75000 - Document - Cover Page
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75010 - Statement - Consolidated Balance Sheets
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75020 - Statement - Consolidated Balance Sheets (Parenthetical)
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75030 - Statement - Consolidated Statements of Income
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75040 - Statement - Consolidated Statements of Comprehensive Income
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75050 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical)
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75060 - Statement - Consolidated Statements of Equity
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75070 - Statement - Consolidated Statements of Equity (Parenthetical)
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75080 - Statement - Consolidated Statements of Cash Flows
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995455 - Disclosure - Cybersecurity Risk Management, Strategy, and Governance
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995465 - Disclosure - Nature of Operations
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995475 - Disclosure - Summary of Significant Accounting Policies
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995485 - Disclosure - Asset Backed Securities
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995495 - Disclosure - Revenue Recognition
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995505 - Disclosure - Divestitures
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995515 - Disclosure - Inventories
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995525 - Disclosure - Property, Plant and Equipment, net
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995535 - Disclosure - Goodwill
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995545 - Disclosure - Intangibles and Other Assets, net
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995555 - Disclosure - Revolving Notes
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995565 - Disclosure - Accounts Payable and Accrued Liabilities
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995575 - Disclosure - Warranty Accrual
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995585 - Disclosure - Debt, net
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995595 - Disclosure - Derivative Instruments
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995605 - Disclosure - Equity
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995615 - Disclosure - Earnings Per Share
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995625 - Disclosure - Related Party Transactions
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995635 - Disclosure - Income Taxes
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995645 - Disclosure - Segment Information
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995655 - Disclosure - Customer Concentration
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995665 - Disclosure - Lease Commitments
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995675 - Disclosure - Commitments and Contingencies
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995685 - Disclosure - Fair Value Measures
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995695 - Disclosure - Fair Value of Financial Instruments
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995705 - Disclosure - Summary of Significant Accounting Policies (Policies)
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995715 - Disclosure - Summary of Significant Accounting Policies (Tables)
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995725 - Disclosure - Asset Backed Securities (Tables)
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995735 - Disclosure - Revenue Recognition (Tables)
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995745 - Disclosure - Inventories (Tables)
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995755 - Disclosure - Property, Plant and Equipment, net (Tables)
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995765 - Disclosure - Goodwill (Tables)
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995775 - Disclosure - Intangibles and Other Assets, net (Tables)
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995785 - Disclosure - Revolving Notes (Tables)
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995795 - Disclosure - Accounts Payable and Accrued Liabilities (Tables)
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995805 - Disclosure - Warranty Accrual (Tables)
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995815 - Disclosure - Debt, net (Tables)
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995825 - Disclosure - Derivative Instruments (Tables)
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995835 - Disclosure - Equity (Tables)
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995845 - Disclosure - Earnings Per Share (Tables)
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995855 - Disclosure - Income Taxes (Tables)
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995865 - Disclosure - Segment Information (Tables)
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995875 - Disclosure - Lease Commitments (Tables)
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995885 - Disclosure - Fair Value Measures (Tables)
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995895 - Disclosure - Fair Value of Financial Instruments (Tables)
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995905 - Disclosure - Nature of Operations - Additional Information (Detail)
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995915 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail)
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995925 - Disclosure - Summary of Significant Accounting Policies - Allowance for Credit Losses (Detail)
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995935 - Disclosure - Summary of Significant Accounting Policies - Estimated Useful Lives (Detail)
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995945 - Disclosure - Summary of Significant Accounting Policies - Components of Accumulated Other Comprehensive Loss, Net of Tax (Detail)
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995955 - Disclosure - Summary of Significant Accounting Policies - Amounts Reclassified out of Accumulated Other Comprehensive Loss (Detail)
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995965 - Disclosure - Summary of Significant Accounting Policies - Interest and Foreign Exchange (Detail)
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995975 - Disclosure - Asset Backed Securities - Additional Information (Detail)
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995985 - Disclosure - Asset Backed Securities - Summary of Net Carrying Amount of Assets Transferred and Related Debt (Detail)
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995995 - Disclosure - Revenue Recognition - Summary of Revenue Disaggregated by Categories (Details)
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996005 - Disclosure - Revenue Recognition - Summary of Contract Balances (Detail)
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996015 - Disclosure - Revenue Recognition - Additional information (Detail)
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996025 - Disclosure - Revenue Recognition - Summary of Estimated Revenue Related to Performance Obligations (Detail)
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996035 - Disclosure - Revenue Recognition - Additional information (Detail1)
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996035 - Disclosure - Revenue Recognition - Additional information (Detail1) [Default]
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996045 - Disclosure - Divestitures - Additional Information (Details)
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996055 - Disclosure - Inventories - Components of Inventories (Detail)
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996065 - Disclosure - Inventories - Inventory Valuation (Detail)
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996075 - Disclosure - Property, Plant and Equipment, Net - Property, Plant and Equipment, Net (Detail)
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996085 - Disclosure - Property, Plant and Equipment, Net - Additional Information (Detail)
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996095 - Disclosure - Goodwill - Schedule of Changes in Carrying Value of Goodwill (Detail)
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996105 - Disclosure - Goodwill - Additional Information (Detail)
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996115 - Disclosure - Intangibles and Other Assets, Net - Identifiable Intangible and Other Assets (Detail)
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996125 - Disclosure - Intangibles and Other Assets, Net - Additional Information (Detail)
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996135 - Disclosure - Revolving Notes - Additional Information (Detail)
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996145 - Disclosure - Revolving Notes - Schedule of Credit Facility Balances (Detail)
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996155 - Disclosure - Accounts Payable and Accrued Liabilities - Accounts Payable and Accrued Liabilities (Detail)
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996165 - Disclosure - Warranty Accrual - Warranty Accrual Activity (Detail)
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996175 - Disclosure - Debt, Net - Debt, Net (Detail)
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996185 - Disclosure - Debt, Net - Debt, Net (Parenthetical) (Details)
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996195 - Disclosure - Debt, Net - Additional Information (Detail)
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996205 - Disclosure - Debt, Net - Summary of Net Carrying Amount of Assets Transferred and Related Debt (Detail)
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996215 - Disclosure - Debt, Net - Schedule of Contractual Maturities of Recourse and Non-recourse Debt (Detail)
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996225 - Disclosure - Debt, Net - Principal Payments on Notes Payable (Parenthetical) (Detail)
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996235 - Disclosure - Derivative Instruments - Additional Information (Detail)
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996245 - Disclosure - Derivative Instruments - Fair Values of Derivative Instruments (Detail)
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996255 - Disclosure - Derivative Instruments - Effect of Derivative Instruments on Accumulated Other Comprehensive Loss and Statements of Income (Detail)
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996265 - Disclosure - Derivative Instruments - Effects of Cash Flow Hedges Included in Statements of Income (Detail)
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996275 - Disclosure - Equity - Additional Information (Detail)
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996285 - Disclosure - Equity - Summary of Estimated Fair Value under Monte-Carlo Simulation Model Assumptions (Details)
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996295 - Disclosure - Equity - Summary of Restricted Stock Share and Restricted Stock Unit Grants (Detail)
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996305 - Disclosure - Equity - Summary of Restricted Stock Share and Restricted Stock Unit Grants (Parenthetical) (Detail)
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996315 - Disclosure - Earnings Per Share - Reconciliation of Shares Used in Computation of Basic and Diluted Earnings Per Common Share (Detail)
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996325 - Disclosure - Earnings Per Share - Reconciliation of Shares Used in Computation of Basic and Diluted Earnings Per Common Share (Parenthetical) (Detail)
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996335 - Disclosure - Earnings Per Share - Additional Information (Detail)
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996345 - Disclosure - Earnings Per Share - Approach to Calculate Diluted Earnings Per Share (Detail)
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996355 - Disclosure - Earnings Per Share - Approach to Calculate Diluted Earnings Per Share (Parenthetical) (Detail)
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996365 - Disclosure - Related Party Transactions - Additional Information (Detail)
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996375 - Disclosure - Income Taxes - Schedule of Components of Income From Continuing Operations Before Income Taxes (Details)
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996385 - Disclosure - Income Taxes - Components of Income Tax Expense of Continuing Operations (Detail)
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996395 - Disclosure - Income Taxes - Additional information (Detail)
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996405 - Disclosure - Income Taxes - Reconciliation Between Effective and Statutory Tax Rates on Continuing Operations (Detail)
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996415 - Disclosure - Income Taxes - Tax Effects of Temporary Differences that give rise to Significant Portions of Deferred Tax Assets and Deferred Tax Liabilities (Detail)
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996425 - Disclosure - Income Taxes - Unrecognized Tax Benefits (Detail)
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996435 - Disclosure - Income Taxes - Schedule of Components of Income Taxes Refunded Net of Payments (Details)
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996445 - Disclosure - Segment Information - Additional Information (Detail)
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996455 - Disclosure - Segment Information - Segments Internal Financial Reports (Detail)
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996465 - Disclosure - Segment Information - Summary of Geographic Information (Detail)
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996475 - Disclosure - Segment Information - Reconciliation of Earnings from Operations to Earnings Before Income Tax and Earnings from Unconsolidated Affiliates (Detail)
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996485 - Disclosure - Customer Concentration - Additional Information (Detail)
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996495 - Disclosure - Lease Commitments - Additional Information (Detail)
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996505 - Disclosure - Lease Commitments - Aggregate Minimum Future Amounts Receivable Under All Non-Cancelable Operating Leases and Subleases (Detail)
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996515 - Disclosure - Lease Commitments - Components of Operating Lease Costs (Detail)
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996525 - Disclosure - Lease Commitments - Aggregate Minimum Future Amounts Payable Under Operating Leases (Detail)
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996535 - Disclosure - Lease Commitments - Aggregate Minimum Future Amounts Payable Under Operating Leases (Detail) 2
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996545 - Disclosure - Lease Commitments - Additional Information Related to Company's Operating Leases (Detail)
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996555 - Disclosure - Lease Commitments - Supplemental Cash Flow Information Related to Leases (Detail)
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996565 - Disclosure - Commitments and Contingencies - Additional Information (Detail)
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996575 - Disclosure - Fair Value Measures - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)
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996585 - Disclosure - Fair Value of Financial Instruments - Fair Value of Financial Instruments (Detail)
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Vested
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Proceeds from Sale of Property, Plant, and Equipment
Proceeds from sales of assets
Proceeds from Sale of Property, Plant, and Equipment, Total
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax
Unrealized gain (loss) on derivative financial instruments
Manufacturing.
Manufacturing [Member]
Manufacturing
Segments [Domain]
Segments
Foreign
Income (Loss) from Continuing Operations before Income Taxes, Foreign
Income tax and earnings from unconsolidated affiliates,Foreign operations
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Net of tax
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total
Concentration Risk Type [Axis]
Concentration Risk Type
Deferred Tax Assets, Gross [Abstract]
Deferred tax assets:
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Statement of Financial Position Location, Balance [Domain]
Balance Sheet Location
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Non-cash activity
Summary of Debt
Schedule of Long-Term Debt Instruments [Table Text Block]
Plan Name [Axis]
Plan Name
Equity [Abstract]
Revenue recognized with railcars sold into leasing warehouse
Revenue Recognized With Railcars Sold Into The Leasing Warehouse
Revenue recognized with railcars sold into the leasing warehouse.
.
