Debt Conversion, Converted Instrument, Settled in Par

No definition available.

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- Definition

Debt Instrument, Number of Classes

+ References

No definition available.

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- Definition

Line of Credit Facility, Amount Outstanding Exclusive of Letters of Credit

+ References

No definition available.

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- Definition

Line of Credit Facility, Remaining Borrowing Capacity Exclusive of Current Restrictions

+ References

No definition available.

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- Definition

Non-Recourse Debt, Gross

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No definition available.

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- Definition

Railcars Acquired

+ References

No definition available.

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- Definition

Amount of increase (decrease) in additional paid in capital (APIC) resulting from recognition of deferred taxes for convertible debt with a beneficial conversion feature.

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- Definition

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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- Definition

Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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- Definition

Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

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- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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- Definition

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

+ References

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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

Variable interest rate in effect as of the balance sheet date related to the interest rate derivative.

+ References

No definition available.

+ Details

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- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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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

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

The effective interest rate at the end of the reporting period.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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No definition available.

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- Definition

Amount of debt for which creditor does not have general recourse to the debtor but rather has recourse only to the property used for collateral in the transaction or other specific property.

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No definition available.

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Debt - Narrative (Details)	12 Months Ended
Debt - Narrative (Details)	Dec. 31, 2018 USD ($) class	Nov. 08, 2018 USD ($)	Oct. 17, 2018 USD ($)	Jun. 02, 2018 USD ($)	Jun. 01, 2018 USD ($)	May 30, 2018 USD ($)	Dec. 31, 2017 USD ($)	Aug. 15, 2017 USD ($)	May 15, 2017 USD ($)	Sep. 30, 2014 USD ($)	May 31, 2014 USD ($) class	Aug. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Oct. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)	Nov. 30, 2009 USD ($)	May 31, 2006 USD ($)
Debt Instrument [Line Items]
Non-Recourse Debt, Gross	$ 3,666,900,000						$ 2,401,200,000
Non-recourse debt	3,631,800,000						2,375,600,000
Adjustments to Additional Paid in Capital, Convertible Debt with Conversion Feature	(152,900,000)
TRIHC 2018 Secured Railcar Equipment Notes [Member]
Debt Instrument [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt			$ 283,900,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	75,400,000
Railcars Acquired			4,150
Convertible subordinated notes
Debt Instrument [Line Items]
Convertible Debt				$ 449,300,000		$ 448,500,000
Debt Conversion, Converted Instrument, Settled in Par	800,000
Debt Conversion, Converted Instrument, Amount	646,600,000
Corporate \| Convertible subordinated notes \| 3-7/8% convertible subordinated notes due 2036
Debt Instrument [Line Items]
