Business Description and Basis of Presentation

12 Months Ended

Sep. 30, 2013

Business Description and Basis of Presentation [Abstract]

Business Description and Basis of Presentation

1. Business Description and Basis of Presentation

      MWI Veterinary Supply, Inc. is a leading distributor of animal health products to veterinarians in the United States and United Kingdom. We sell our products primarily to veterinarians in both the companion and production animal markets. As of September 30, 2013, we operated thirteen distribution centers located across the United States and one distribution center in the United Kingdom.