Accounts Payable And Accrued Liabilities Current And Noncurrent Accounts payable and accrued liabilities Accounts payable and accrued liabilities Accounts Payable And Accrued Liabilities Disclosure [Text Block] Accounts Payable and Accrued Liabilities Accounts Payable and Accrued Liabilities [Line Items] Accounts Payable And Accrued Liabilities [Line Items] Accounts Payable and Accrued Liabilities [Line Items] Accounts Payable and Accrued Liabilities [Member] Accounts Payable And Accrued Liabilities [Member] Accounts Payable and Accrued Liabilities Accounts Payable and Accrued Liabilities [Table] Accounts Payable And Accrued Liabilities [Table] Accounts Payable and Accrued Liabilities [Table] Accounts Payable And Other Accrued Liabilities Trade payables and other accrued liabilities Accounts Receivable [Member] Accounts Receivable Accounts Receivable Net Accounts receivable, net Accrued Income Taxes Income taxes payable Accrued Maintenance, Current and Noncurrent Accrued Maintenance Current And Noncurrent Accrued maintenance Accumulated Defined Benefit Plans Adjustment [Member] Pension Adjustment Accumulated Net Unrealized Investment Gain Loss [Member] Accumulated Net Unrealized Investment Gain (Loss) Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income Loss [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income Loss Net Of Tax Ending balance Beginning balance Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income Loss [Table] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss), Unrealized Gain (Loss) On Derivatives Arising During Period, Before Tax Accumulated Other Comprehensive Income Loss Unrealized Gain Loss On Derivatives Arising During Period Before Tax Unrealized pre-tax loss Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income(Loss) Accumulated Translation Adjustment [Member] Foreign Currency Translation Adjustment Additional [Member] Additional [Member] Additional Investigation Year Additional Paid In Capital Common Stock Additional paid-in capital Additional Paid In Capital [Member] Additional Paid-in Capital Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Restricted stock amortization Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net earnings (loss) to net cash provided by (used in) operating activities: Adjustments to reconcile net earnings to net cash used in operating activities: Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net Excess tax benefit from restricted stock awards Agreement Expiration Time Agreement Expiration Time Agreement expiration time Allocated Share Based Compensation Expense Restricted stock compensation expense Amendment Flag Amendment Flag Amortization Of Debt Discount Premium Accretion of debt discount Amortization Of Intangible Assets Amortization expense Assets Total assets Assets [Abstract] Assets Assets Fair Value Disclosure Assets, Fair Value Disclosure, Total Assets Fair Value Disclosure [Abstract] Assets: Award Type [Axis] Award Type [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Capital Commitments Capital Commitments Contribution to Capital expenditure for fourth manufacturing line commitment Capital contributed by affiliate. Capital Contributed Amount contributed by company and the joint venture partner for capital expenditure of fourth manufacturing line Capital Leases Net Investment In Direct Financing Leases Investment in direct finance leases Cash And Cash Equivalents At Carrying Value End of period Beginning of period Cash and cash equivalents Cash And Cash Equivalents At Carrying Value [Abstract] Cash and cash equivalents Cash And Cash Equivalents Fair Value Disclosure Cash equivalents Cash And Cash Equivalents Period Increase Decrease Decrease in cash and cash equivalents Decrease in cash and cash equivalents Cash collateral. 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Per Share Additional Information [Abstract] Disclosure Earnings Per Share Additional Information [Abstract] Disclosure Earnings Per Share Additional Information [Abstract] Disclosure - Effect of Derivative Instruments on Statement of Operations [Abstract] Disclosure Effect Of Derivative Instruments On Statement Of Operations [Abstract] Disclosure - Effect of Derivative Instruments on Statement of Operations [Abstract] Disclosure - Fair Values of Derivative Instruments [Abstract] Disclosure Fair Values Of Derivative Instruments [Abstract] Disclosure - Fair Values of Derivative Instruments [Abstract] Disclosure - Guarantor/Non Guarantor - Additional Information [Abstract] Disclosure Guarantor Non Guarantor Additional Information [Abstract] Disclosure - Guarantor/Non Guarantor - Additional Information [Abstract] Disclosure - Identifiable Intangible and Other Assets [Abstract] Disclosure Identifiable Intangible And Other Assets [Abstract] Disclosure - Identifiable Intangible and Other Assets [Abstract] Disclosure - Intangibles and Other Assets, Net - Additional Information [Abstract] Disclosure Intangibles And Other Assets Net Additional Information [Abstract] Disclosure - Intangibles and Other Assets, Net - Additional Information [Abstract] Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Stock Based Compensation Disclosure of Variable Interest Entities Disclosure Of Variable Interest Entities [Text Block] Variable Interest Entities Disclosure - Reconciliation of Basic and Diluted Earnings Per Common Share [Abstract] Disclosure Reconciliation Of Basic And Diluted Earnings Per Common Share [Abstract] Disclosure - Reconciliation of Basic and Diluted Earnings Per Common Share [Abstract] Disclosure - Revolving Notes - Additional Information [Abstract] Disclosure Revolving Notes Additional Information [Abstract] Disclosure - Revolving Notes - Additional Information [Abstract] Disclosure Segment Information Additional Information [Abstract] Disclosure Segment Information Additional Information [Abstract] Disclosure Segment Information Additional Information [Abstract] Disclosure - Segments' Internal Financial Reports [Abstract] Disclosure Segments Internal Financial Reports [Abstract] Disclosure - Segments' Internal Financial Reports [Abstract] Disclosure Stock Based Compensation Additional Information [Abstract] Disclosure Stock Based Compensation Additional Information [Abstract] Disclosure Stock Based Compensation Additional Information [Abstract] Disclosure - Variable Interest Entities - Additional Information [Abstract] Disclosure Variable Interest Entities Additional Information [Abstract] Disclosure - Variable Interest Entities - Additional Information [Abstract] Disclosure - Warranty Accrual Activity [Abstract] Disclosure Warranty Accrual Activity [Abstract] Disclosure - Warranty Accrual Activity [Abstract] Document Documentand Entity Information [Abstract] Document Documentand Entity Information [Abstract] Document Documentand Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Document Information [Line Items] Document Information [Line Items] Document Period End Date Document Period End Date Document Type Document Type Earnings Per Share Basic Basic earnings per common share: Earnings Per Share Diluted Diluted earnings per common share: Diluted earnings per share Earnings Per Share Diluted [Line Items] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share Disclosure [Line Items] Earnings Per Share Disclosure [Line Items] Earnings Per Share Disclosure [Line Items] Earnings Per Share Disclosure [Table] Earnings Per Share Disclosure [Table] Earnings Per Share Disclosure [Table] Earnings Per Share [Table] Earnings Per Share [Table] Earnings Per Share [Table] Earnings Per Share [Text Block] Earnings Per Share Effect Of Exchange Rate On Cash And Cash 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amortization expense, 2016 Finite Lived Intangible Assets Amortization Expense Year Three Future amortization expense, 2015 Finite Lived Intangible Assets Amortization Expense Year Two Future amortization expense, 2014 Finite Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite Lived Intangible Assets Gross Finite lived intangible assets gross Finite Lived Intangible Assets Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite Lived Intangible Assets Net Finite-Lived Intangible Assets, Net Foreign Currency Forward Exchange Contracts [Member] Foreign Currency Forward Exchange Contracts [Member] Foreign Currency Forward Exchange Contracts Foreign Exchange Forward [Member] Foreign Exchange Forward Foreign Exchange [Member] Foreign Exchange Future Period [Member] Future Period [Member] Future Period Gain Loss On Disposition Of Assets Gain on disposition of equipment Gain Loss On Sale Of Property Plant Equipment Gain on sales of leased equipment Goodwill Goodwill Gross Profit Margin Margin Group One Facilities [Member] Group One Facilities [Member] First Line of Credit Group Two Facilities [Member] Group Two Facilities [Member] Second Line of Credit Guarantee Obligations Current Carrying Value Guarantee obligations Guarantee Obligations [Line Items] Guarantor Obligations [Line Items] Guarantees [Text Block] Guarantor/Non Guarantor Guarantor Non Guarantor Condensed Consolidating Balance Sheet[Table Text Block] Guarantor Non Guarantor Condensed Consolidating Balance Sheet Table [Text Block] Condensed Consolidating Balance Sheet Guarantor Non Guarantor Condensed Consolidating Statement Of Cash Flows [Table Text Block] Guarantor Non Guarantor Condensed Consolidating Statement Of Cash Flows Table [Text Block] Condensed Consolidating Statement of Cash Flows Guarantor Non Guarantor Condensed Consolidating Statement Of Operations [Table Text Block] Guarantor Non Guarantor Condensed Consolidating Statement Of Operations Table [Text Block] Condensed Consolidating