Condensed, Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Per Share data	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Allowance for uncollectible accounts	$ 14,661	$ 13,801
Liabilities and Equity
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	11,000	11,000
Preferred stock, shares outstanding
VCA Antech, Inc. stockholders' equity:
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	175,000	175,000
Common stock, shares outstanding	86,662	86,179