SEGMENT AND SIGNIFICANT CUSTOMER INFORMATION (Details)	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Animal Health International, Inc [Member]
Total product sales	40.00%		35.00%		38.00%		35.00%
MWI Veterinary Supply Company [Member]
Total product sales	16.00%	[1]	17.00%	[1]	15.00%	[1]	14.00%	[1]

[1] Assuming that the acquisition of IVESCO by MWI Veterinary Supply Company (which closed as of November 1, 2013) had closed as of the beginning of the periods being reported, these figures would be 21% and 22% for three-month periods ended September 30, 2013 and 2012, respectively, and 22% and 20% for the nine-month periods ended September 30, 2013 and 2012, respectively.