Entity Current Reporting Status
Entity Current Reporting Status
Goodwill, Gross
Gross goodwill balance before accumulated goodwill impairment losses and other reductions
Increase (Decrease) in Deferred Liabilities
Change in contract liabilities
Increase (Decrease) in Deferred Liabilities, Total
Fair Value, Inputs, Level 2 [Member]
Fair Value, Inputs, Level 2
Deferred tax assets
Deferred Tax Assets, Net of Valuation Allowance
Deferred Tax Assets, Net of Valuation Allowance, Total
Commitments and Contingencies Disclosure [Text Block]
Commitments and Contingencies
Cash Flow Hedging [Member]
Cash Flow Hedging
Common Stock, Shares Authorized
Common stock, shares authorized
Future amortization expense, 2030
Finite-Lived Intangible Asset, Expected Amortization, Year Four
Accounts Receivable, after Allowance for Credit Loss
Accounts receivable, net
Accounts Receivable, after Allowance for Credit Loss, Total
Investment, Policy [Policy Text Block]
Investment in unconsolidated affiliates
Product and Service [Axis]
Product and Service
Rayvag.
Rayvag [Member]
Rayvag
Document Fiscal Period Focus
Document Fiscal Period Focus
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Debt Instrument, Interest Rate, Stated Percentage
Debt instrument, interest rate
Revenue from Contract with Customer [Abstract]
Entity Shell Company
Entity Shell Company
2023 GBXL Notes
2023 GBXL Notes.
Two Thousand Twenty Three GBXL Notes [Member]
SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]
SEC Schedule, 12-09, Valuation Allowances and Reserves Type
Service [Member]
Services
Cash and Cash Equivalent
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value, Total
Schedule of Maturities of Long-Term Debt [Table Text Block]
Schedule of Contractual Maturities of Recourse and Non-recourse Debt
SEC Schedule, 12-09, Reserve, Inventory [Member]
Inventory Valuation Reserve
Goodwill Disclosure [Text Block]
Goodwill
Equipment on operating leases, net.
Equipment On Operating Leases Net
Equipment on operating leases, net
Number Of Railcars With Management Services Provided
Number of railcars that get services
Number of railcars with management services provided.
Cybersecurity Risk Management, Strategy, and Governance [Abstract]
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]
TEXAS
Texas
Cybersecurity Risk Board of Directors Oversight [Text Block]
Statement [Table]
Statement [Table]
Sublease period.
Sublease Period
Sublease period
Two Point Eight Seven Five Convertible Senior Notes Due 2024
Two Point Eight Seven Five Convertible Senior Notes Due2024 [Member]
2.875% Convertible senior notes, due 2024
2.875% Convertible senior notes, due 2024
Operating leases
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Guarantor Obligations, Nature [Domain]
Guarantor Obligations, Nature
percentage of weighted ROIC
Percentage Of Weighted Return On Invested Capital
Percentage of weighted return on invested capital.
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax
Net foreign currency translation adjustment
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax, Beginning Balance
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax, Ending Balance
Statement [Line Items]
Statement [Line Items]
Entity Filer Category
Entity Filer Category
Reclassification, Comparability Adjustment [Policy Text Block]
Reclassifications
Commitments and Contingencies Disclosure [Table]
Commitments And Contingencies Disclosure [Table]
Commitments And Contingencies Disclosure [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Leasing warehouse.
Leasing Warehouse [Member]
Leasing Warehouse
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent
Amounts reclassified from AOCL
Liabilities and Equity
Liabilities and Equity
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Payables and Accruals [Abstract]
State [Member]
State [Member]
State
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent
Uncertain tax positions
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent, Total
2029
Long-Term Debt, Maturity, Year Three
Repayments of revolving notes in 2027
Long-Lived Tangible Asset [Axis]
Long-Lived Tangible Asset
Severance and exit costs
Severance
Severance Costs
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Table]
Fair Value, by Balance Sheet Grouping [Table Text Block]
Estimated Fair Values of Financial Instruments and Methods and Assumptions Used
Hedging Relationship [Axis]
Hedging Relationship
ROMANIA
Romania
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]
Financial Instruments Disclosure [Text Block]
Fair Value of Financial Instruments
Derivative [Line Items]
Derivative [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure
Cash equivalents
Standard and Extended Product Warranty Accrual, Decrease for Payments
Payments
Finite-Lived Intangible Assets, Remaining Amortization Period
Amortizable intangible assets, weighted-average remaining useful life
Valuation allowance
Deferred Tax Assets, Valuation Allowance
Deferred tax assets, valuation allowance
Euro Interbank Offered Rate.
Euro Interbank Offered Rate [Member]
EURIBOR
U.S. federal statutory tax rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Statutory federal corporate tax rate
Federal statutory rate
Cybersecurity Risk Management Third Party Engaged [Flag]
Documents Incorporated by Reference [Text Block]
Documents Incorporated by Reference
Ending balance
Goodwill
Ending balance
Beginning balance
Goodwill
Effective Income Tax Rate Reconciliation, Percent
Effective tax rate
2024 Convertible Senior Notes
Two Thousand Twenty Four Convertible Senior Notes [Member]
2024 Convertible Senior Notes
Poland
POLAND
Income Tax Jurisdiction [Axis]
Income Tax Authority
Tax Credit Carryforward, Expiration Year
Tax Credit Carryforward Expiration Year
Credit carryforwards expiration year
Geographical [Domain]
Geographical
Inventory, Finished Goods, Gross
Finished goods
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Officer's Compensation, Percent
Effective income tax rate reconciliation, nondeductible expense, officer's compensation, percent.
Nontaxable or nondeductible Items, Officer's compensation
Summary of net carrying amount of assets transferred and related debt.
Summary of Net Carrying Amount of Assets Transferred and Related Debt [Table Text Block]
Summary of Net Carrying Amount of Assets Transferred and Related Debt
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]
Reconciliation of Earnings from Operations to Earnings Before Income Tax and Earnings from Unconsolidated Affiliates
Segment, Expenditure, Addition to Long-Lived Assets
Capital expenditures
Schedule of Inventory, Current [Table Text Block]
Components of Inventories
Accounts Receivable, Allowance for Credit Loss
Balance at end of period
Balance at beginning of period
Allowance for credit losses
Unallocated, including cash.
Unallocated Including Cash [Member]
Unallocated, including cash
Additional Paid in Capital, Common Stock
Additional paid-in capital
Reduction to additional paid in capital
Debt Issuance Costs, Net
Debt issuance costs, net
Debt issuance costs
Debt Issuance Costs, Net, Total
Tabular disclosure of supplemental cash flow information related to operating leases.
Supplemental Cash Flow Information Related To Operating Leases Table [Text Block]
Supplemental Cash Flow Information Related to Leases
Derivative, Maturity Month and Year
Derivative Maturity Month And Year
Maturity date
Related Party [Member]
Noncash redemption value of noncontrolling interest
Noncontrolling Interest, Change in Redemption Value
Joint venture agreement.
Joint Venture Agreement [Member]
Joint Venture Agreement
Significant Accounting Policies [Text Block]
Summary of Significant Accounting Policies
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Leasing Senior Term Debt [Member]
Leasing senior term debt.
Leasing Senior Term Debt
Railcar Components Member.
Railcar Components [Member]
Railcar Components
Finite-Lived Intangible Asset, Useful Life
Estimated useful lives
Concentration Risk [Table]
Concentration Risk [Table]
Share Repurchase Program [Axis]
Share Repurchase Program
Guarantor Obligations, Nature [Axis]
Guarantor Obligations, Nature
Intangibles and Other Assets by Major Class [Table]
Intangibles And Other Assets By Major Class [Table]
Intangibles And Other Assets By Major Class [Table]
Disaggregation of Revenue [Table]
Cybersecurity Risk Management, Strategy, and Governance [Table]
Maintenance services.
Maintenance Services [Member]
Maintenance Services
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense
Charge to cost of revenue
Concentration Risk Disclosure [Text Block]
Customer Concentration
Investment, Name [Axis]
Investment, Name
Basic earnings per common share
Earnings Per Share, Basic
Basic earnings per common share
Earnings Per Share, Basic, Total
Disaggregation of Revenue [Table Text Block]
Summary of Revenue Disaggregated by Categories
GBXL I Series 2022-1 class B secured railcar equipment notes.
GBXL I Series 2022-1 Class B Secured Railcar Equipment Notes [Member]
GBXL I Series 2022-1 Class B Secured Railcar Equipment Notes
Inventory.
Inventory Table [Text Block]
Inventory Valuation
2021 Stock Incentive Plan
Two Thousand Twenty One Stock Incentive Plan [Member]
Two thousand twenty one stock incentive plan.
Revolving Credit Facility [Member]
Revolving Line of Credit, 1st Component of Senior Secured Credit Facilities
Revolving Credit Facility
Operating Lease, Lease Income
Operating lease rental revenues
Operating Lease, Lease Income, Total
Secured overnight financing rate.
Secured Overnight Financing Rate [Member]
SOFR
Changes in unrecognized tax benefits
Effective Income Tax Rate Reconciliation, Changes in Unrecognized Tax Benefits, Percent
Effective income tax rate reconciliation, changes in unrecognized tax benefits, percent.
Increase (Decrease) in Accounts Receivable
Accounts receivable, net
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
Adjustments to reconcile net earnings to net cash provided by operating activities:
2031
Lessee, Operating Lease, Liability, to be Paid, Year Five
Hedging Designation [Domain]
Hedging Designation
Effective Income Tax Rate Reconciliation, Cross-Border, Other, Amount
Effects of cross-border tax laws, Other
Federal
Income Tax Paid, Federal, after Refund Received
Income Tax Paid, Federal, after Refund Received, Total
Share Repurchase Program [Domain]
Share Repurchase Program
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount
Tax credits, Other
Tax credits, Other
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction
Disposition of inventory
Effective Income Tax Rate Reconciliation [Table]
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions
Gross increases – tax positions in prior period
Payments of Debt Issuance Costs
Debt issuance costs
Increase Decrease in Leased Railcars for Syndication
Increase Decrease In Leased Railcars For Syndication
Leased railcars for syndication
Accounting Standards Update [Axis]
Accounting Standards Update
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member]
Reconciling Items
Consolidation Items [Domain]
Consolidation Items
Foreign Line Of Credit Two [Member]
Foreign Line Of Credit Two [Member]
Mexican Railcar Manufacturing Joint Venture Line of Credit, 3rd Component of Senior Secured Credit Facilities
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax
Reclassification of derivative financial instruments recognized in net earnings (loss), tax
Revenue and Cost of Revenue
Revenue And Cost Of Revenue
Revenue and Cost of revenue
Equity, Attributable to Parent [Abstract]
Greenbrier
Schedule of Components of Income Taxes Refunded, Net of Payments
Components of Income Taxes Refunded Net of Payments [Table Text Block]
Components of income taxes refunded, net of payments.
Entity Small Business
Entity Small Business
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net, Total
Gain (loss) amount excluded from effectiveness testing
Hedging Designation [Axis]
Hedging Designation
Retained earnings
Retained Earnings (Accumulated Deficit)
Retained Earnings (Accumulated Deficit), Total
Increase in retained earnings
Redeemable Noncontrolling Interest [Member]
Redeemable Noncontrolling Interest [Member]
Contingently Redeemable Noncontrolling Interest
Accounting Standards Update 2016-02
Accounting Standards Update 2016-02
Nature of Operations [Text Block]
Nature of Operations
Goodwill, Foreign Currency Translation and Measurement Period Adjustments
Translation and other adjustments
Derivatives Maturing From August Two Thousand Twenty Seven Through January Two Thousand Thirty Two [Member]
Derivatives maturing from august two thousand twenty seven through january two thousand thirty two.
Derivatives Maturing from August 2027 through January 2032
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other than Options, Incremental Shares Earned for Performance in Period
Share based compensation arrangement by share based payment award, equity instruments other than options, incremental shares earned for performance in period.
