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Equity Method Investments
9 Months Ended
Sep. 30, 2011
Equity Method Investments [Abstract] 
Equity Method Investments
9. Equity Method Investments
     As of September 30, 2011, we had investments in eight joint ventures (one located in each of Japan, Saudi Arabia, South Korea, and the United Arab Emirates and two located in each of China and India) that were accounted for using the equity method. Summarized below is combined income statement information, based on the most recent financial information (unaudited), for those investments:
                 
      Three Months Ended September 30,  
(Amounts in thousands)   2011   2010
Revenues
  $ 91,832     $ 60,597  
Gross profit
    21,356       17,561  
Income before provision for income taxes
    14,772       12,494  
Provision for income taxes
    (4,189 )     (3,570 )
 
       
Net income
  $ 10,583     $ 8,924  
 
       
 
      Nine Months Ended September 30,    
(Amounts in thousands)   2011   2010
Revenues
  $ 243,688     $ 174,517  
Gross profit
    68,966       57,819  
Income before provision for income taxes
    47,607       42,237  
Provision for income taxes
    (14,237 )     (11,524 )
 
       
Net income
  $ 33,370     $ 30,713  
 
       
     The provision for income taxes is based on the tax laws and rates in the countries in which our investees operate. The tax jurisdictions vary not only by their nominal rates, but also by the allowability of deductions, credits and other benefits. Our share of net income is reflected in our condensed consolidated statements of income.