Statement of Operations Guarantor Subsidiaries [Member] Combined Guarantor Subsidiaries Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Hedging Relationship [Domain] Hedging Relationship [Domain] Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments Earnings (loss) before income taxes and earnings (loss) from unconsolidated affiliates Earnings before income taxes and loss from unconsolidated affiliates Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest Earnings (loss) before earnings (loss) from unconsolidated affiliates Earnings before loss from unconsolidated affiliates Income Loss From Equity Method Investments Earnings (loss) from unconsolidated affiliates Loss from unconsolidated affiliates Income Statement [Abstract] Income Statement [Abstract] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Income Taxes Paid Net Income taxes, net Income Tax Expense Benefit Income tax expense Income tax (expense) benefit Increase Decrease In Accounts Payable And Accrued Liabilities Accounts payable and accrued liabilities Increase Decrease In Accounts Receivable Accounts receivable Increase Decrease In Deferred Revenue Deferred revenue Increase Decrease In Inventories Inventories Increase Decrease in Leased Railcars for Syndication Increase Decrease In Leased Railcars For Syndication Leased railcars for syndication Increase Decrease In Operating Assets [Abstract] Decrease (increase) in assets Decrease (increase) in assets: Increase Decrease In Operating Liabilities [Abstract] Increase (decrease) in liabilities Increase (decrease) in liabilities: Increase Decrease In Other Operating Assets Other Increase Decrease In Restricted Cash Increase in restricted cash Decrease (increase) in restricted cash Incremental Common Shares Attributable To Call Options And Warrants Dilutive effect of warrants Incremental Common Shares Attributable To Conversion Of Debt Securities Dilutive effect of convertible notes Indefinite Lived Intangible Assets Excluding Goodwill Intangible assets not subject to amortization Intangible and Other Assets [Member] Intangible And Other Assets [Member] Intangible and Other Assets Intangible And Other Assets Intangible And Other Assets Table [Text Block] Identifiable Intangible and Other Assets Intangible Assets by Major Class [Line Items] Intangible Assets By Major Class [Line Items] Intangible Assets by Major Class [Line Items] Intangible Assets Disclosure [Text Block] Intangibles and Other Assets, net 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 Intangible Assets Net Excluding Goodwill Intangibles and other assets, net Intangibles And Other Assets [Axis] Intangibles And Other Assets [Axis] Intangibles And Other Assets [Axis] Intangibles And Other Assets [Domain] Intangibles And Other Assets [Domain] Intangibles And Other Assets [Domain] Interest And Debt Expense Interest and debt issuance costs on the 2018 Convertible notes, net of tax Interest and foreign exchange Interest And Foreign Exchange Interest and foreign exchange Interest and Foreign Exchange [Member] Interest And Foreign Exchange [Member] Interest and Foreign Exchange Interest Paid Interest Interest Rate Swap Contract [Member] Interest Rate Swap Contract [Member] Interest Rate Swap Contract Interest Rate Swap [Member] Interest Rate Swap Intersegment Elimination [Member] Intersegment Elimination Inventory Adjustments Excess and obsolete adjustment Inventory Disclosure [Line Items] Inventory Disclosure [Line Items] Inventory Disclosure [Line Items] Inventory Disclosure [Table] Inventory Disclosure [Table] Inventory Disclosure [Table] Inventory Disclosure [Text Block] Inventories Inventory Finished Goods Finished goods Inventory Gross Inventories Inventories Inventory Raw Materials Manufacturing supplies and raw materials Inventory Work In Process Work-in-process Investment by joint venture partner Investments By Joint Venture Partner Investment by joint venture partner Investments Fair Value Disclosure Nonqualified savings plan investments Issuance Of Debt Effect On Diluted Earning Per Share Issuance Of Debt Effect On Diluted Earning Per Share Earnings before interest and debt issuance costs on convertible notes Leased Railcars for Syndication, at Carrying Value Leased Railcars For Syndication At Carrying Value Leased railcars for syndication Leasing and Services [Member] Leasing And Services [Member] Leasing and Services Legal Entity [Axis] Legal Entity [Axis] Letters Of Credit Outstanding Amount Letter of credit facility outstanding amount Outstanding letters of credit Liabilities And Stockholders Equity Liabilities and Equity Liabilities and Equity, Total Liabilities And Stockholders Equity [Abstract] Liabilities and Equity Liabilities Fair Value Disclosure [Abstract] Liabilities: Line Of Credit Revolving notes Line Of Credit Facility Amount Outstanding Line of credit facility