Incremental shares earned for performance
Incremental shares earned for performance awarded to participants based on EBITDA criteria
Current Foreign Tax Expense (Benefit)
Foreign
DF
Fair Value of Financial Instruments [Abstract]
Fair Value Of Financial Instruments [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities
Dilutive effect of convertible notes
Payments of Dividends
Dividends
Payments of Dividends, Total
Lease Contractual Term [Axis]
Lease Contractual Term
Leases [Abstract]
Derivative Instrument Maturity
Derivative Instrument Maturity [Domain]
Derivative Instrument Maturity
Contract with Customer, Liability
Contract liabilities
Contract with Customer, Liability, Total
Percentage of weighted EBITDA
Percentage Of Weighted Earnings Before Interest, Taxes, Depreciation And Amortization
Percentage of weighted earnings before interest, taxes, depreciation and amortization.
Amendment Flag
Amendment Flag
Product and Service [Domain]
Product and Service
U.S. federal statutory tax rate
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Inventory Disclosure [Text Block]
Inventories
Inventory Adjustments, Total
Inventory Adjustments
Excess and obsolete adjustment
Excess and obsolete adjustment
Amount reclassified to manufacturing revenue and cost of revenue in the next year
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months
Earnings per common share (EPS)
Earnings Per Share, Policy [Policy Text Block]
Concentration Risk [Line Items]
Concentration Risk [Line Items]
Liabilities and Equity [Abstract]
Liabilities and Equity
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Accounts Receivable [Policy Text Block]
Accounts receivable
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Net cash provided by operating activities
Schedule of effects of cash flow hedges included in statement of income.
Schedule Of Effects Of Cash Flow Hedges Included In Statement Of Income Table [Text Block]
Effects of Cash Flow Hedges Included in Statements of Income
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description
Common Stock [Member]
Common Stock Shares
Tabular disclosure of operating leases of lessor.
Operating Leases Of Lessor Table [Text Block]
Aggregate Minimum Future Amounts Receivable Under All Non-Cancelable Operating Leases and Subleases
Cybersecurity Risk Role of Management [Text Block]
Tax Credit Carryforward, Amount
Credit carryforwards
2027
Long-Term Debt, Maturity, Year One
Repayments of revolving notes in 2025
Accumulated Other Comprehensive Income (Loss), Policy
Accumulated Other Comprehensive Income Loss Policy Textblock
Accumulated other comprehensive loss
Hedging Relationship [Domain]
Hedging Relationship
2029
Lessee, Operating Lease, Liability, to be Paid, Year Three
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Accumulated depreciation
Accumulated depreciation
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Fair Values of Derivative Instruments
Income Tax Paid, by Individual Jurisdiction [Line Items]
Debt Instrument, Interest Rate, Effective Percentage
Debt instrument, effective interest rate
Portion at Fair Value Measurement [Member]
Fair Value Disclosure Item Amounts [Default]
Portion at Fair Value Measurement [Member] [Default]
Entity Address, Address Line One
Entity Address, Address Line One
Deferred Tax Liabilities, Gross
Deferred Tax Liabilities, Gross, Total
Deferred Tax Liabilities, Gross, Total
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]
Summary of Estimated Fair Value under Monte-Carlo Simulation Model Assumptions
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger
Debt instrument, convertible, threshold percentage of stock price trigger
Earnings Per Share [Abstract]
Income Tax, Policy [Policy Text Block]
Income taxes
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]
Commitments and Contingencies Disclosure [Line Items]
Commitments And Contingencies Disclosure [Line Items]
Commitments and Contingencies Disclosure [Line Items]
Supplemental Cash Flow Information [Abstract]
Cash paid during the period for
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Foreign currency translation
Unclassified Balance Sheet.
Unclassified Balance Sheet Policy Textblock
Unclassified balance sheet
Derivative Asset
Derivative financial instruments
Asset Derivatives
Derivative Asset, Total
Statement of Financial Position Location, Balance [Axis]
Balance Sheet Location
Railcar Sales
Railcar sales.
Rail Cars [Member]
Operating Lease, Right-of-Use Asset
Operating lease ROU assets
Deferred Tax Assets, Gross
Deferred Tax Assets, Gross, Total
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]
Net Income (Loss) Attributable to Noncontrolling Interest
Net earnings attributable to noncontrolling interest
Net Income (Loss) Attributable to Noncontrolling Interest, Total
Effects of cross-border tax laws, BEAT
Effects of cross-border tax laws, BEAT
Effective Income Tax Rate Reconciliation, BEAT, Percent
Inventory Disclosure [Abstract]
Debt Instrument, Redemption, Period [Axis]
Debt Instrument, Redemption, Period
Accrued excise taxes
Accrued Excise Taxes
Accrued excise taxes.
Document Type
Document Type
Income taxes (received) paid, net
Income taxes refunded, net of payments
Income taxes refunded, net of payments
Income Taxes Paid, Net
Gross Profit
Margin
Location 1 [Member]
Location One [Member]
Portland Harbor Superfund Site
Subsidiary, Ownership Percentage, Parent
Ownership percentage by parent
Cost of Revenue [Abstract]
Cost of revenue
Equipment on operating leases useful life
Equipment On Operating Leases Useful Life
Equipment on operating leases useful life.
Entity Central Index Key
Entity Central Index Key
Lease railcars for syndication.
Leased Railcars For Syndication Policy Textblock
Leased railcars for syndication
Line of Credit Facility [Table]
Line Of Credit Facility [Table]
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]
Prime Rate [Member]
Prime Rate
Recourse Status [Domain]
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation
Increase (decrease) in cash and cash equivalents and restricted cash
Subsequent Event Type [Domain]
Foreign currency / inflationary effects
Effective Income Tax Rate Reconciliation, Foreign Currency Inflationary Effects, Percent
Effective income tax rate reconciliation, foreign currency inflationary effects, percent.
Debt instruments additional interest rate per annum.
Debt Instruments Additional Interest Rate Per Annum
Debt instruments additional interest rate per annum
Impairment of long-lived assets
Impairment of Long-Lived Assets to be Disposed of
Accounting Standards Update [Domain]
Accounting Standards Update
Operating costs and expenses
Operating Costs and Expenses, Total
Percentage of Debt Hedged by Interest Rate Derivatives
Swap agreement interest rate
Notional covering percentage of outstanding balance
Liabilities [Abstract]
Liabilities
Goodwill [Line Items]
Goodwill [Line Items]
Common Stock Shares Issued Not Disclosed
Common stock shares issued not disclosed.
Equity Excluding Contingently Redeemable Noncontrolling Interest [Member]
Equity Excluding Contingently Redeemable Noncontrolling Interest [Member]
Equity Excluding Contingently Redeemable Noncontrolling Interest
Equity Excluding Contingently Redeemable Noncontrolling Interest
Foreign Tax Jurisdiction, Other [Member]
Other
Other Foreign Jurisdictions:
Convertible Senior Notes April 2028.
Convertible Senior Notes April2028 [Member]
April 2028 Convertible Senior Notes
Deferred Tax Assets, Interest Expense
Deferred tax assets, interest expense.
Interest expense
Parent [Member]
Total Equity - Greenbrier
Document Financial Statement Error Correction [Flag]
GBXL I 2022 Class A Notes [Member]
GBXL I 2022 Class A Notes [Member]
Leasing Asset Backed Term Notes [Member]
Leasing asset-backed term notes.
Leasing GBXL I Asset-backed Term Notes
Debt Instruments [Abstract]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Debt Disclosure [Abstract]
Derivative [Table]
Derivative [Table]
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities
Settlements
Settlements
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for doubtful accounts
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income
Estimate of Fair Value Measurement [Member]
Estimate of Fair Value, Fair Value Disclosure
O 2023 A dividends.
O 2023 A Dividends [Member]
O2023 A Dividends
Derivative, Notional Amount
Aggregate derivative notional amount
Cost of Sales [Member]
Cost of Sales
Ownership [Domain]
Ownership
Current Fiscal Year End Date
Current Fiscal Year End Date
Schedule of Long-Term Debt Instruments [Table]
Debt Instrument [Table]
Senior Term Debt [Member]
Senior Term Debt [Member]
Corporate Senior Term Debt
Schedule of Product Warranty Liability [Table Text Block]
Warranty Accrual Activity
Effective Income Tax Rate Reconciliation, U S Branch Income, Percent
Effective income tax rate reconciliation, U S branch income, percent.
Effects of cross-border tax laws, U.S. branch income
Noncontrolling Interest Adjustments
Noncontrolling Interest Adjustments
Noncontrolling interest adjustments
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures
Carrying amount of investment in unconsolidated affiliates
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Total
Deposit amount
Loss Contingency Deposit Amount
Loss contingency deposit amount.
Management services.
Management Services [Member]
Management services
Delayed Draw Facility [Member]
Delayed Draw Facility.
Delayed Draw Facility
CALIFORNIA
California
Other Accrued Liabilities
Other accrued liabilities
Convertible Notes Payable
Convertible senior notes
Convertible Notes Payable, Total
Customer Relationships [Member]
Customer Relationships
Fair Value, by Balance Sheet Grouping [Table]
Fair Value By Balance Sheet Grouping [Table]
Entity Address, State or Province
Entity Address, State or Province
Beginning Balance
Ending Balance
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Share based compensation, non vested shares
Joint venture partner distribution declared
Joint Venture Partner Distribution Declared
Joint venture partner distribution declared
Guarantees and Product Warranties [Abstract]
Investment, Name [Domain]
Investment, Name
Preferred Stock, Shares Outstanding
Preferred stock, outstanding
Preferred Stock, Shares Outstanding, Beginning Balance
Preferred Stock, Shares Outstanding, Ending Balance
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Comprehensive income attributable to Greenbrier
Research and Development Expense, Policy [Policy Text Block]
Research and development
Common Stock, Capital Shares Reserved for Future Issuance
Number of shares reserved
Number of shares reserved for future issuance
Income Tax Reconciliation, Interest on Tax Refunds, Amount
Income tax reconciliation, interest on tax refunds, amount.
Other reconciling items, Interest on tax refunds
Leased Railcars for Syndication, at Carrying Value
Leased Railcars For Syndication At Carrying Value
Leased railcars for syndication
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements
Dilutive effect of restricted stock units
Risks and Uncertainties [Abstract]
Geographical [Axis]
Geographical
Contract with Customer, Liability, Revenue Recognized
Revenue recognized from contract with customers liability
Revenue recognized with railcars sold out of leasing warehouse
Revenue Recognized With Railcars Sold Out Of Leasing Warehouse
Revenue recognized with railcars sold out of leasing warehouse.
Accounts Receivable [Member]
Accounts Receivable
Stockholders' Equity Attributable to Noncontrolling Interest, Total
Equity, Attributable to Noncontrolling Interest
Noncontrolling interest
Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance
Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance
Lease Commitments
Lease Commitments [Text Block]
Lease Commitments
Fleet Management [Member]
Fleet management.
Fleet management
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
State and local income taxes, net of federal benefit
Leasing and management services.
Leasing and Management Services [Member]
Leasing & Management Services
Nontaxable or nondeductible Items, Other
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Tax Effects of Temporary Differences that give rise to Significant Portions of Deferred Tax Assets and Deferred Tax Liabilities
GBXL I Series 2026-1 Class B Secured Railcar Equipment Notes [Member]
GBXL I Series 2026-1 Class B Secured Railcar Equipment Notes
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other comprehensive income (loss)
Income Loss From Continuing Operations After Income Taxes And Before Equity In Earnings Of Unconsolidated Affiliates
Income Loss From Continuing Operations After Income Taxes And Before Equity In Earnings Of Unconsolidated Affiliates
Earnings before earnings from unconsolidated affiliates
Subsequent Event [Member]
Subsequent Event
Unvested Restricted Stock Grants [Member]
Unvested Restricted Stock Grants [Member]
Unvested Restricted Stock Grants
Leasing Warehouse Credit Facility [Member]
Leasing warehouse credit facility.
