Condensed Consolidated Statements of Net Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenues	$ 449,892	$ 376,430
Operating expenses:
Cost of operations	251,963	216,681
Selling, general and administrative	53,251	51,174
Depreciation	51,649	37,173
Amortization of intangibles	6,438	5,631
Loss (gain) on disposal of assets	(322)	715
Operating income	86,913	65,056
Interest expense	(19,012)	(12,285)
Other income, net	742	819
Income before income tax provision	68,643	53,590
Income tax provision	(26,963)	(22,151)
Net income	41,680	31,439
Less: Net income attributable to noncontrolling interests	(124)	(136)
Net income attributable to Waste Connections	$ 41,556	$ 31,303
Earnings per common share attributable to Waste Connections' common stockholders:
Basic	$ 0.34	$ 0.27
Diluted	$ 0.34	$ 0.27
Shares used in the per share calculations:
Basic	123,380,799	115,188,134
Diluted	123,904,929	115,876,461
Cash dividends per common share	$ 0.10	$ 0.09