Nature of Operations (Details)	3 Months Ended
	Mar. 31, 2015 reportable_segment segment province Laboratory Hospital State
Nature of Operations (Textuals) [Abstract]
Number of operating segments	5
Number of reportable segments	2
Number of hospitals operated	650
Number of states in which hospitals are operated	41
Number Of Canadian Provinces	4
Number of states in which the company operate a full-service veterinary diagnostic laboratory network	50
Number of laboratories operated	59
Camp Bow Wow [Member]
Nature of Operations (Textuals) [Abstract]
Number of dog boarding and day care service locations operated (more than)	129
Number of states in which the entity operates	36
Number of Canadian Provinces in which entity operates	1