Condensed Consolidated Statements of Net Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues	$ 503,646	$ 425,654	$ 1,442,918	$ 1,212,815
Operating expenses:
Cost of operations	274,141	243,243	794,588	698,351
Selling, general and administrative	53,536	47,977	159,690	143,899
Depreciation	55,863	42,313	162,277	119,331
Amortization of intangibles	6,211	6,267	18,861	18,115
Loss (gain) on disposal of assets	(1,129)	244	1,993	715
Gain from litigation settlement		(3,537)		(3,537)
Loss (gain) on prior office leases	(596)		9,902
Operating income	115,620	89,147	295,607	235,941
Interest expense	(17,911)	(11,949)	(55,851)	(36,063)
Other income (expense), net	845	825	(119)	1,663
Income before income tax provision	98,554	78,023	239,637	201,541
Income tax provision	(37,641)	(28,403)	(93,049)	(77,967)
Net income	60,913	49,620	146,588	123,574
Less: Net income attributable to noncontrolling interests	(207)	(235)	(359)	(470)
Net income attributable to Waste Connections	$ 60,706	$ 49,385	$ 146,229	$ 123,104
Earnings per common share attributable to Waste Connections' common stockholders:
Basic	$ 0.49	$ 0.40	$ 1.18	$ 1.02
Diluted	$ 0.49	$ 0.40	$ 1.18	$ 1.02
Shares used in the per share calculations:
Basic	123,676,936	123,031,259	123,557,317	120,571,106
Diluted	124,279,666	123,665,589	124,089,422	121,198,901
Cash dividends per common share	$ 0.10	$ 0.09	$ 0.30	$ 0.27