Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959

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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.

+ References

No definition available.

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- Definition

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=112277219&loc=d3e80748-113994

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Derivative Instruments - Effect on statements of operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Interest rate swap, Expired, TRIP Holdings warehouse loan
Derivative Instruments, Gain (Loss) [Line Items]
Expected effect during next twelve months	$ 2.0		$ 2.0
Interest expense \| Designated as hedging instrument \| Interest rate swap, Expired, 2006 secured railcar equipment notes
Derivative Instruments, Gain (Loss) [Line Items]
Effect on interest expense	0.0	$ (0.1)	(0.1)	$ (0.2)
Expected effect during next twelve months	(0.1)		(0.1)
Interest expense \| Designated as hedging instrument \| Interest rate swap, Expired, TRIP Holdings warehouse loan
Derivative Instruments, Gain (Loss) [Line Items]
Effect on interest expense	0.5	1.1	1.7	3.4
Expected effect during next twelve months	2.0		2.0
Interest expense \| Designated as hedging instrument \| Interest rate swap, Open, TRIP Master Funding secured railcar equipment notes
Derivative Instruments, Gain (Loss) [Line Items]
Loss on derivative, net	0.1	$ 0.1	0.2	$ 0.4
Expected effect during next twelve months	$ 0.2		$ 0.2