Calculation of Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2017

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,
	2017		2016		2017		2016
Net income attributable to VCA Inc.	$	67,712	$	64,050	$	118,805	$	110,277
Weighted-average common shares outstanding:
Basic	81,267		80,835		81,256		80,806
Effect of dilutive potential common shares:
Stock options	361		295		361		294
Non-vested shares and units	600		599		587		530
Diluted	82,228		81,729		82,204		81,630
Basic earnings per common share	$	0.83	$	0.79	$	1.46	$	1.36
Diluted earnings per common share	$	0.82	$	0.78	$	1.45	$	1.35