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Provision for income taxes (Tables)
9 Months Ended
Sep. 30, 2012
Provision for income taxes
     Nine months ended
September 30,
 
     2011     2012  
     (In thousands)  

Expected tax expense, at the U.S. federal statutory income tax rate of 35%

   $ 4,600      $ 3,766   

Non–U.S. tax rates

     (899     (742

Incremental tax on earnings of non-U.S. companies

     2,694        1,478   

U.S. State income taxes, net

     366        388   

Non-taxable income

     —          (195

Other, net

     (324     (160
  

 

 

   

 

 

 

Total income tax expense

   $ 6,437      $ 4,535