Net Income Per Share Information (Tables)

12 Months Ended

Dec. 31, 2014

Net Income Per Share Information [Abstract]

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 years ended December 31, 2014, 2013 and 2012: 

	Years Ended December 31,
	2014		2013		2012
Numerator:
Net income attributable to Waste Connections for basic and diluted earnings per share	$	232,525	$	195,655	$	159,093
Denominator:
Basic shares outstanding		124,215,346		123,597,540		121,172,381
Dilutive effect of stock options and warrants		90,334		186,006		308,681
Dilutive effect of restricted stock units		481,741		381,506		343,287
Diluted shares outstanding		124,787,421		124,165,052		121,824,349