Administrative and judicial proceedings at sites.

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Number of railcars

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred and costs incurred in the claim settlement process.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs.

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The number of claims settled and dismissed during the period.

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The total number of new claims filed pertaining to a loss contingency during the period.

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Number of pending claims pertaining to a loss contingency.

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Legal Proceedings and Other Contingencies (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) case Site	Jan. 31, 2017 case	Dec. 31, 2015 USD ($)	Jun. 29, 2009 Car
Loss Contingencies [Line Items]
Accruals for losses related to probable litigation matters \| $	$ 4.7
Number of sites for which the Company is involved in environmental remediation \| Site	18,000,000
Accruals for remediation and restoration \| $	$ 14.9		$ 13.2
Viareggio [Member]
Loss Contingencies [Line Items]
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims \| $	$ 1.4
Asbestos - related cases pending against the company and its subsidiaries	56
Asbestos Issue [Member]
Loss Contingencies [Line Items]
New cases filed number	7
Cases dismissed or settled	3
Pending Litigation [Member] \| Asbestos Cases [Member] \| Subsequent Event [Member]
Loss Contingencies [Line Items]
Asbestos - related cases pending against the company and its subsidiaries		22
Pending Litigation [Member] \| Asbestos Cases [Member] \| Subsequent Event [Member] \| Jones Act claims [Member]
Loss Contingencies [Line Items]
Asbestos - related cases pending against the company and its subsidiaries		57
Punctured and Ignited [Member] \| Viareggio [Member]
Loss Contingencies [Line Items]
number of railcars \| Car				1
Overturned [Member] \| Viareggio [Member]
Loss Contingencies [Line Items]
number of railcars \| Car				5
Derailed [Member] \| Viareggio [Member]
Loss Contingencies [Line Items]
number of railcars \| Car				14