Business Segments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
External revenue	$ 4,832.4	$ 5,068.8	$ 4,865.4
Operating income (loss)	93.0	45.5	28.4
Identifiable assets	1,894.6	1,985.0	2,064.9
Acquisition of property and equipment	(108.0)	(69.2)	(66.9)
Proceeds from disposal of property and equipment	17.5	20.8	9.8
Depreciation and amortization	163.7	163.6	172.3
YRC Freight
Segment Reporting Information [Line Items]
External revenue	3,055.7	3,237.4	3,136.8
Operating income (loss)	18.0	0.5	(31.2)
Identifiable assets	1,351.5	1,462.1	1,513.4
Acquisition of property and equipment	(59.2)	(37.0)	(43.4)
Proceeds from disposal of property and equipment	12.0	23.2	6.7
Depreciation and amortization	93.1	98.0	109.1
Regional Transportation
Segment Reporting Information [Line Items]
External revenue	1,776.9	1,831.4	1,728.6
Operating income (loss)	85.4	66.1	79.9
Identifiable assets	652.9	685.7	698.4
Acquisition of property and equipment	(48.7)	(32.2)	(23.3)
Proceeds from disposal of property and equipment	5.5	(2.4)	3.0
Depreciation and amortization	70.7	65.8	63.1
Corporate/Eliminations
Segment Reporting Information [Line Items]
External revenue	(0.2)	0.0	0.0
Operating income (loss)	(10.4)	(21.1)	(20.3)
Identifiable assets	(109.8)	(162.8)	(146.9)
Acquisition of property and equipment	(0.1)	0.0	(0.2)
Proceeds from disposal of property and equipment	0.0	0.0	0.1
Depreciation and amortization	(0.1)	(0.2)	0.1
Foreign Countries
Segment Reporting Information [Line Items]
Revenues	116.5	137.5	139.5
Long-lived assets located in foreign countries	$ 6.5	$ 8.7	$ 12.4