Leasing Warehouse Credit Facility
Property, Plant and Equipment [Abstract]
Greenbrier Astra Rail B.V. [Member]
Greenbrier Astra Rail B.V. [Member]
Greenbrier-Astra Rail B.V.
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net
Debt discount and issuance costs
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net, Total
Deferred Tax Assets, Inventory
Inventories and other
Proceeds from Short-Term Debt, Maturing in More than Three Months
Proceeds from debt with maturities longer than 90 days
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards [Line Items]
U.S. tax on foreign earnings
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent
Amsted-Maxion Cruzeiro.
Amstedmaxion Cruzeiro [Member]
Amsted-Maxion Cruzeiro
Feasibility and Evaluation Costs
Feasibility And Evaluation Costs
Remedial investigation and feasibility study
Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]
Intangible and other assets, net
Income Tax Paid, Foreign, after Refund Received
Income Tax Paid, Foreign, after Refund Received, Total
Foreign
Corporate Senior Term Debt {Member]
Corporate senior term debt.
Corporate Senior Term Debt
Related Party Transaction [Axis]
Related Party Transaction
Accumulated Other Comprehensive (Loss)
AOCL
Accumulated Other Comprehensive Loss
Customer
Customer [Domain]
Derivative Liability
Derivative financial instruments
Liability Derivatives
Derivative Liability, Total
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name
Goodwill impairment
Goodwill, Impairment Loss
Allowance For Doubtful Accounts Translation Adjustment
Currency translation effect
Allowance for Doubtful Accounts, Currency Translation Effect
Two thousand twenty one stock incentive plan and two thousand seventeen amended and restated stock incentive plan.
Two Thousand Twenty One Stock Incentive Plan And Two Thousand Seventeen Amended And Restated Stock Incentive Plan [Member]
2021 Stock Incentive Plan and 2017 Amended and Restated Stock Incentive Plan
Lessee, Operating Lease, Option to Extend
Operating lease option to extend
Net Income Loss Before Interest And Debt Issuance Costs On Convertible Debt
Net income (loss) before interest and debt issuance costs on convertible debt.
Earnings before interest and debt issuance costs on the 2.875% convertible notes due 2024
Preferred Stock, Value, Issued
Preferred stock - without par value; 25,000 shares authorized; none outstanding
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred
Selling, General and Administrative Expense
Selling and administrative
Selling, General and Administrative Expense, Total
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income
Debt Instrument, Maturity Date
Debt instrument, maturity date
Two point eight seven five convertible senior notes due 2028.
Two Point Eight Seven Five Convertible Senior Notes Due2028 [Member]
2.875% Convertible senior notes, due 2028
2.875% Convertible senior notes, due 2028
Effective Income Tax Rate Reconciliation, U S Branch Income, Amount
Effective income tax rate reconciliation, U S branch income, amount
Effects of cross-border tax laws, U.S. branch income
Recourse [Member]
Recourse
O 2024 A dividends.
O 2024 A Dividends [Member]
O2024 A Dividends
Minimum [Member]
Minimum
Granted
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Railcar Maintenance
Railcar Maintenance [Member]
Railcar maintenance.
SEC Schedule, 12-09, Valuation Allowances and Reserves, Increase (Decrease) Adjustment
Currency translation effect
Amortization of Intangible Assets
Amortization expense
Fair Value, Inputs, Level 3 [Member]
Fair Value, Inputs, Level 3
Operating loss carryforwards, not subject to expiration.
Operating Loss Carryforwards Not Subject To Expiration
Net operating loss carryforwards that do not expire
Liabilities, Fair Value Disclosure [Abstract]
Liabilities:
GBXL I Series 2023-1 Class A secured railcar equipment notes.
GBXL I Series 2023-1 Class A Secured Railcar Equipment Notes [Member]
GBXL I Series 2023-1 Class A Secured Railcar Equipment Notes
Segment Reporting [Abstract]
Deferred Tax Liabilities, Property, Plant and Equipment
Fixed assets
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Assets and Liabilities Measured at Fair Value on Recurring Basis
Accrued interest related to unrecognized tax benefits
Unrecognized Tax Benefits, Interest on Income Taxes Accrued
Related Party Transactions [Abstract]
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities
Accrued liabilities
Operating Loss Carryforwards
Operating loss carryforwards
Undiscounted costs for remedial alternatives.
Undiscounted Costs For Remedial Alternatives
Estimated undiscounted cost
Initial TSR
Share-based Compensation Arrangement by Share-based Payment Award Fair Value Assumptions Initial Shareholder Return
Share-based compensation arrangement by share-based payment award fair value assumptions initial shareholder return.
Accounts Payable and Accrued Liabilities
Accounts Payable and Accrued Liabilities [Member]
Restricted Cash and Cash Equivalent
Restricted cash
Restricted Cash and Cash Equivalents, Total
Two Point Two Five Convertible Senior Notes Due 2024
Two Point Two Five Convertible Senior Notes Due2024 [Member]
2.25% Convertible senior notes, due 2024
2.25% Convertible Notes Due 2024
Commitments and contingencies (Notes 18 & 19)
Commitments and Contingencies
SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]
SEC Schedule, 12-09, Valuation Allowances and Reserves
Increase in convertible note due to due to derecognition of debt discount.
Increase In Convertible Note Due To Derecognition Of Debt Discount
Increase in convertible note due to derecognition of debt discount
Ending Balance
Beginning Balance
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Reclassification out of Accumulated Other Comprehensive Income [Table]
Reclassification Out Of Accumulated Other Comprehensive Income [Table]
Inventory, Work in Process, Gross
Work-in-process
Operating Lease, Liability
Operating lease liability
Operating Lease, Liability, Total
Operating lease liabilities
Intangible Assets, Net And Other Assets (Excluding Goodwill)
Intangible Assets Net And Other Assets Excluding Goodwill
Intangibles and other assets, net
Total Intangible and other assets, net
Auditor Firm ID
Restricted stock grant fair value.
Restricted Stock Granted Value
Fair value of awards granted
Debt instrument, percentage points added to the reference rate
Debt instrument, percentage of debt principal balance hedged
Debt Instrument, Basis Spread on Variable Rate
Common Stock, No Par Value
Common stock, without par value
Schedule of Goodwill [Table Text Block]
Schedule of Changes in Carrying Value of Goodwill
Cash Flow, Operating Activities, Lessee [Abstract]
Inventory, Raw Materials and Supplies, Gross
Manufacturing supplies and raw materials
Inventory, Raw Materials and Supplies, Gross, Total
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark
Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract]
Cash flows from financing activities
2028
Long-Term Debt, Maturity, Year Two
Repayments of revolving notes in 2026
Line of Credit Facilities
Line Of Credit Facilities [Text Block]
Revolving Notes
Number Of Sediment Decision Units
Number Of Sediment Decision Units
Number of sediment decision units
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent
Change in valuation allowance
Lessor and lessee lease, description.
Lessor And Lessee Lease Description [Table]
Lessor And Lessee Lease Description [Table]
Fair value of long-lived assets
Long-Lived Asset, Held-for-Sale, Fair Value Disclosure
Capital Expenditures Incurred but Not yet Paid
Capital expenditures accrued in Accounts payable and accrued liabilities
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Net earnings
Net earnings
Lease Contractual Term [Domain]
Lease Contractual Term
Note receivable
Financing Receivable, before Allowance for Credit Loss
Financing Receivable, before Allowance for Credit Loss, Total
Accounts payable and accrued liabilities associated with cash distributions to joint venture partner
Accounts Payable And Accrued Liabilities Associated With Cash Distributions To Joint Venture Partner
Change in Accounts payable and accrued liabilities associated with cash distributions to joint venture partner
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Other Item
Other
Long-Term Debt, Type [Domain]
Long-term Debt, Type
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]
Weighted Average Number of Shares Outstanding, Basic
Basic
Weighted average basic common shares outstanding
Weighted Average Number of Shares Outstanding, Basic, Total
Other
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Reconciliation Between Effective and Statutory Tax Rates on Operations
Deferred Tax Liabilities, Leasing Arrangements
Right-of-use asset
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Segments [Axis]
Segments
Long-Lived Tangible Asset [Domain]
Long-Lived Tangible Asset
Percentage of weighted peer group TSR
Percentage of Weighted Relative Shareholder Return
Percentage of weighted relative shareholder return.
O 2025 A Dividends [Member]
O 2025 A dividends.
O2025 A Dividends
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]
Long-Term Debt
Debt, net
Debt, net
Related Party Transactions Disclosure [Text Block]
Related Party Transactions
European Debt [Member]
European Debt
European Debt
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition, Total
Stock based compensation expense
Variable Rate [Domain]
Variable Rate
Percentage Of Provisions For Bonus Depreciation On Assets
Percentage of provisions for bonus depreciation on assets.
Percentage of provisions for bonus depreciation on assets
Equipment on operating leases policy text block.
Equipment On Operating Leases Policy Textblock
Equipment on operating leases, net
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount
Change in valuation allowance
Equity, Attributable to Parent
Ending balance
Beginning balance
Total equity - Greenbrier
Effective Income Tax Rate Reconciliation, Foreign Tax Effects, Nondeductible Expense, Amount
Effective income tax rate reconciliation, foreign tax effects, nondeductible expense, amount.
Nondeductible compensation
Statement of Stockholders' Equity [Abstract]
Equity Method Investments
Investment in unconsolidated affiliates
Revenue Other
Revenue Other [Member]
Other
Increase (Decrease) in Operating Assets [Abstract]
Decrease (increase) in assets:
Management estimates
Use of Estimates, Policy [Policy Text Block]
LIBOR
London Inter bank Offered Rate [Member]
London Inter bank Offered Rate [Member]
Balance Sheet Reconciliation [Abstract]
Balance Sheet Reconciliation [Abstract]
Balance Sheet Reconciliation
2031
Long-Term Debt, Maturity, Year Five
Performance-Based Restricted Stock Units
Performance Based Restricted Stock Units [Member]
Performance based restricted stock units.
Gain (Loss), Foreign Currency Transaction, before Tax
Foreign Currency Transaction Gain (Loss), before Tax, Total
Foreign exchange (gain) loss, net
Derecognition of deferred tax liabilities.
Derecognition of Deferred Tax Liabilities
Derecognition of deferred tax liabilities
OCI, before Reclassifications, Net of Tax, Attributable to Parent
Other comprehensive income (loss) before reclassifications
Entity Address, Address Line Two
Entity Address, Address Line Two
Fair Value Disclosures [Text Block]
Fair Value Measures
Interest and Foreign Exchange.
Interest And Foreign Exchange Policy Textblock
Interest and foreign exchange
NETHERLANDS
Netherlands
U.S.
UNITED STATES
UNITED STATES
Noncontrolling Interest [Member]
Noncontrolling Interest
Inventories [Member]
Inventories
Inventories
Contract with customer asset and liability Line items.
Contract With Customer Asset And Liability [Line Items]
Contract With Customer Asset And Liability [Line Items]
Debt Instrument, Name [Domain]
Debt Instrument, Name
Foreign line of credit four.
Foreign Line of Credit Four [Member]
Mexican Railcar Manufacturing Joint Venture Line of Credit, 4 Component of Senior Secured Credit Facilities
Income (Loss) from Equity Method Investments
Earnings from unconsolidated affiliates
Earnings from unconsolidated affiliates
2030
Long-Term Debt, Maturity, Year Four
Prepaid Expense and Other Assets
Prepaid and other assets
Inventory, Current [Table]
Inventory Current [Table]
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
Unrecognized Tax Benefits
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Sustainable conversions
Sustainable Conversions [Member]
Sustainable conversions.
