Condensed, Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	[1]	$ 56,468	$ 28,951	$ 151,944	$ 110,774
Other comprehensive income:
Foreign currency translation adjustments		(14,005)	(6,207)	(25,274)	(6,919)
Other comprehensive loss		(14,005)	(6,207)	(25,274)	(6,919)
Total comprehensive income		42,463	22,744	126,670	103,855
Comprehensive income attributable to noncontrolling interests	[1]	1,187	1,021	3,728	3,167
Comprehensive income attributable to VCA Inc.		$ 41,276	$ 21,723	$ 122,942	$ 100,688

[1] Includes approximately $2.5 million and $1.9 million of net income related to redeemable and mandatorily redeemable noncontrolling interests for the nine months ended September 30, 2015 and 2014, respectively.