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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Changes in Operations Europe - ERS (Details) - ERS Railways [Member] - U.K./European Operations [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Jun. 30, 2017	Mar. 31, 2017
Asset Impairment Charges	$ 21.5
Goodwill, Impairment Loss	(14.5)
Restructuring and Related Cost, Cost Incurred to Date			$ 3.1
Customer Relationships [Member]
Impairment of Intangible Assets, Finite-lived	$ 4.1
Scenario, Forecast [Member]
Restructuring and Related Cost, Expected Cost		$ 1.0