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]
Car Hire Utilization Arrangements Member.
Car Hire Utilization Arrangements [Member]
Car Hire Utilization Arrangements
Plan Name [Domain]
Plan Name
Increase (Decrease) in Other Operating Assets
Other assets
Increase (Decrease) in Other Operating Assets, Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Temporary Equity, Including Noncontrolling Interest
Ending Balance
Beginning balance
Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests, Total
Credit Facility [Axis]
Credit Facility
Percentage of ownership in entity
Equity Method Investment, Ownership Percentage
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block]
Other Accumulated Other Comprehensive Income [Member]
Other Accumulated Other Comprehensive Income [Member]
Other
Impairment, Long-Lived Asset, Held-for-Use
Impairment of long-lived assets
Impairment, Long-Lived Asset, Held-for-Use, Total
Current State and Local Tax Expense (Benefit)
State
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]
2028
Lessor, Operating Lease, Payment to be Received, Year Two
Schedule of Line of Credit Facilities [Table Text Block]
Schedule of Credit Facility Balances
Restricted Stock, Shares Issued Net of Shares for Tax Withholdings
Restricted stock shares issued net of shares for tax withholdings
Related Party
Related and Nonrelated Parties [Axis]
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
Other reconciling items, Other
Greenbrier Astra rail.
Greenbrier Astra Rail [Member]
Greenbrier-Astra Rail
Property, Plant and Equipment, Policy [Policy Text Block]
Property, plant and equipment
Accounting Standards Update [Extensible Enumeration]
Accounting Standards Update [Extensible List]
Foreign Exchange Contract [Member]
Foreign Exchange Contracts
Entity Address, City or Town
Entity Address, City or Town
Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table Text Block]
Approach to Calculate Diluted Earnings per Share
Number of shares repurchased
Stock Repurchased During Period, Shares
Repurchase of stock (in shares)
Stockholders Equity Note [Table]
Stockholders Equity Note [Table]
Stockholders Equity Note [Table]
Number of Reportable Segments
Number of reportable segments
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Payroll and Related Liabilities
Deferred tax assets, tax deferred expense, reserves and accruals, accrued payroll and related liabilities.
Accrued payroll and related liabilities
Security Exchange Name
Security Exchange Name
Credit Facility [Domain]
Credit Facility
European
Europe [Member]
Europe
Indefinite-Lived Intangible Assets (Excluding Goodwill)
Intangible assets not subject to amortization
Indefinite-Lived Intangible Assets (Excluding Goodwill), Total
Indefinite-Lived Intangible Assets (Excluding Goodwill), Beginning Balance
Indefinite-Lived Intangible Assets (Excluding Goodwill), Ending Balance
Redeemable Noncontrolling Interest, Equity, Carrying Amount
Contingently redeemable noncontrolling interest
Redeemable Noncontrolling Interest, Equity, Carrying Amount, Total
Share repurchase program, current authorization of shares purchased
Share Repurchase Program, Current Authorization Of Shares Purchased
Share Repurchase Program, Current Authorization Of Shares Purchased
Stock repurchased authorized amount
Long-Term Debt, Gross
Debt instrument amount outstanding
Notes payable, gross
Debt, gross
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent
Other adjustments, Other
Property, Plant and Equipment, Gross
Property plant and equipment
Property, Plant and Equipment, Gross, Total
Property, Plant and Equipment, Gross, Beginning Balance
Property, Plant and Equipment, Gross, Ending Balance
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current
Intersegment Eliminations [Member]
Intersegment Eliminations
Intangible Assets Disclosure [Text Block]
Intangibles and Other Assets, net
Monitoring Action Time Frame
Monitoring Action Time Frame
Period for monitoring
Concentration Risk Type [Domain]
Concentration Risk Type
Net gain on disposition of equipment
Net loss (gain) on disposition of equipment
Gain (Loss) on Disposition of Other Assets
Line of Credit Maturity Month and Year
Line Of Credit Maturity Month And Year
Line of credit maturity date
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]
Impairment of long-lived assets
Senior secured credit facility, revolving line of credit, component three.
Senior Secured Credit Facility Revolving Line Of Credit Component Three [Member]
Mexican Railcar Manufacturing Operations Line of Credit 3, 3rd Component of Senior Secured Credit Facilities
Foreign operations, Statutory tax rate difference
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent
Stockholders' Equity Note [Abstract]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax
Gain (loss) recognized in OCI on derivatives
Accrual amount
Loss Contingency, Loss in Period
Inventory, Net
Inventories
Inventories
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Cash and cash equivalents and restricted cash, Ending balance
Cash and cash equivalents and restricted cash, Beginning balance
Total cash and cash equivalents and restricted cash as presented above
Foreign [Member]
Foreign [Member]
Foreign
Accounts Payable and Accrued Liabilities
Accounts payable and accrued liabilities
Accounts payable and accrued liabilities
Interest Paid, Excluding Capitalized Interest, Operating Activity
Interest
Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member]
Unrealized Gain (Loss) on Derivative Financial Instruments
Unrealized (Gain) Loss on Derivative Financial Instruments
Measurement Basis [Axis]
Measurement Basis
Statistical Measurement [Domain]
Statistical Measurement
Mexican
MEXICO
Mexico
Summary of Estimated Revenue Related to Performance Obligations Wholly or Partially Unsatisfied
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]
Document Period End Date
Document Period End Date
Debt instrument maturity month and year.
Debt Instrument Maturity Month And Year
Debt instrument, maturity month and year
Two thousand twenty six term loan.
Two Thousand Twenty Six Term Loan [Member]
2026 Term Loan
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV
Number of Debt Instrument
Number Of Debt Instrument
Number of lines of credits
Leasing And Fleet Management [Member]
Leasing and fleet management member.
Leasing & Fleet Management
ICFR Auditor Attestation Flag
ICFR Auditor Attestation Flag
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax
Translation adjustment
Tabular disclosure of additional information relating to lease.
Additional Information Relating To Lease Table [Text Block]
Additional Information Related to Company's Leases
Statement of Financial Position [Abstract]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Cumulative Effect Adjustment Due to Adoption
Revenue recognition
Revenue [Policy Text Block]
Senior Secured Credit Facilities
Line of Credit [Member]
Revolving Notes
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification out of Accumulated Other Comprehensive loss
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract]
Cash and cash equivalents and restricted cash
Wheels & parts reporting unit.
Wheels & Parts Reporting Unit [Member]
Wheels & Parts
Deferred Tax Liabilities, Net
Net deferred tax liability
Deferred Tax Liabilities, Net, Total
Asset backed securities.
Asset Backed Securities [Text Block]
Asset Backed Securities
Effective Income Tax Rate Reconciliation, Withholding Tax, Percent
Effective income tax rate reconciliation, withholding tax, percent.
Withholding tax
Current Income Tax Expense (Benefit)
Current Income Tax Expense (Benefit), Total
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Effective Income Tax Rate Reconciliation, Interest on Tax Refunds, Percent
Effective income tax rate reconciliation, interest on tax refunds, percent.
Other adjustments, Interest on tax refunds
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Not Designated as Hedging Instrument [Member]
Not Designated as Hedging Instrument
Two thousand twenty seven term loan.
Two Thousand Twenty Seven Term Loan [Member]
2027 Term Loan
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives Balance Sheet Location By Derivative Contract Type By Hedging Designation [Table]
Loss Contingency, Estimate of Possible Loss
Loss contingency, estimates possible loss
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount
Statutory tax rate difference
Derivative Liability, Statement of Financial Position [Extensible Enumeration]
2028
Lessee, Operating Lease, Liability, to be Paid, Year Two
Interest and Foreign Exchange.
Interest And Foreign Exchange Table [Text Block]
Interest and Foreign Exchange
Percentage of deferred revenue and margin from sale.
Percentage Of Deferred Revenue And Margin From Sale
Percentage of deferred revenue and margin from sale
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) [Line Items]
Two thousand twenty eight convertible senior notes.
Two Thousand Twenty Eight Convertible Senior Notes [Member]
2028 Convertible Senior Notes
Debt Instrument, Redemption Period, Start Date
Debt instrument redemption start date
Restricted Stock [Member]
Restricted Stock
GBXL I 2022 Class B Notes [Member]
GBXL I 2022 Class B Notes [Member]
Variable Rate
Variable Rate [Axis]
Long-Term Debt, Description
Description of long term debt
Finite-Lived Intangible Assets, Gross
Finite lived intangible assets gross
Finite-Lived Intangible Assets, Gross, Total
Earnings Per Share Disclosure [Table]
Earnings Per Share Disclosure [Table]
Earnings Per Share Disclosure [Table]
Weighted Average Number of Shares Outstanding, Diluted
Diluted
Weighted average diluted common shares outstanding
Weighted average diluted common shares outstanding
Securities Act File Number
Entity File Number
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent
Other
Interest and Other Expense, Nonoperating
Interest And Other Expense Nonoperating
Interest and other expense
Interest and other expense, net
Derivative Instruments, Gain (Loss) [Table Text Block]
Effect of Derivative Instruments on Accumulated Other Comprehensive Loss and Statements of Income
Cover [Abstract]
Asset impairment, disposal, and exit costs, net
Asset impairment disposal and exit costs net
Asset Impairment Disposal And Exit Costs Net
Asset impairment disposal and exit costs net.
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Accounts payable and accrued liabilities
Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total
Impaired Long-Lived Asset, Held and Used [Table]
Cumulative Effect, Period of Adoption [Axis]
Cumulative Effect, Period of Adoption
Derivative Instruments Gain (Loss) Reclassified from Accumulated OCI Into Income, Net
Derivative instruments gain (loss) reclassified from accumulated oci into income, net.
Gain (loss) reclassified from AOCL
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Forfeited
Share Repurchase Program Two Thousand And Fourteen [Member]
Share Repurchase Program Two Thousand And Fourteen [Member]
Share Repurchase Program - 2014
Interest in joint venture
Minority Ownership Interest Percentage By Noncontrolling Owners
Minority ownership interest percentage by noncontrolling owners.
Derivative, Gain (Loss) on Derivative, Net
Gain (loss) recognized in income on derivatives
Derivative, Gain (Loss) on Derivative, Net, Total
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Total before tax
Earnings before income tax and earnings from unconsolidated affiliates
Revenue Benchmark [Member]
Sales Revenue, Net
GBXL I Series 2026-1 Class A Secured Railcar Equipment Notes [Member]
GBXL I Series 2026-1 Class A Secured Railcar Equipment Notes
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized
Number of shares authorized
Segment Information
Segment Reporting Disclosure [Text Block]
Tax Jurisdiction of Domicile [Extensible Enumeration]
Operating Lease Remaining Lease Term.
Operating Lease Remaining Lease Term
Opreating lease remaining lease term
Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract]
Cash flows from operating activities
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Corporate, Non-Segment
Corporate
Share Repurchase Program, Expiration Date
Repurchase program expiration date
Share repurchase program expiration date
Finite-Lived Intangible Assets, Net
Finite-Lived Intangible Assets, Net, Total
Finite-Lived Intangible Assets, Net, Beginning Balance
Finite-Lived Intangible Assets, Net, Ending Balance
Debt Instrument, Convertible, Conversion Price
Convertible notes conversion rate, per share
Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract]
Cash flows from investing activities
Product Warranty Disclosure [Text Block]
Warranty Accrual
Gain (Loss) on Extinguishment of Debt
Net loss on extinguishment of debt
Gain (Loss) on Extinguishment of Debt, Total
Accounts Receivable Net.
