Condensed, Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	[1]	$ 70,424	$ 66,426	$ 122,877	$ 114,148
Other comprehensive income:
Foreign currency translation adjustments		6,175	32	8,556	12,630
Other comprehensive income		6,175	32	8,556	12,630
Total comprehensive income		76,599	66,458	131,433	126,778
Comprehensive income attributable to noncontrolling interests	[1]	2,878	2,446	4,297	4,294
Comprehensive income attributable to VCA Inc.		$ 73,721	$ 64,012	$ 127,136	$ 122,484

[1] Includes approximately $1.8 million and $2.1 million of net income related to redeemable and mandatorily redeemable noncontrolling interests for the six months ended June 30, 2017 and 2016, respectively.