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Equity Investments (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended	12 Months Ended
Equity Investments (Details) - USD ($) $ in Millions	Jan. 02, 2013	Apr. 30, 2015	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2019	Apr. 13, 2015
Schedule of Equity Method Investments [Line Items]
Impairment on extinguishment			$ 1.8
Dylka Distribuciones Logisti K [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest, as a percent			30.00%	30.00%
Dylka Distribuciones Logisti K [Member] \| Management Of Dylka [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest, as a percent			70.00%	70.00%
Dylka Distribuciones Logisti K and XPS Logisti-K Systems [Member] \| Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Working capital loan			$ 5.0	$ 5.0
Outstanding balance			4.9	4.9
Drivertech, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest, as a percent					20.73%
Investment carrying value			$ 0.0	$ 0.0	$ 0.0
Drivertech, LLC [Member] \| Management Of US Xpress [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest, as a percent					12.00%
Drivertech, LLC [Member] \| Unspecified Investors [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest, as a percent					67.27%
XPS Logisti-K Systems [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest, as a percent			38.00%	38.00%
XPS Logisti-K Systems [Member] \| Management Of Logisti-K [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest, as a percent			62.00%	62.00%
XPS Logisti-K Systems [Member] \| Management Of Dylka [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest, as a percent			42.00%	42.00%
Parker Global Enterprises, Inc. [Member]
Schedule of Equity Method Investments [Line Items]
Investment carrying value			$ 0.0	$ 0.0	$ 0.0
Stock ownership received, as a percent	45.00%
Value of stock received	$ 10.4
Xpress Global Systems [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest, as a percent			10.00%	10.00%
Investment carrying value						$ 5.2
Impairment on extinguishment				$ 0.9
Xpress Global Systems [Member] \| Common Stock [Member]
Schedule of Equity Method Investments [Line Items]
Stock ownership received, as a percent		10.00%
Value of stock received		$ 0.2
Xpress Global Systems [Member] \| Preferred Stock [Member]
Schedule of Equity Method Investments [Line Items]
Value of stock received		$ 5.0