Net Income Per Share Information

6 Months Ended

Jun. 30, 2012

Net Income Per Share Information [Abstract]

NET INCOME PER SHARE INFORMATION

10. NET INCOME PER SHARE INFORMATION

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 six months ended June 30, 2012 and 2011:

	Three months ended June 30,				Six months ended June 30,
	2012		2011		2012		2011
Numerator:
Net income attributable to Waste Connections for basic and diluted earnings per share	$	42,415	$	44,413	$	73,719	$	80,952
Denominator:
Basic shares outstanding		123,466,890		113,509,668		119,327,512		113,514,439
Dilutive effect of stock options and warrants		315,329		451,173		327,538		463,899
Dilutive effect of restricted stock units		245,398		347,869		296,989		376,641
Diluted shares outstanding		124,027,617		114,308,710		119,952,039		114,354,979

For the three months ended June 30, 2012 and 2011, stock options and warrants to purchase 72,324 and 1,266 shares of common stock, respectively, were excluded from the computation of diluted earnings per share as they were anti-dilutive. For the six months ended June 30, 2012 and 2011, stock options and warrants to purchase 72,324 and 1,266 shares of common stock, respectively, were excluded from the computation of diluted earnings per share as they were anti-dilutive.