Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2011

Selected Quarterly Financial Data [Abstract]

SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

18. SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

The following table summarizes the unaudited consolidated quarterly results of operations for 2011:

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Revenues	$	331,468	$	390,184	$	403,962	$	379,752
Operating income		68,575		84,798		89,314		74,374
Net income		36,793		44,605		46,584		38,189
Net income attributable to Waste Connections		36,539		44,413		46,329		37,958
Basic income per common share attributable to Waste Connections’ common stockholders		0.32		0.39		0.41		0.34
Diluted income per common share attributable to Waste Connections’ common stockholders		0.32		0.39		0.41		0.34

The following table summarizes the unaudited consolidated quarterly results of operations for 2010:

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Revenues	$	307,540	$	330,477	$	345,785	$	335,955
Operating income		59,606		69,351		75,685		67,742
Net income		27,814		30,637		41,257		36,435
Net income attributable to Waste Connections		27,574		30,400		40,986		36,145
Basic income per common share attributable to Waste Connections’ common stockholders		0.24		0.26		0.35		0.32
Diluted income per common share attributable to Waste Connections’ common stockholders		0.23		0.26		0.35		0.31

On April 1, 2010, the Company redeemed the $200,000 aggregate principal amount of the 2026 Notes and, as a result of the redemption, recognized $9,734 of pre-tax expense ($6,035 net of taxes) to Loss on extinguishment of debt.