Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 308,046	$ 229,191	$ 812,574	$ 636,197
Other comprehensive income (loss), before tax:
Interest rate swap amounts reclassified into interest expense	(5,432)	(5,286)	(16,237)	(14,120)
Changes in fair value of interest rate swaps	(8,946)	7,788	4,846	20,979
Foreign currency translation adjustment	32,273	(50,020)	(46,752)	2,527
Other comprehensive income (loss), before tax	17,895	(47,518)	(58,143)	9,386
Income tax expense (benefit) related to items of other comprehensive income (loss)	3,810	(663)	3,019	(1,818)
Other comprehensive income (loss), Net of Tax	21,705	(48,181)	(55,124)	7,568
Comprehensive income	329,751	181,010	757,450	643,765
Plus: Comprehensive loss attributable to noncontrolling interests	0	(165)	1,003	(150)
Comprehensive income attributable to Waste Connections	$ 329,751	$ 180,845	$ 758,453	$ 643,615