Legal Proceedings and Other Contingencies (Details) - Viareggio [Member] $ in Millions	6 Months Ended
	Jun. 30, 2015 USD ($) case	Oct. 02, 2013 Insurance_Provider	Dec. 14, 2012 Employee Corporations	Jun. 29, 2009 Car
Loss Contingencies [Line Items]
Number of casualties				32
Number of subsidiaries			2
Number of Maintenance and Supervisory employees | Employee			10.0
Number of Italian railway companies | Corporations			4
Number of employees			18
Loss Contingency, Pending Claims, Number	90
Number of insurers | Insurance_Provider		3
Court Proceedings | case	1
Legal Fees | $	$ 9.6
Percentage of coverage held by Liberty Mutual Insurance Europe Limited		25.00%
Derailed [Member]
Loss Contingencies [Line Items]
number of railcars				14
Overturned [Member]
Loss Contingencies [Line Items]
number of railcars				5
Punctured and Ignited [Member]
Loss Contingencies [Line Items]
number of railcars				1