Ended  
    June 30,     June 30,  
    2012     2011     2012     2011  
Expected tax provision (benefit) $ 174   $ 1,510   $ 659   $ 729  
Increase (reduction) in tax expense resulting from:                        
Change in valuation allowance, other   (241 )   (15,709 )   (668 )   (14,799 )
Foreign income tax provision   (414 )   195     490     295  
Foreign withholding tax provision   273     111     640     214  
Tax effect of foreign tax rates on current                        
income   67     (152 )   8     (281 )
State and local tax provision   158     109     272     234  
Federal tax litigation settlement   242     162     483     470  
Actual tax provision (benefit) $ 259   $ (13,774 ) $ 1,884   $ (13,138 )
Summary Of The Activity Related To Unrecognized Tax Benefits
    Six Months            
    Ended   Year Ended     Year Ended  
    June 30,   December 31,     December 31,  
    2012   2011     2010  
Unrecognized tax benefits – gross beginning                
balance $ 1,974 $ 8,058   $ 11,412  
Gross increases – current period tax positions   94   151     405  
Settlements   -   (6,235 )   (3,189 )
Statute of limitations lapse   -   -     (570 )
Unrecognized tax benefits – gross ending balance $ 2,068 $ 1,974   $ 8,058