Business Segments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
External revenue	$ 4,697.5	$ 4,832.4	$ 5,068.8
Operating income (loss)	124.3	93.0	45.5
Identifiable assets	1,770.0	1,879.4	1,965.1
Acquisition of property and equipment	(100.6)	(108.0)	(69.2)
Proceeds from disposal of property and equipment	35.1	17.5	20.8
Depreciation and amortization	159.8	163.7	163.6
YRC Freight
Segment Reporting Information [Line Items]
External revenue	2,958.9	3,055.7	3,237.4
Operating income (loss)	53.2	18.0	0.5
Identifiable assets	1,208.7	1,351.5	1,462.1
Acquisition of property and equipment	(73.2)	(59.2)	(37.0)
Proceeds from disposal of property and equipment	31.3	12.0	23.2
Depreciation and amortization	90.3	93.1	98.0
Regional Transportation
Segment Reporting Information [Line Items]
External revenue	1,739.3	1,776.9	1,831.4
Operating income (loss)	81.3	85.4	66.1
Identifiable assets	642.9	652.9	685.7
Acquisition of property and equipment	(27.4)	(48.7)	(32.2)
Proceeds from disposal of property and equipment	3.8	5.5	(2.4)
Depreciation and amortization	69.5	70.7	65.8
Corporate/Eliminations
Segment Reporting Information [Line Items]
External revenue	(0.7)	(0.2)	0.0
Operating income (loss)	(10.2)	(10.4)	(21.1)
Identifiable assets	(81.6)	(125.0)	(182.7)
Acquisition of property and equipment	0.0	(0.1)	0.0
Proceeds from disposal of property and equipment	0.0	0.0	0.0
Depreciation and amortization	0.0	(0.1)	(0.2)
Foreign Countries
Segment Reporting Information [Line Items]
Revenues	101.0	116.5	137.5
Long-lived assets located in foreign countries	$ 5.2	$ 6.5	$ 8.7