Debt instrument, convertible, if-converted value in excess of principal	$ 92,500,000
Effective annual interest rate	8.42%
Corporate \| Senior notes \| 4.55% Senior Notes due October 2024
Debt Instrument [Line Items]
Principal amount upon issuance										$ 400,000,000
Fixed interest rate										4.55%
Railcar Leasing and Management Services Group
Debt Instrument [Line Items]
Non-recourse debt	$ 3,631,800,000						2,375,600,000
Railcar Leasing and Management Services Group \| Capital lease obligations
Debt Instrument [Line Items]
Capital lease obligations	0						28,300,000								$ 56,600,000
Gain (Loss) on Disposition of Assets	12,600,000
Railcar Leasing and Management Services Group \| 2017 Promissory notes \| 2017 secured railcar equipment notes
Debt Instrument [Line Items]
Principal amount upon issuance		$ 663,000,000							$ 302,400,000
Revolving credit facility \| Corporate \| Line of credit
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	450,000,000						600,000,000
Credit facility, remaining borrowing capacity	392,500,000
Credit facility, amount outstanding exclusive of letters of credit	$ 0
Effective annual interest rate	1.25%
Line of Credit Facility, Interest Rate at Period End	0.175%
Letter of credit \| Corporate \| Line of credit
Debt Instrument [Line Items]
Letters of credit outstanding	$ 57,500,000
TRL 2012 \| Secured debt \| 2012 Class A-1 Notes
Debt Instrument [Line Items]
Principal amount upon issuance													$ 145,400,000
Fixed interest rate	2.27%
Non-recourse debt	$ 54,800,000
TRL 2012 \| Secured debt \| 2012 Class A-2 Notes
Debt Instrument [Line Items]
Principal amount upon issuance													$ 188,400,000
Fixed interest rate	3.53%
Non-recourse debt	$ 188,400,000
TRL 2012 \| Secured debt \| Series 2013 One Secured Railcar Equipment Notes [Member]
Debt Instrument [Line Items]
Principal amount upon issuance												$ 183,400,000
Fixed interest rate	3.90%
Non-recourse debt	$ 143,000,000
TRIP Master Funding secured railcar equipment notes \| Secured debt \| TRIP Master Funding Series 2017-1 Secured Railcar Equipment Notes [Domain]
Debt Instrument [Line Items]
Number of classes of debt	2
TRIP Master Funding secured railcar equipment notes \| Secured debt \| TRIP Master Funding Series 2017-1 Class A-1 Secured Railcar Equipment Note [Domain]
Debt Instrument [Line Items]
Fixed interest rate	2.71%
Non-recourse debt	$ 77,300,000
TRIP Master Funding secured railcar equipment notes \| Secured debt \| TRIP Master Funding Series 2017-1 Class A-2 Secured Railcar Equipment Note [Domain] [Domain]
Debt Instrument [Line Items]
Fixed interest rate	3.74%
Non-recourse debt	$ 134,900,000
Partially-owned subsidiaries
Debt Instrument [Line Items]
Non-recourse debt	1,315,200,000						1,350,800,000
Partially-owned subsidiaries \| Railcar Leasing and Management Services Group
Debt Instrument [Line Items]
Non-Recourse Debt, Gross	1,327,900,000						1,365,300,000
Non-recourse debt	1,315,200,000						1,350,800,000
Partially-owned subsidiaries \| Railcar Leasing and Management Services Group \| Secured debt \| TRIP Master Funding secured railcar equipment notes
Debt Instrument [Line Items]
Non-Recourse Debt, Gross	$ 941,700,000						962,500,000
Partially-owned subsidiaries \| Railcar Leasing and Management Services Group \| Secured debt \| TRIP Master Funding Series 2017-1 Secured Railcar Equipment Notes [Domain]
Debt Instrument [Line Items]
Principal amount upon issuance								$ 237,900,000
TRIP Master Funding \| Secured debt \| TRIP Master Funding secured railcar equipment notes
Debt Instrument [Line Items]
Number of classes of debt \| class	3
TRIP Master Funding \| Secured debt \| TRIP Master Funding Secured Railcar Equipment, Class A-1a notes
Debt Instrument [Line Items]
Fixed interest rate	4.37%
TRIP Master Funding \| Secured debt \| TRIP Master Funding Secured Railcar Equipment, Class A-1b notes \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	2.50%
TRIP Master Funding \| Secured debt \| Trip Master Funding Secured Railcar Equipment, Class A-2 notes
Debt Instrument [Line Items]
Fixed interest rate	6.02%
Non-recourse debt	$ 508,800,000
