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SEGMENT AND SIGNIFICANT CUSTOMER INFORMATION (Details)
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Animal Health International, Inc [Member]
        
Revenue, Major Customer [Line Items]        
Total product sales 27.00% [1] 38.00% [2] 35.00% [1] 40.00% [2]
Mwi Veterinary Supply Company [Member]
        
Revenue, Major Customer [Line Items]        
Total product sales 11.00% [1] 12.00% [2] 13.00% [1] 13.00% [2]
[1] Assumes that the June 2011 acquisition of Animal Health International by Lextron had occurred as of the beginning of the periods being reported.
[2] Assumes that the March 2011 acquisition of Nelson Laboratories and the October 2011 acquisition of Micro Beef Technologies by MWI had occurred as of the beginning of the periods being reported.