Changes in Operations U.K/Europe ERS Intermodal Business & UK Coal (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2017
Goodwill, Impairment Loss	$ 14,482
ERS Railways [Member]
Goodwill, Impairment Loss	14,500
ERS Railways [Member] \| U.K./European Operations [Member]
Asset Impairment Charges	21,500
Goodwill, Impairment Loss	14,482
ERS Railways [Member] \| U.K./European Operations [Member] \| Customer contracts and relationships [Member]
Impairment of Intangible Assets, Finite-lived	4,100
ERS Railways [Member] \| U.K./European Operations [Member] \| Scenario, Forecast [Member] \| Minimum [Member]
Restructuring and Related Cost, Expected Cost		$ 3,000
ERS Railways [Member] \| U.K./European Operations [Member] \| Scenario, Forecast [Member] \| Maximum [Member]
Restructuring and Related Cost, Expected Cost		$ 4,000
U.K Coal [Member] \| U.K./European Operations [Member]
Asset Impairment Charges	14,700
Charges associated with write off of leased railcars	10,500
Restructuring Costs	$ 4,200

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount expected to be recognized in earnings for the specified restructuring cost.

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