TRIP Master Funding \| Secured debt \| TRIP Master Funding, Series 2014-1 Secured Railcar Equipment Notes
Debt Instrument [Line Items]
Principal amount upon issuance											$ 335,700,000
Number of classes of debt \| class											2
TRIP Master Funding \| Secured debt \| TRIP Master Funding, Series 2014-1 Secured Railcar Equipment Notes, Class A-1
Debt Instrument [Line Items]
Fixed interest rate	2.86%
TRIP Master Funding \| Secured debt \| TRIP Master Funding Series, 2014-1 Secured Railcar Equipment Notes, Class A-2
Debt Instrument [Line Items]
Fixed interest rate	4.09%
TRIP Master Funding \| Railcar Leasing and Management Services Group \| Secured debt \| TRIP Master Funding Series, 2014-1 Secured Railcar Equipment Notes, Class A-2
Debt Instrument [Line Items]
Non-recourse debt	$ 220,700,000
Wholly-owned subsidiaries
Debt Instrument [Line Items]
Non-recourse debt	2,316,600,000						1,024,800,000
Wholly-owned subsidiaries \| Railcar Leasing and Management Services Group
Debt Instrument [Line Items]
Non-Recourse Debt, Gross	2,336,300,000						1,035,900,000
Non-recourse debt	2,316,600,000						1,024,800,000
Wholly-owned subsidiaries \| Railcar Leasing and Management Services Group \| Secured debt \| 2006 secured railcar equipment notes
Debt Instrument [Line Items]
Non-Recourse Debt, Gross	133,400,000						158,500,000
Wholly-owned subsidiaries \| Railcar Leasing and Management Services Group \| Secured debt \| 2009 secured railcar equipment notes
Debt Instrument [Line Items]
Non-Recourse Debt, Gross	159,700,000						166,200,000
Wholly-owned subsidiaries \| Railcar Leasing and Management Services Group \| Secured debt \| 2010 secured railcar equipment notes
Debt Instrument [Line Items]
Non-Recourse Debt, Gross	257,000,000						266,900,000
Wholly-owned subsidiaries \| Railcar Leasing and Management Services Group \| 2017 Promissory notes \| 2017 secured railcar equipment notes
Debt Instrument [Line Items]
Non-Recourse Debt, Gross	660,200,000						293,600,000
Wholly-owned subsidiaries \| Revolving credit facility \| Railcar Leasing and Management Services Group \| Line of credit \| TILC warehouse facility
Debt Instrument [Line Items]
Non-Recourse Debt, Gross	374,800,000						150,700,000
Credit facility, remaining borrowing capacity, exclusive of current restrictions	375,200,000
Trinity Rail Leasing 2018 [Domain] \| Secured debt \| 2018 Secured Railcar Equipment Class A-2 Note [Domain]
Debt Instrument [Line Items]
Principal amount upon issuance	282,500,000				$ 282,500,000
Fixed interest rate					4.62%
Trinity Rail Leasing 2018 [Domain] \| Secured debt \| 2018 Secured Railcar Equipment Class A-1 Note [Domain]
Debt Instrument [Line Items]
Principal amount upon issuance	190,000,000				$ 200,000,000
Fixed interest rate					3.82%
Trinity Rail Leasing 2018 [Domain] \| Secured debt \| 2018 Secured Railcar Equipment Notes [Domain]
Debt Instrument [Line Items]
Principal amount upon issuance					$ 482,500,000
TILC \| Revolving credit facility \| Railcar Leasing and Management Services Group \| Line of credit \| TILC warehouse facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 750,000,000.0						$ 1,000,000,000
Effective annual interest rate	4.11%
Long-term line of credit	$ 374,800,000
TRL 2010 \| Secured debt \| 2010 secured railcar equipment notes
Debt Instrument [Line Items]
Principal amount upon issuance														$ 369,200,000
Fixed interest rate	5.19%
TRL VII \| Secured debt \| 2009 secured railcar equipment notes
Debt Instrument [Line Items]
Principal amount upon issuance																$ 238,300,000
Fixed interest rate	6.66%
TRL V \| Secured debt \| 2006 secured railcar equipment notes
Debt Instrument [Line Items]
Principal amount upon issuance																	$ 355,000,000
Fixed interest rate	5.90%
Designated as hedging instrument \| 2017 Promissory note
Debt Instrument [Line Items]
2017 Promissory note interest rate	4.00%
Partially-owned subsidiaries \| Railcar Leasing and Management Services Group
Debt Instrument [Line Items]
Weighted average ownership interest	38.00%
Additional Paid-in Capital [Member]
Debt Instrument [Line Items]
Adjustments to Additional Paid in Capital, Convertible Debt with Conversion Feature	$ (152,900,000)