Intangibles (Indefinite Lived) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Indefinite-lived Intangible Assets [Roll Forward]
Balance	$ 27.2	$ 26.9	$ 28.5
Change in foreign currency exchange rates	0.6	0.3	(1.6)
Balance	27.8	27.2	26.9
YRC Freight
Indefinite-lived Intangible Assets [Roll Forward]
Balance	8.5	8.2	9.8
Change in foreign currency exchange rates	0.6	0.3	(1.6)
Balance	9.1	8.5	8.2
Regional Transportation
Indefinite-lived Intangible Assets [Roll Forward]
Balance	18.7	18.7	18.7
Change in foreign currency exchange rates	0.0	0.0	0.0
Balance	$ 18.7	$ 18.7	$ 18.7