Business Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Identifiable assets	$ 1,701.6		$ 1,701.6		$ 1,770.0
External revenue	1,251.2	$ 1,221.3	3,682.4	$ 3,549.2
Operating income (loss)	40.1	38.8	87.1	109.4
Operating Segments | YRC Freight
Segment Reporting Information [Line Items]
Identifiable assets	1,075.3		1,075.3		1,208.7
External revenue	787.8	777.9	2,306.2	2,228.6
Operating income (loss)	20.3	20.8	37.8	53.3
Operating Segments | Regional Transportation
Segment Reporting Information [Line Items]
Identifiable assets	711.6		711.6		642.9
External revenue	463.5	443.7	1,376.5	1,321.3
Operating income (loss)	21.5	21.9	59.0	64.9
Corporate/ Eliminations
Segment Reporting Information [Line Items]
Identifiable assets	(85.3)		(85.3)		$ (81.6)
External revenue	(0.1)	(0.3)	(0.3)	(0.7)
Operating income (loss)	$ (1.7)	$ (3.9)	$ (9.7)	$ (8.8)