Net Income Per Share Information (Tables)

9 Months Ended

Sep. 30, 2013

Basic and Diluted Net Income Per Common Share

The following table sets forth the calculation of the numerator and denominator used in the computation of basic and diluted net income per common share attributable to the Company’s common stockholders for the three and nine months ended September 30, 2013 and 2012:

	Three months ended September 30,				Nine months ended September 30,
	2013		2012		2013		2012
Numerator:
Net income attributable to Waste Connections for basic and diluted earnings per share	$	60,706	$	49,385	$	146,229	$	123,104
Denominator:
Basic shares outstanding		123,676,936		123,031,259		123,557,317		120,571,106
Dilutive effect of stock options and warrants		182,175		303,293		192,054		319,457
Dilutive effect of restricted stock units		420,555		331,037		340,051		308,338
Diluted shares outstanding		124,279,666		123,665,589		124,089,422		121,198,901