Accounts Receivable Net [Member]
Accounts Receivable, Net
Accounts Receivable, Net
Senior Secured Credit Facility Revolving Line Of Credit Component Two [Member]
Senior Secured Credit Facility Revolving Line Of Credit Component Two [Member]
Mexican Railcar Manufacturing Operations Line of Credit 2, 3rd Component of Senior Secured Credit Facilities
Earnings Per Share Disclosure [Line Items]
Earnings Per Share Disclosure [Line Items]
Earnings Per Share Disclosure [Line Items]
Dividends Declared And Accrued In Accounts Payable And Accrued Liabilities
Dividends Declared And Accrued In Accounts Payable And Accrued Liabilities
Change in Accounts payable and accrued liabilities associated with dividends declared
Property, Plant and Equipment, Useful Life
Property, Plant and Equipment useful life
Amount of increase (decrease) in deferred revenue.
Increase Decrease In Deferred Revenue Policy [Text Block]
Deferred revenue
New Accounting Pronouncements, Policy [Policy Text Block]
Recently Adopted and Issued Accounting Pronouncements
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]
Aggregate Minimum Future Amounts Payable Under Operating Leases
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Percent
Tax credits, Foreign tax credits
Tax credits, Foreign tax credits
Derivative Instruments, Gain (Loss) [Table]
Derivative Instruments Gain Loss By Hedging Relationship By Income Statement Location By Derivative Instrument Risk [Table]
O 2026 A Dividends [Member]
O 2026 A Dividends.
O2026 A Dividends
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent
Nontaxable or nondeductible Items, Other
Ownership [Axis]
Ownership
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period
Vesting period of compensation expense
Other Capitalized Property Plant and Equipment [Member]
Other
Senior Secured Credit Facility Revolving Line Of Credit Component One [Member]
Senior Secured Credit Facility Revolving Line Of Credit Component One [Member]
Mexican Railcar Manufacturing Operations Line of Credit 1, 3rd Component of Senior Secured Credit Facilities
Line of credit facility increase (decrease) in maximum borrowing capacity.
Line Of Credit Facility Increase Decrease In Maximum Borrowing Capacity
Warehouse Credit Facility Reduces
Debt Instrument, Redemption, Description
Debt instrument redemption description
Income Tax Reconciliation, Withholding Tax Amount
Income tax reconciliation, withholding tax amount.
Withholding tax
Domestic
Income (Loss) from Continuing Operations before Income Taxes, Domestic
Income tax and earnings from unconsolidated affiliates,Domestic u.s. operations
Amount
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Depreciation
Depreciation expense
Depreciation, Total
Greenbrier Railcar Funding I LLC.
Greenbrier Railcar Funding I L L C [Member]
Greenbrier Railcar Funding I LLC
Reported Value Measurement [Member]
Carrying (Reported) Amount, Fair Value Disclosure
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount
Unamortized compensation cost of restricted stock unit grants
Balance at end of period
Balance at beginning of period
Excess and obsolete adjustment
FIFO Inventory Amount
Share repurchase program, current authorization of shares purchased amount
Share Repurchase Program, Current Authorization Of Shares Purchased Amount
Share Repurchase Program, Current Authorization Of Shares Purchased Amount
Common Stock, Shares, Outstanding
Ending Balance (in shares)
Beginning balance (in shares)
Common stock, shares outstanding
Depreciation, Depletion and Amortization
Depreciation and amortization
Depreciation, Depletion and Amortization, Total
Revenue, Remaining Performance Obligation, Amount
Revenue type 1
Expected revenue to be recognized
Dividends [Domain]
Cybersecurity Risk Management Processes Integrated [Flag]
Customer And Supplier Relationships
Customer And Supplier Relationships [Member]
Customer and supplier relationships
Document Transition Report
Document Transition Report
Allowance for Doubtful Accounts, Additions Net of Reversals
Allowance For Doubtful Accounts Provisions Net Of Reversals
Additions, net of reversals
Lessor and lessee lease, description.
Lessor And Lessee Lease Description [Line Items]
Lessor and Lessee, Lease, Description [Line Items]
Research and Development Expense
Research and development
Research and Development Expense, Total
Cost of Revenue
Cost of revenue
Cost of Revenue, Total
Payments for Repurchase of Common Stock
Repurchase of stock, including excise tax
Litigation Status [Axis]
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Components of Income Tax Expense of Continuing Operations
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Comprehensive income
Statement of Cash Flows [Abstract]
GBXL I 2023 Class A Notes [Member]
GBXL I 2023 Class A Notes [Member]
Proceeds from (Repayments of) Short-Term Debt, Maturing in Three Months or Less
Proceeds from (Repayments of) Short-Term Debt, Maturing in Three Months or Less, Total
Net changes in debt with maturities of 90 days or less
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Current Federal Tax Expense (Benefit)
Federal
Assets, Fair Value Disclosure [Abstract]
Assets:
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Percent
Nontaxable or nondeductible Items, Stock based compensation
Derivative Asset, Statement of Financial Position [Extensible Enumeration]
Interest Rate Swap [Member]
Interest Rate Swap Contracts
Equity [Text Block]
Equity
Restricted Stock or Unit Expense
Restricted stock compensation expense
Earnings Per Share [Text Block]
Earnings Per Share
SEC Schedule, 12-09, Valuation Allowances and Reserves, Period Increase (Decrease), Total
SEC Schedule, 12-09, Valuation Allowances and Reserves, Period Increase (Decrease)
Net increase (decrease) in the valuation allowance
Summary of Restricted Stock Share and Restricted Stock Unit Grants
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
Other
Deferred Tax Liabilities, Other
Cybersecurity Risk Management Processes Integrated [Text Block]
Net earnings attributable to Greenbrier
Net earnings attributable to Greenbrier
Increase (Decrease) in Inventories
Inventories
Increase (Decrease) in Inventories, Total
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid
Balloon payment
Operating Lease, Cost
Operating lease expense
Payments of Distributions to Affiliates
Dividends paid to joint venture partner
Cash distribution to joint venture partner
Income Taxes Receivable, Current
Income tax receivable
Line of Credit, Guaranteed Amount
Line of credit, guaranteed amount.
Line of credit, guaranteed amount
Accounts Receivable, Allowance for Credit Loss [Table Text Block]
Allowance for Credit Losses
Line of Credit Facility [Line Items]
Line of Credit Facility [Line Items]
Contract with customer asset and liability.
Contract With Customer Asset And Liability [Table]
Contract With Customer Asset And Liability [Table]
Operating Lease, Payments
Operating cash flows from operating leases
Derivatives, Fair Value [Line Items]
Derivatives Fair Value [Line Items]
Assets [Abstract]
Assets
Risk-free rate of return
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Construction in Progress [Member]
Construction in Progress
GBXL I Series 2023-1 Class B secured railcar equipment notes.
GBXL I Series 2023-1 Class B Secured Railcar Equipment Notes [Member]
GBXL I Series 2023-1 Class B Secured Railcar Equipment Notes
Document Fiscal Year Focus
Document Fiscal Year Focus
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Components of Accumulated Other Comprehensive Loss, Net of Tax
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Expected revenue to be recognized period
Deferred Income Tax Expense Benefit Gross
Deferred Income Tax Expense Benefit Gross
Total Deferred Income Tax Expense (Benefit)
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations
Lapse of statute of limitations
Schedule of Components of Income From Continuing Operations Before Income Taxes
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
2027
Lessor, Operating Lease, Payment to be Received, Year One
Accounting Standards Update 2019-12 [Member]
ASU 2019-12
Time Based Restricted Stock Units [Member]
Time based restricted stock units.
Time-Based Restricted Stock Units
Restricted cash
Restricted Cash [Policy Text Block]
Restricted cash.
Gain (loss) on sale
Gain (loss) on sale
Gain (Loss) on Disposition of Business
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
Summary of Contract Balances
Deferred Federal Income Tax Expense (Benefit)
Federal
Deferred Revenue
Deferred revenue
Deferred Revenue, Total
Greenbrier-Maxion
Ownership Percentage in Greenbrier Maxion [Member]
Ownership percentage in Greenbrier Maxion.
Future amortization expense, 2027
Finite-Lived Intangible Asset, Expected Amortization, Year One
Debt Conversion, Converted Instrument, Amount
Debt instrument, convertible, principal amount
Pending Litigation [Member]
Pending Litigation
Debt Instrument, Convertible, Latest Date
Debt instrument, convertible, latest date
Carrying value of long-lived assets
Asset, Held-for-Sale, Not Part of Disposal Group
Asset, Held-for-Sale, Not Part of Disposal Group, Total
Accounting Standards Update 2020-06 [Member]
Accounting Standards Update 2020-06
ASU 2020-06
Accuracy Of Cost Estimate
Accuracy Of Cost Estimate
Accuracy of cost estimate
Fair Value Disclosures [Abstract]
Debt Instrument, Redemption Period, End Date
Debt instrument redemption end date
Commitments and Contingencies Disclosure [Abstract]
Canada
CANADA
North American
North America [Member]
North America
2027
Lessee, Operating Lease, Liability, to be Paid, Year One
Percentage of recognized revenue and margin from sale.
Percentage Of Recognized Revenue And Margin From Sale
Percentage of recognized revenue and margin from sale
Divestitures
Divestitures [Text Block]
Divestitures.
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration]
Standard Product Warranty, Policy [Policy Text Block]
Warranty accruals
Effective Income Tax Rate Reconciliation [Line Items]
Long-term line of credit
Revolving notes
Long-Term Line of Credit, Total
Credit facilities
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Warranty Reserves
Maintenance and warranty accruals
Debt Instrument [Axis]
Debt Instrument
Derivative Instrument [Axis]
Derivative Instrument
Lessee, Operating Lease, Liability, to be Paid, after Year Five
Thereafter
Two Thousand Twenty Two GBXL Notes [Member]
Two Thousand Twenty Two GBXL Notes [Member]
2022 GBXL Notes
Assets, Fair Value Disclosure
Assets, Fair Value Disclosure, Total
Deferred Tax Liabilities, Intangible Assets
Intangibles
Derivatives, Policy [Policy Text Block]
Derivatives
Increase (Decrease) in Operating Liabilities [Abstract]
Increase (decrease) in liabilities:
Concentration Risk, Percentage
Concentration risk, percentage
Debt Instrument, Fair Value Disclosure
Debt Instrument, Fair Value Disclosure, Total
Debt
Revenues
Revenue
Total consolidated revenues
Increase (Decrease) in Income Taxes Receivable
Income tax receivable
Grupo Industrial Monclova, S A [Member]
Grupo Industrial Monclova S A [Member]
GIMSA
Net cash used in investing activities
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Incremental Shares Earned Awarded to Participants based on Earnings before Interest Taxes Depreciation and Amortization Criteria for Performance in Period
Incremental shares earned awarded to participants based on earnings before interest, taxes, depreciation and amortization criteria for performance in period.
Incremental shares earned for performance awarded to participants based on EBITDA criteria
Repayments of Short-Term Debt, Maturing in More than Three Months
Repayments of debt with maturities longer than 90 days
Title of 12(b) Security
Title of 12(b) Security
Schedule of Segment Reporting Information, by Segment [Table]
Schedule Of Segment Reporting Information By Segment [Table]
Employee-related Liabilities
Accrued payroll and related liabilities
Employee-related Liabilities, Total
Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Percent
Noncontrolling interest in flow-through entity
Noncontrolling interest in flow-through entity
Nontaxable or nondeductible Items, Stock based compensation
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Derivative Instruments
Share Repurchase Program, Remaining Authorized, Amount
Remaining authorized repurchase amount
Income Tax Paid, by Individual Jurisdiction [Table]
Forfeited
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Related Party
Related and Nonrelated Parties [Domain]
Long-Term Debt, Maturity, after Year Five
Thereafter
Income Tax Disclosure [Text Block]
Income Taxes
GBXL I Series 2022-1 Notes.
