Calculation of Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

Calculation of Basic and Diluted Earnings per Share

Basic and diluted earnings per share were calculated as follows (in thousands, except per share amounts):

	Three Months Ended June 30,				Six Months Ended June 30,
	2014		2013		2014		2013
Net income attributable to VCA Inc.	$	45,584	$	41,662	$	79,627	$	72,147
Weighted-average common shares outstanding:
Basic	88,041		88,509		88,188		88,455
Effect of dilutive potential common shares:
Stock options	265		321		260		298
Nonvested shares and units	885		823		864		778
Diluted	89,191		89,653		89,312		89,531
Basic earnings per share	$	0.52	$	0.47	$	0.90	$	0.82
Diluted earnings per share	$	0.51	$	0.46	$	0.89	$	0.81