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Depreciation, Depletion, and Amortization All Adjustments to Compensation All Adjustments to Compensation [Member] Equity [Abstract] Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Signal Rail Holdings LLC Signal Rail Holdings LLC [Member] Signal Rail Holdings LLC Other comprehensive income, net of tax, before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Income Statement [Abstract] Income Statement [Abstract] Document Transition Report Document Transition Report Ownership [Axis] Ownership [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Investment, Name [Axis] Investment, Name [Axis] 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Railcar Conversions Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Inflation Reduction Act - Payment to Acquire Federal Tax Credits Inflation Reduction Act - Payment to Acquire Federal Tax Credits Inflation Reduction Act - Payment to Acquire Federal Tax Credits Recourse Status [Domain] Recourse Status [Domain] Statement [Line Items] Statement [Line Items] Total assets Assets Assets Entity [Domain] Entity [Domain] Amortization of net actuarial losses, net of tax benefit of $—, $—, $—, and $— Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax Triumph Rail Holdings LLC Triumph Rail Holdings LLC [Member] Triumph Rail Holdings LLC Manufacturing Manufacturing [Member] Manufacturing [Member] Equity Method Investment, Nonconsolidated Investee [Domain] Equity Method Investment, Nonconsolidated Investee [Domain] Operating Segments [Member] Operating Segments [Member] Operating Segments [Member] Inflation 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of Highway Products [Member] Sale of Highway Products Construction in progress Construction in Progress [Member] (Increase) decrease in inventories Increase (Decrease) in Inventories Raw materials and supplies Inventory, Raw Materials and Supplies, Net of Reserves Distributions to noncontrolling interest Proceeds from (Payments to) Noncontrolling Interests Segment Reporting [Table] Segment Reporting [Table] Selling, engineering, and administrative expenses Selling, General and Administrative Expense [Abstract] Recourse Recourse [Member] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), 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Recurring and Nonrecurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract] Treasury Stock, Common, Shares Treasury Stock, Common, Shares Leasing and Management [Member] Leasing and Management [Member] Leasing and Management. 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Receivable Depreciation and amortization Depreciation, Depletion and Amortization Net income from continuing operations attributable to Trinity Industries, Inc. Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic Derecognition of Membership Interest, Net Assets Derecognition of Membership Interest, Net Assets Derecognition of Membership Interest, Net Assets Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Interest Rate Cap [Member] Interest Rate Cap [Member] Derivative Liability Derivative Liability Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Provision for income taxes Income Tax Expense (Benefit) Cost of revenues: Cost of Product and Service Sold Award Timing Method Award Timing Method [Text Block] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Consolidation, Policy [Policy Text Block] Consolidation, Policy [Policy Text Block] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Net income attributable to Trinity Industries, Inc. Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Less: unamortized debt issuance costs Unamortized Debt Issuance Expense Railcars on Lease [Member] Railcars on Lease [Member] Railcars on Lease Balance Sheet Location [Axis] Location, Statement of Financial Position, Balance [Axis] Statement [Table] Statement [Table] Debt, Net of Unamortized Premium and Unamortized Discount, Gross of Unamortized Debt Issuance Costs Debt, Net of Unamortized Premium and Unamortized Discount, Gross of Unamortized Debt Issuance Costs Debt, Net of Unamortized Premium and Unamortized Discount, Gross of Unamortized Debt Issuance Costs Restatement Determination Date: Restatement Determination Date [Axis] Tribute Rail LLC Tribute Rail LLC [Member] Tribute Rail LLC Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Debt Instrument, Unamortized Premium Debt Instrument, Unamortized Premium Investment Holdings, Other than Securities [Line Items] Investment Holdings, Other than Securities [Line Items] Remaining Performance Obligation Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Contract with Customer, Contract Asset, Contract Liability, and Receivable Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Revenues [Abstract] Revenues [Abstract] Treasury Stock, Shares, Retired Treasury Stock, Shares, Retired Accounts Receivable, Allowance for Credit Loss, Recovery Accounts Receivable, Allowance for Credit Loss, Recovery Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]