GBXL I Series 2022-1 Notes [Member]
GBXL I Series 2022-1 Notes
Increase (decrease) in contract with customer asset inventories.
Increase (Decrease) in Contract with Customer Asset Inventories
Change in contract assets, inventories
Axis LLC Member.
Axis Llc [Member]
Axis LLC
Lessor, Operating Lease, Payment to be Received
Operating Leases, Future Minimum Payments Receivable, Total
Derivative Instrument Maturity
Derivative Instrument Maturity [Axis]
Derivative Instrument Maturity
Debt Instrument, Redemption, Period
Debt Instrument, Redemption, Period [Domain]
Noncontrolling Interest and Contingently Redeemable Noncontrolling Interest.
Noncontrolling Interest And Contingently Redeemable Noncontrolling Interest Policytextblock
Noncontrolling interest and Contingently redeemable noncontrolling interest
Reconciliation of Revenue from Segments to Consolidated [Table]
Reconciliation Of Revenue From Segments To Consolidated [Table]
Line Of Credit Facility Expiration Month And Year
Line Of Credit Facility Expiration Month And Year
Line of credit facility borrowings outstanding due period
Property, Plant and Equipment [Table Text Block]
Estimated Useful Lives
Letters of Credit Outstanding, Amount
Letter of credit facility outstanding amount
Income Tax Disclosure [Abstract]
Fair Value, Recurring and Nonrecurring [Table]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]
Unrecognized Tax Benefits
Unrecognized Tax Benefit – Ending Balance
Unrecognized Tax Benefit – Opening Balance
2030
Lessor, Operating Lease, Payment to be Received, Year Four
Additional Paid-in Capital [Member]
Additional Paid-in Capital
Number of customer accounted for more than ten percentage of accounts receivable.
Number of Customer Accounted for More than Ten Percentage of Accounts Receivable
Number of customer accounted for more than 10% of accounts receivable
Incremental shares earned for performance awarded to participants based on Relative TSR criteria
Incremental Shares Earned Awarded to Participants based on Relative Total Shareholder Return Criteria for Performance in Period
Incremental shares earned awarded to participants based on relative total shareholder return criteria for performance in period.
Measurement Frequency [Domain]
Measurement Frequency
Stockholders Equity Note [Line Items]
Stockholders Equity Note [Line Items]
Stockholders Equity Note [Line Items]
Authorized amount under stock repurchase program
Share Repurchase Program, Authorized, Amount
Standard and Extended Product Warranty Accrual, Increase (Decrease) for Preexisting Warranties
Charged to cost of revenue
Statement of Income Location, Balance [Axis]
Income Statement Location
Change in Accounting Principle, Accounting Standards Update, Adoption Date
Change in Accounting Principle, Accounting Standards Update, Adoption Date
Trading Symbol
Trading Symbol
GBXL I 2026 Class B Notes [Member]
GBXL I 2026 Class B Notes [Member]
Property, Plant and Equipment Disclosure [Text Block]
Property, Plant and Equipment, net
Divestitures [Abstract]
Divestitures.
Related Party Transaction [Table]
Schedule Of Related Party Transactions By Related Party [Table]
Intangible And Other Assets
Intangible And Other Assets Table [Text Block]
Identifiable Intangible and Other Assets
Nontaxable or nondeductible items, Permanent differences
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent, Total
Debt Instrument, Redemption, Period Three [Member]
Redemption on or After April 15, 2025
Subsequent Event Type [Axis]
2031
Lessor, Operating Lease, Payment to be Received, Year Five
Unrealized gain (loss) on derivative financial instruments, tax
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax
GBXL I 2026 Class A Notes [Member]
GBXL I 2026 Class A Notes [Member]
Related Party Transaction, Purchases from Related Party
Purchases of goods from related party
Fair Value, Recurring [Member]
Fair Value, Measurements, Recurring
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Accounts Payable and Accrued Liabilities
Effective Income Tax Rate Reconciliation BEAT and Minimum Taxes Percent
Effective income tax rate reconciliation BEAT and minimum taxes percent
BEAT and minimum taxes
Lessee, Operating Lease, Liability, to be Paid
Total lease payments
Accounting Standards Update 2016-13 [Member]
ASU 2016-13
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Less: Imputed interest
WIBOR [Member]
Wibor [Member]
WIBOR
Income Tax Reconciliation, Foreign Currency Inflationary Effects Amount
Income tax reconciliation, foreign currency inflationary effects amount.
Foreign currency / inflationary effects
Greenbrier Maxion.
Greenbrier Maxion [Member]
Greenbrier-Maxion
Equity Components [Axis]
Equity Components
Cost of Sales and Selling, General and Administrative Expenses [Member]
Cost Of Sales And Selling General And Administrative Expenses [Member]
Selling, Administrative and Cost of Revenue
Accounts Payable, Total
Accounts Payable
Trade payables
Equity Component [Domain]
Equity Component
Debt instrument, maturity year.
Debt Instrument, Maturity Year
Debt instrument, maturity year
Revenue From Contract With Customers [Line Items]
Revenue From Contract With Customers [Line Items]
Revenue From Contract With Customers [Line Items]
Goodwill and Intangible Assets Disclosure [Abstract]
Other
State and Local Tax Jurisdiction, Other [Member]
Two Thousand Seventeen Amended And Restated Stock Incentive Plan [Member]
Two thousand seventeen amended and restated stock incentive plan.
2017 Amended and Restated Stock Incentive Plan
Deferred Tax Assets, Deferred Income
Deferred revenue
Standard and Extended Product Warranty Accrual
Balance at end of period
Balance at beginning of period
Accrued warranty
Standard and Extended Product Warranty Accrual, Total
2026 GBXL Notes
Two Thousand Twenty Six GBXL Notes [Member]
Two Thousand Twenty Six GBXL Notes [Member]
Document Annual Report
Document Annual Report
Number of railcars owned.
Number Of Railcars Owned
Number of railcars owned
Other Notes Payable
Other notes payable
Other Notes Payable, Total
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]
Operating Lease, Liability, Statement of Financial Position [Extensible List]
O 2022 A dividends.
O 2022 A Dividends [Member]
O2022 A Dividends
Issuance of vested restricted stock units (net of shares withheld for tax) (in shares)
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures
Restricted stock awards (net of cancellations) (in shares)
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total
Machinery and Equipment [Member]
Machinery and Equipment
Customer [Axis]
Customer
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Table]
SOFR adjustment rate.
SOFR Adjustment Rate [Member]
SOFR Adjustment
Changes in unrecognized tax benefits
Income Tax Reconciliation, Changes in Unrecognized Tax Benefits, Amount
Income tax reconciliation, changes in unrecognized tax benefits, amount.
Committed Credit Facilities
Committed credit facilities.
Building and Building Improvements [Member]
Building and improvements
Statement of Comprehensive Income [Abstract]
Standard and Extended Product Warranty Accrual, Foreign Currency Translation Gain (Loss)
Currency translation effect
Conversions [Member]
Conversions [Member]
Conversions
Maximum [Member]
Maximum
Debt Instrument, Convertible, Conversion Ratio
Convertible notes initial conversion rate, shares per $1,000 principal amount
Designated as Hedging Instrument [Member]
Designated as Hedging Instrument
Statistical Measurement [Axis]
Statistical Measurement
Finite-Lived Intangible Assets, Accumulated Amortization
Accumulated amortization
Common stock - without par value; 100,000 shares authorized; 30,940 and 30,873 outstanding at August 31, 2026 and 2025
Common Stock, Value, Issued
Other Comprehensive Income, Other, Net of Tax
Other (net of tax effect)
Effective income tax rate reconciliation, tax credit adjustment, percent
Effective Income Tax Rate Reconciliation, Tax Credit Adjustment, Percent
Credits
Nonrecourse [Member]
Nonrecourse
Customer Two Concentration Risk [Member]
Customer Two Concentration Risk [Member]
Customer Two Concentration Risk
Litigation Status [Domain]
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
Amounts Reclassified out of Accumulated Other Comprehensive Loss
Dividends [Axis]
Performance Guarantee [Member]
Performance Guarantee
Consolidation, Policy [Policy Text Block]
Principles of consolidation
William Krueger [Member]
William Krueger.
William Krueger
Summary Of Significant Accounting Policies [Line Items]
Summary Of Significant Accounting Policies [Line Items]
Summary Of Significant Accounting Policies [Line Items]
Equity, Including Portion Attributable to Noncontrolling Interest
Ending balance
Beginning balance
Total equity
Lessor, Operating Lease, Payment to be Received, after Year Five
Thereafter
Line Of Credit Renewal Month And Year
Line of credit renewal month and year.
Line of credit renewal month and year
Deferred Tax Assets, Operating Loss Carryforwards
Net operating losses
Deferred Tax Assets, Operating Loss Carryforwards, Total
Interest and Foreign Exchange [Member]
Interest And Foreign Exchange [Member]
Interest and Foreign Exchange
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]
Greenbrier.
Greenbrier [Member]
Greenbrier
Effects of cross-border tax laws, BEAT
Effective Income Tax Rate Reconciliation, BEAT, Amount
Effects of cross-border tax laws, BEAT
Reconciliation of Shares Used in Computation of Basic and Diluted Earnings Per Common Share
Schedule of Weighted Average Number of Shares [Table Text Block]
State and local income taxes, net of federal benefit
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent
Property Plant and Equipment Estimated Usefull Lives [Tables]
Property Plant And Equipment Estimated Useful Lives [Table]
Property Plant And Equipment Estimated Useful Lives [Table]
Entity Public Float
Entity Public Float
Expected share price volatility (GBX)
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Preferred Stock, Shares Authorized
Preferred stock, shares authorized
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Comprehensive income attributable to noncontrolling interest
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest, Total
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class
Equipment on Operating Leases to Other Party [Member]
Equipment on Operating Leases to Other Party [Member]
Equipment on Operating Lease
Payment, Tax Withholding, Share-Based Payment Arrangement
Tax payments for net share settlement of restricted stock
Summary Of Significant Accounting Policies [Table]
Summary Of Significant Accounting Policies [Table]
Summary Of Significant Accounting Policies [Table]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Related Party Transaction [Line Items]
Related Party Transaction [Line Items]
Increase (decrease) in contract with customer asset accounts receivable, net
Increase (Decrease) in Contract with Customer Asset Accounts Receivable, Net
Change in contract assets, accounts receivable, net
Revenue from Contract with Customer [Text Block]
Revenue Recognition
Entity Registrant Name
Entity Registrant Name
Debt Disclosure [Text Block]
Debt, net
Debt Instrument, Periodic Payment, Principal
Periodic Principal Payment
Entity Voluntary Filers
Entity Voluntary Filers
Customer Concentration Risk [Member]
Customer Concentration Risk
Allowance for Doubtful Accounts, Table.
Allowance For Doubtful Accounts Table [Text Block]
Allowance for Doubtful Accounts
Future amortization expense, 2028
Finite-Lived Intangible Asset, Expected Amortization, Year Two
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income Loss [Table]
Deferred State and Local Income Tax Expense (Benefit)
State
Line of Credit Facility, Frequency of Payments
Frequency of payments
Cybersecurity Risk Management Positions or Committees Responsible [Flag]
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
SOFR
Future amortization expense, 2029
Finite-Lived Intangible Asset, Expected Amortization, Year Three
Intangibles and Other Assets by Major Class [Line Items]
Intangibles And Other Assets By Major Class [Line Items]
Intangibles and Other Assets by Major Class [Line Items]
Tax expense (benefit)
Income Tax Expense (Benefit)
Income tax expense
Income tax expense
Measurement Frequency [Axis]
Measurement Frequency
Sales [Member]
Sales
Income Tax Reconciliation, Officer's Compensation Amount
Income tax reconciliation, officer's compensation amount.
