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Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net income	$ 15,020	$ 45,017
Other comprehensive income (loss), before tax:
Foreign currency translation adjustment	17,434
Other comprehensive income (loss), before tax	17,282	(4,482)
Income tax (expense) benefit related to items of other comprehensive income (loss)	304	1,706
Other comprehensive income (loss), net of tax	17,586	(2,776)
Comprehensive income	32,606	42,241
Less: Comprehensive income attributable to noncontrolling interests	(146)	(175)
Comprehensive income attributable to Waste Connections	32,460	42,066
Interest Rate Swap [Member]
Other comprehensive income (loss), before tax:
Amounts reclassified, gross	1,081	1,711
Changes in fair value, gross	1,027	(6,689)
Fuel [Member] | Commodity Contract [Member]
Other comprehensive income (loss), before tax:
Amounts reclassified, gross	964	1,801
Changes in fair value, gross	$ (3,224)	$ (1,305)

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