outstanding amount Line Of Credit Facility [Axis] Lender Name [Axis] Line Of Credit Facility Lender [Domain] Line of Credit Facility, Lender [Domain] Line Of Credit Facility [Line Items] Line of Credit Facility [Line Items] Line Of Credit Facility Maximum Available Capacity Line Of Credit Facility Maximum Available Capacity Line of credit facility available capacity Line Of Credit Facility Maximum Borrowing Capacity Line of credit facility maximum capacity Line Of Credit Facility [Table] Line of Credit Facility [Table] Line of Credit Maturity Month and Year Line Of Credit Maturity Month And Year Line of credit maturity date Location 1 [Member] Location One [Member] Portland Harbor Site Location 2 [Member] Location Two [Member] Area Of Willamette River Adjacent to the Company's Portland, Oregon Manufacturing Facility Long Term Debt Percentage Bearing Variable Interest Rate Interest on borrowings above LIBOR rate Longterm Debt Type [Axis] Long-term Debt, Type [Axis] Longterm Debt Type [Domain] Long-term Debt, Type [Domain] Loss Contingencies by Name of Plaintiff [Axis] Loss Contingencies By Name Of Plaintiff [Axis] Loss Contingencies by Name of Plaintiff [Axis] Loss Contingencies by Name of Plaintiff [Domain] Loss Contingencies By Name Of Plaintiff [Domain] Loss Contingencies by Name of Plaintiff [Domain] Loss Contingency Settlement Agreement Date Settlement agreement effective date Manufacturing Costs Manufacturing Manufacturing [Member] Manufacturing [Member] Manufacturing Maximum [Member] Maximum Mexican Joint Venture Credit Facility [Member] Mexican Joint Venture Credit Facility [Member] Mexican Joint Venture Credit Facility Minimum [Member] Minimum Minority Interest Noncontrolling interest Minority Interest Period Increase Decrease Noncontrolling interest adjustments Net Cash Provided By Used In Financing Activities Net cash provided by (used in) financing activities Net Cash Provided By Used In Financing Activities [Abstract] Cash flows from financing activities: Net Cash Provided By Used In Investing Activities Net cash provided by (used in) investing activities Net cash used in investing activities Net Cash Provided By Used In Investing Activities [Abstract] Cash flows from investing activities: Net Cash Provided By Used In Operating Activities Net cash provided by (used in) operating activities Net cash used in operating activities Net Cash Provided By Used In Operating Activities [Abstract] Cash flows from operating activities: Net Income Loss Net earnings (loss) attributable to Greenbrier Net earnings attributable to Greenbrier Net earnings attributable to Greenbrier Net Income Loss Attributable To Noncontrolling Interest Net (earnings) loss attributable to noncontrolling interest Noncontrolling Interest [Member] Attributable to Noncontrolling Interest Nondesignated [Member] Not Designated as Hedging Instrument Non Guarantor Subsidiaries [Member] Combined Non-Guarantor Subsidiaries Nonoperating Income Expense [Abstract] Other costs North American Revolving Credit Facility [Member] North American Revolving Credit Facility [Member] North American Revolving Credit Facility Notes Payable Notes payable Notional Amount Of Foreign Currency Cash Flow Hedge Derivatives Aggregate notional amount of foreign currency derivatives Notional Amount Of Interest Rate Cash Flow Hedge Derivatives Notional amount of interest rate swap Number of credit facility components. Number Of Credit Facility Components Number of senior secured credit facilities Number of Debt Instrument Number Of Debt Instrument Number of lines of credits Number of Rail Cars Sold Number Of Rail Cars Sold Number of railcars sold Number Of Reportable Segments Number of reportable segments Number of Vehicles Number Of Vehicles Number of freight cars to build Number of Vehicles Installed Number Of Vehicles Installed Number of installed railcar Number of Vehicles Required to be Removed from Service Number Of Vehicles Required To Be Removed From Service Number of vehicles required to be removed from service Okombi GmbH [Member] Okombi Gmb H [Member] Okombi GmbH Operating Income Loss Earnings (loss) from operations Earnings from operations Operating Leased Assets, Gross Operating Leased Assets Gross Operating leases Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] Interim Financial Statements Other Accounts Payable And Accrued Liabilities Other Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax Translation adjustment Other Comprehensive Income Loss Net Of Tax Other comprehensive income (loss), net Other comprehensive income (loss) Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract] Other comprehensive income Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent First quarter activity Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax Reclassification of derivative financial instruments recognized