Concession duty expense payable to the Mexican government.

No definition available.

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- Definition

Total period of time for payments due under railroad concession to Mexican government.

+ References

No definition available.

+ Details

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- Definition

Percentage guarantee by the Company of an unconsolidated affiliate's reserves or additional loans.

+ References

No definition available.

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- Definition

Percentage of gross revenue payable under railroad Concession to Mexican Government.

+ References

No definition available.

+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319

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Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Loss Contingencies [Line Items]
Tax benefit recognized relating to a previous uncertain tax position, as a result of lapse of the statute of limitations	$ 3.7
Financial Guarantee [Member]
Loss Contingencies [Line Items]
Letter of credit outstanding, amount	$ 5.5		$ 5.5
Percent guarantee of unconsolidated affiliate debt	50.00%		50.00%
KCSM [Member]
Loss Contingencies [Line Items]
Total period of time for payments due under railroad Concession to Mexican government			50 years
Percentage of gross revenue payable under railroad Concession to Mexican government			1.25%
KCSM [Member] \| Materials and Other Expense [Member]
Loss Contingencies [Line Items]
Concession duty expense	$ 4.2	$ 3.9	$ 12.7	$ 11.2
Panama Canal Railway Company [Member] \| Financial Guarantee [Member] \| 7.0% Senior Secured Notes due November 1, 2026 [Member]
Loss Contingencies [Line Items]
Debt instrument, stated interest rate	7.00%		7.00%
Debt instrument, maturity date			Nov. 01, 2026