Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net income (loss)	$ 157,991	$ 159,074	$ 73,418	$ 433,490
Other comprehensive income (loss), before tax:
Foreign currency translation adjustment	45,886	(24,911)	(55,738)	60,404
Other comprehensive income (loss), before tax	50,625	(42,367)	(119,190)	(3,332)
Income tax (expense) benefit related to items of other comprehensive income (loss)	(1,256)	4,626	16,815	16,890
Other comprehensive income (loss), net of tax	49,369	(37,741)	(102,375)	13,558
Comprehensive income	207,360	121,333	(28,957)	447,048
Plus (less): Comprehensive loss (income) attributable to noncontrolling interests	58	35	594	89
Comprehensive income attributable to Waste Connections	207,418	121,368	(28,363)	447,137
Interest Rate Swap [Member]
Other comprehensive income (loss), before tax:
Amounts reclassified, gross	2,893	(1,974)	4,595	(6,918)
Change in fair value, gross	$ 1,846	$ (15,482)	$ (68,047)	$ (56,818)