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Comprehensive Income
9 Months Ended
Sep. 30, 2011
Comprehensive Income [Abstract] 
Comprehensive Income

NOTE 12.     COMPREHENSIVE INCOME

The following is a summary of comprehensive income for the three and nine months ended September 30, 2011 and 2010 (in thousands):

   
For the Three Months Ended
September 30,
    
For the Nine Months Ended
September 30,
  
     
2011
      
2010
      
2011
      
2010
  
                                 
Net income
  
$
38,496
    
$
34,715
    
$
123,756
    
$
104,940
  
Less: Net (loss) income attributable to noncontrolling interest
    
(11
)
    
21
      
(20
)
    
27
  
Net income attributable to IDEXX Laboratories, Inc. stockholders
    
38,507
      
34,694
      
123,776
      
104,913
  
Other comprehensive income attributable to IDEXX Laboratories, Inc. stockholders:
                                
Foreign currency translation adjustments
    
(12,780
)
    
14,113
      
799
      
1,226
  
Change in fair value of foreign currency contracts classified as hedges, net of tax
    
5,324
      
(5,655
)
    
4,348
      
640
  
Change in fair value of interest rate swaps classified as hedges, net of tax
    
(57
)
    
(83
)
    
296
      
(856
)
Change in fair value of investments, net of tax
    
(246
)
    
130
      
(201
)
    
78
  
Comprehensive income attributable to IDEXX Laboratories, Inc. stockholders
  
$
30,748
    
$
43,199
    
$
129,018
    
$
106,001