Nontaxable or nondeductible Items, Officer compensation
Number of credit facility components.
Number Of Credit Facility Components
Number of senior secured credit facilities
Payments to Acquire Productive Assets
Capital expenditures
Capital expenditures
Payments to Acquire Productive Assets, Total
Interest And Foreign Exchange Net
Interest and foreign exchange
Interest and foreign exchange
Interest and foreign exchange, net
Number of shares repurchased amount
Stock Repurchased During Period, Value
Shares repurchased
Repurchase of stock
Schedule of Property, Plant and Equipment.
Schedule Of Property Plant And Equipment Table [Text Block]
Property, Plant and Equipment, Net
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Subsidiary, Ownership Percentage, Noncontrolling Owner
Interest in joint venture
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Southwest Steel
Southwest Steel [Member]
Southwest Steel.
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total
Consolidation Items [Axis]
Consolidation Items
Accounts Receivable, Allowance for Credit Loss, Writeoff
Usage
Payment for (Proceeds from) Other Investing Activity
Other
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Performance based share based compensation and dividend equivalent rights
Granted
Number of customer accounted for more than ten percentage of revenue.
Number of Customer Accounted for More than Ten Percentage of Revenue
Number of customer accounted for more than 10% of revenue
Assets
Total assets
Assets
Inventory, Policy [Policy Text Block]
Inventories
Property, Plant and Equipment [Table]
Schedule Of Property Plant And Equipment [Table]
Asset-backed term notes.
Asset-Backed Term Notes [Member]
Asset-Backed Term Notes
Income Tax Paid, State and Local, after Refund Received
Income Tax Paid, State and Local, after Refund Received, Total
State
Income Statement [Abstract]
Effective Income Tax Rate Reconciliation, Cross-Border, Other, Percent
Effects of cross-border tax laws, Other
Share-Based Payment Arrangement [Policy Text Block]
Stock-based compensation
Preferred Stock, No Par Value
Preferred stock, without par value
Deferred Income Tax Expense (Benefit)
Deferred income taxes
Deferred Income Tax Expense (Benefit), Total
Subsegments Consolidation Items [Axis]
Vested
Vested
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Schedule Of Revenues From External Customers And Identifiable Assets By Geographical Areas [Table Text Block]
Schedule Of Revenues From External Customers And Identifiable Assets By Geographical Areas Table [Text Block]
Summary of Selected Geographic Information
Diluted earnings per common share
Earnings Per Share, Diluted
Diluted earnings per common share
Earnings Per Share, Diluted, Total
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Segments Internal Financial Reports
Operating Segments [Member]
Operating Segments
Land and Land Improvements [Member]
Land and improvements
Future amortization expense, 2031
Finite-Lived Intangible Asset, Expected Amortization, Year Five
Percent
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount
Tax credits, Foreign tax credits
Tax credits, Foreign tax credits
Disaggregation of Revenue [Abstract]
Disposal Group, Including Discontinued Operation, Assets
Assets held for sale
Disposal Group, Including Discontinued Operation, Assets, Total
City Area Code
City Area Code
Leasing Nonrecourse Term Loans
Leasing nonrecourse term loans.
Leasing Nonrecourse Term Loans [Member]
GBX Leasing Warehouse Facility [Member]
G B X Leasing Warehouse Facility [Member]
GBX Leasing Warehouse Facility
GBX Leasing
Other Comprehensive Income (Loss), Net of Tax
Other comprehensive income (loss), net
Other comprehensive income
GBXL I 2023 Class B Notes [Member]
GBXL I 2023 Class B Notes [Member]
Auditor Name
Operating loss carryforwards expiration year.
Operating Loss Carryforwards Expiration Year
Operating loss carryforwards expiration year
Debt Instrument, Face Amount
Debt, Principal amount
Debt, net
Repurchase Of Stock And Accrued In Accounts Payable And Accrued Liabilities
Repurchase of stock and accrued in accounts payable and accrued liabilities.
Change in Accounts payable and accrued liabilities associated with repurchase of stock
Line of Credit Facility, Maximum Borrowing Capacity
Line of credit facility maximum capacity
Customer Concentration [Abstract]
Customer Concentration [Abstract]
Other Intangible Assets [Member]
Other Intangible Assets
Recourse Status [Axis]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax
Reclassification of derivative financial instruments recognized in net earnings
Dividends, Cash
Cash dividends
Dividends, Cash, Total
Operating Lease, Weighted Average Remaining Lease Term
Weighted average remaining lease term
Minimum tax
Effective Income Tax Rate Reconciliation, Minimum Tax, Percent
Effective income tax rate reconciliation, minimum tax, percent.
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Deferred tax assets, lease liability.
Deferred Tax Assets Lease Liability
Lease liability
Lease, Cost
Total
Tax credits, Other
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Percent
Tax credits, Other
Cash and Cash Equivalents, Policy [Policy Text Block]
Cash and cash equivalents
Gunderson
Gunderson [Member]
Gunderson.
Customer One Concentration Risk [Member]
Customer One Concentration Risk [Member]
Customer One Concentration Risk
Property, Plant and Equipment, Net
Property, plant and equipment, net
Property, plant and equipment, net
Officer [Member]
Officer
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]
Goodwill
BRAZIL
Brazil
Issuance of vested restricted stock units (net of shares withheld for tax)
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures
Restricted stock awards (net of cancellations)
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures, Total
Deferred Foreign Income Tax Expense (Benefit)
Foreign
Noncontrolling Interest, Period Increase (Decrease)
Noncontrolling interest adjustments
Noncontrolling Interest, Period Increase (Decrease), Total
Earnings from operations
Operating Income (Loss)
Earnings from operations
Earnings from operations
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred
Gain (loss) reclassified from accumulated OCI into income
Unrealized pre-tax gain (loss) to be credited to interest expense in next year
Percentage Of Joint Venture Debt Guaranteed
Percentage Of Joint Venture Debt Guaranteed
Joint venture partner each guaranteed percentage
Retained Earnings [Member]
Retained Earnings
Share-Based Payment Arrangement, Noncash Expense
Stock based compensation expense
Share-Based Payment Arrangement, Noncash Expense, Total
GBXL I Series 2022-1 Class A Secured Railcar Equipment Notes.
GBXL I Series 2022-1 Class A Secured Railcar Equipment Notes [Member]
GBXL I Series 2022-1 Class A Secured Railcar Equipment Notes
Operating Lease, Weighted Average Discount Rate, Percent
Weighted average discount rate
Fair Value, Inputs, Level 1 [Member]
Fair Value, Inputs, Level 1
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Net cash provided by (used in) financing activities
Notes Payable
Notes payable, net
Notes payable, net
2029
Lessor, Operating Lease, Payment to be Received, Year Three
Lease, Cost [Table Text Block]
Components of Operating Lease Costs
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member]
Foreign Currency Translation Adjustment
Auditor Location
Impaired Long-Lived Assets Held and Used [Line Items]
Deferred Income Tax Liabilities, Net
Deferred income taxes
Investments, Fair Value Disclosure
Nonqualified savings plan investments
Investments, Fair Value Disclosure, Total
Derivative Contract [Domain]
Derivative Contract
Goodwill [Table]
Schedule Of Goodwill [Table]
Payout percentage
Share-based Compensation Arrangement by Share-based Payment Award, Payout Percentage
Share-based compensation arrangement by share-based payment award, payout percentage.
Goodwill, accumulated impairment losses and other reductions.
Goodwill Accumulated Impairment Losses And Other Reductions
Accumulated other reductions
Accumulated other reductions
Transfer of leased railcars for syndication and inventories to equipment on operating leases.
Transfer Of Leased Railcars For Syndication And Inventories To Equipment On Operating Leases
Transfer from Leased railcars for syndication and Inventories to Equipment on operating leases, net
Estimated Litigation Liability
Civil penalty
Income Tax Jurisdiction [Domain]
Income Tax Authority
Entity Interactive Data Current
Entity Interactive Data Current
Cost Of Revenue [Member]
Cost Of Revenue [Member]
Cost of Revenue
Deferred Tax Liabilities, Gross [Abstract]
Deferred tax liabilities:
Increase (Decrease) in Contract with Customer, Liability
Deferred revenue
Statement of Income Location, Balance [Domain]
Income Statement Location
Fair Value Measurement [Domain]
Fair Value Measurement
Federal.
Federal [Member]
Federal
Revenue From Contract With Customers [Table]
Revenue From Contract With Customers [Table]
Revenue From Contract With Customers [Table]
Property Plant And Equipment Estimated Useful Lives [Line Items]
Property Plant and Equipment Estimated Useful Lives [Line Items]
Property Plant and Equipment Estimated Useful Lives [Line Items]
Remedial Action Time Frame.
Remedial Action Objective Time Frame
Period for remedial action
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Reporting, Revenue Reconciling Item [Line Items]
Contract with Customer, Asset, after Allowance for Credit Loss
Contract assets
Contract with Customer, Asset, after Allowance for Credit Loss, Total
Common Stock, Dividends, Per Share, Declared
Cash dividend per share
Cumulative Effect, Period of Adoption [Domain]
Cumulative Effect, Period of Adoption
Aggregate amount available to draw down
Line of Credit Facility, Current Borrowing Capacity
Entity Tax Identification Number
Entity Tax Identification Number
Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Equity:
Effective income tax rate reconciliation U.S. impact of foreign branch.
Effective Income Tax Rate Reconciliation U.S. Impact of Foreign Branch
U.S. impact of foreign branch
Revenues [Abstract]
Revenue
Long-term Debt, Type
Long-Term Debt, Type [Axis]
Deferred tax liabilities, discount on convertible notes.
Deferred Tax Liabilities Discount On Convertible Notes
Original issue discount
Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Effect of exchange rate changes
Local Phone Number
Local Phone Number
Related Party Transaction [Domain]
Related Party Transaction
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Short-Term Lease, Cost
Short-term lease expense
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Weighted average common shares
Auditor Opinion [Text Block]
Auditor Opinion
Change in Contract with Customer, Asset and Liability [Abstract]
Revenue, Remaining Performance Obligation, Percentage
Expected performance percentage
Interest And Debt Issuance Costs On Convertible Debt Net Of Tax
Interest and debt issuance costs on convertible debt, net of tax.
Interest and debt issuance costs on the 2.875% convertible notes due 2024, net of tax
Increase (reduction) in interest (benefit) expense relating to reserves for uncertain tax provisions
Unrecognized Tax Benefits, Interest on Income Taxes Expense
Accounting Policies [Abstract]
Disaggregation of Revenue [Line Items]
Asset Backed Securities [Abstract]
Asset Backed Securities [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax
Revenue
Deferred tax assets, investment, asset tax credits and other.
Deferred Tax Assets Investment Asset Tax Credits And Other
Investment, asset tax credits and other
Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other than Options, Incremental Shares Earned for Performance in Period, Weighted Average Grant Date Fair Value
Share-based compensation arrangement by share-based payment award, equity instruments other than options, incremental shares earned for performance in period, weighted average grant date fair value.
Incremental shares earned for performance
2030
Lessee, Operating Lease, Liability, to be Paid, Year Four
Income Tax Reconciliation, Minimum Tax Amount
Income tax reconciliation, minimum tax amount.
Minimum tax
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant
Shares available for grant
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Unamortized compensation cost of restricted stock unit grants expected to be recognized over weighted average period
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
Accounts Payable and Accrued Liabilities
Goodwill, Impaired, Accumulated Impairment Loss
Accumulated goodwill impairment losses
Entity Emerging Growth Company
Entity Emerging Growth Company
Subsegments Consolidation Items [Domain]
Debt instrument repayment date.
Debt Instrument Repayment Date
Debt instrument, repayment date