Business Segments (Details) $ in Millions	3 Months Ended
Mar. 31, 2019 USD ($) segment	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	2
Identifiable assets	$ 1,928.8		$ 1,617.1
External revenue	1,182.3	$ 1,214.5
Operating income (loss)	(31.7)	(4.3)
Operating Segments \| YRC Freight
Segment Reporting Information [Line Items]
Identifiable assets	1,279.6		973.6
External revenue	743.8	751.3
Operating income (loss)	(21.1)	(6.9)
Operating Segments \| Regional Transportation
Segment Reporting Information [Line Items]
Identifiable assets	731.4		626.4
External revenue	438.6	463.3
Operating income (loss)	(7.0)	5.2
Corporate/ Eliminations
Segment Reporting Information [Line Items]
Identifiable assets	(82.2)		$ 17.1
External revenue	(0.1)	(0.1)
Operating income (loss)	$ (3.6)	$ (2.6)

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(12))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(11))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(d))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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