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Summary of Significant Accounting Policies (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Patterson Companies, Inc. [Member] |  |  |  |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |  |  |  |
Concentration risk percentage | [1] | 40.00% | 39.00% |  | 39.00% |  | 41.00% |
AmerisourceBergen Corporation [Member] |  |  |  |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |  |  |  |
Concentration risk percentage | [2] | 18.00% | 22.00% |  | 20.00% |  | 21.00% |
ANIMART LLC [Member] |  |  |  |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |  |  |  |
Concentration risk percentage | [3] | 11.00% |  | [4] |  | [4] |  | [4]
[1] | During June 2015, Patterson Companies, Inc. (NASDAQ: PDCO) acquired Animal Health International, Inc.
[2] | During March 2015, AmerisourceBergen Corporation (NYSE: ABC) acquired MWI Animal Health.
[3] | Assumes that the acquisition of Animal Medic by ANIMART LLC (which closed during the third quarter of 2016) had occurred as of the beginning of the periods being reported.
[4] | Amount is less than 10%.

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