Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 55

-Paragraph 10

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-Name Accounting Standards Codification

-Topic 825

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-Section 50

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-Topic 210

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-Topic 825

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-Name Accounting Standards Codification

-Topic 815

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-Section 45

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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.

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- Definition

The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

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Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective.

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-Topic 815

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Derivative Instruments (Details Textual) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Jul. 31, 2011	Dec. 31, 2007	Dec. 31, 2006
Interest rate swap, Expired, TRIP Holdings warehouse loan
Derivative [Line Items]
Expected effect during next twelve months	$ 4.8
Fuel derivative instruments
Derivative [Line Items]
Derivative liabilities	0.7
Designated as hedging instrument \| Interest rate swap, Expired, 2006 secured railcar equipment notes
Derivative [Line Items]
Notional amount	200.0			$ 200.0
Changes in fair value of cash flow hedges which is being amortized to income (loss)	4.5
Derivative liabilities	0.0
Designated as hedging instrument \| Interest rate swap, Promissory notes
Derivative [Line Items]
Notional amount			$ 370.0
Changes in fair value of cash flow hedges which is being amortized to income (loss)	(24.5)
Designated as hedging instrument \| Interest rate swap, Expired, TRIP Holdings warehouse loan
Derivative [Line Items]
Notional amount	788.5
Derivative liabilities	$ 0.0
Designated as hedging instrument \| TRIP Master Funding secured railcar equipment notes
Derivative [Line Items]
Notional amount		$ 94.1