Condensed Consolidated Statements of Net Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Revenues	$ 1,879,868	$ 1,597,168	$ 5,342,558	$ 4,527,042
Operating expenses:
Cost of operations	1,120,629	946,098	3,198,039	2,673,209
Selling, general and administrative	186,887	155,520	518,705	454,885
Depreciation	193,287	171,965	562,174	498,588
Amortization of intangibles	38,859	35,337	113,956	100,237
Impairments and other operating items	13,438	3,104	19,467	9,819
Operating income	326,768	285,144	930,217	790,304
Interest expense	(51,161)	(40,418)	(137,565)	(124,171)
Interest income	1,784	495	2,574	2,342
Other income (expense), net	8,487	3,140	2,373	5,452
Loss on early extinguishment of debt	0	(115,288)	0	(115,288)
Income before income tax provision	285,878	133,073	797,599	558,639
Income tax provision	(48,753)	(18,419)	(155,899)	(106,578)
Net income	237,125	114,654	641,700	452,061
Plus (less): Net loss (income) attributable to noncontrolling interests	(213)	(273)	(390)	(325)
Net income attributable to Waste Connections	$ 236,912	$ 114,381	$ 641,310	$ 451,736
Earnings per common share attributable to Waste Connections' common shareholders:
Basic	$ 0.92	$ 0.44	$ 2.49	$ 1.73
Diluted	$ 0.92	$ 0.44	$ 2.49	$ 1.72
Shares used in the per share calculations:
Basic	257,197,010	260,550,774	257,438,756	261,372,827
Diluted	257,891,635	261,145,220	258,060,751	261,879,754
Cash dividends per common share	$ 0.230	$ 0.205	$ 0.690	$ 0.615