in net earnings (net of tax of effect of $0.04 million and $0.2 million) Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax Reclassification of derivative financial instruments recognized in net earnings, tax Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax Unrealized gain (loss) on derivative financial instruments (net of tax of effect of $0.3 million and $0.04 million) Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax Unrealized gain (loss) on derivative financial instruments, tax Other Intangible Assets [Member] Other Intangible Assets Other Operating Activities Cash Flow Statement Other Parent Company [Member] Parent Parent [Member] Total Attributable to Greenbrier The net cash outflow (inflow) from intercompany advances from financing activities. Payments For Proceeds From Intercompany Advances From Financing Activities Intercompany advances The net cash outflow (inflow) from intercompany advances from investing activities. Payments For Proceeds From Intercompany Advances From Investing Activities Intercompany advances Payments For Proceeds From Other Investing Activities Other Payments To Acquire Interest In Subsidiaries And Affiliates Investment in and net advances from unconsolidated affiliates Investment in and net advances to unconsolidated affiliates Payments To Acquire Productive Assets Capital expenditures Percentage Of Commitment Amount Percentage Of Commitment Amount Percentage of commitment Contribution by company towards fourth Manufacturing line Percentage Of Ownership In Subsidiaries Percentage Of Ownership In Subsidiaries Percentage of ownership in subsidiaries Percentage Of Ownership Interests By Third Party. Percentage Of Ownership Interests By Third Party Third party ownership interest Period [Axis] Period [Axis] Period [Axis] Period [Domain] Period [Domain] Period [Domain] Period 1 [Member] Period One [Member] November 2012 Period 2 [Member] Period Two [Member] August 2012 Preferred Stock No Par Value Preferred stock, without par value Preferred Stock Shares Authorized Preferred stock, shares authorized Preferred Stock Shares Outstanding Preferred stock, outstanding Preferred Stock Value Preferred stock-without par value; 25,000 shares authorized; none outstanding Prepaid Expense And Other Assets Prepaid and other assets The cash inflow associated with an investment by a joint venture partner. Proceeds From Investments By Joint Venture Partner Investment by joint venture partner Proceeds From Notes Payable Proceeds from notes payable Proceeds from the issuance of notes payable Proceeds From Payments For Other Financing Activities Other Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less Net change in revolving notes with maturities of 90 days or less Proceeds From Sale Of Property Plant And Equipment Proceeds from sales of equipment Proceeds From Short Term Debt Maturing In More Than Three Months Proceeds from revolving notes with maturities longer than 90 days Product Liability Contingency [Line Items] Product Liability Contingency [Line Items] Product Liability Contingency [Table] Product Liability Contingency [Table] Product Warranty Accrual Balance at end of period Balance at beginning of period Accrued warranty Product Warranty Accrual Currency Translation Increase Decrease Currency translation effect Product Warranty Accrual Payments Payments Product Warranty Accrual Warranties Issued Charged to cost of revenue, net Product Warranty Disclosure [Text Block] Warranty Accruals Profit Loss Net earnings Net earnings Net earnings (loss) Property Plant And Equipment Net Property, plant and equipment, net Property Subject To Operating Lease [Member] Property Subject to Operating Lease Property Subject To Or Available For Operating Lease [Axis] Property Subject to or Available for Operating Lease [Axis] Property Subject To Or Available For Operating Lease [Domain] Property Subject to or Available for Operating Lease [Domain] Property Subject To Or Available For Operating Lease Net Equipment on operating leases, net Range [Axis] Range [Axis] Range [Member] Range [Domain] Repayments Of Notes Payable Repayments of notes payable Repayments Of Short Term Debt Maturing In More Than Three Months Repayments of revolving notes with maturities longer than 90 days Repayment of revolving notes with maturities longer than 90 days Restricted Cash And Cash Equivalents Restricted cash Restricted Stock [Member] Restricted Stock Retained Earnings Accumulated Deficit Retained earnings Retained Earnings [Member] Retained Earnings Revenues Revenues Revenue Revenues [Abstract] Revenue Sales Revenue Goods Net Manufacturing Sales Revenue Services Net Leasing & Services Sales Revenue Services Net [Member] Sales Revenue, Services, Net Schedule Of Accounts Payable And Accrued Liabilities Table [Text Block] Accounts Payable and Accrued Liabilities Schedule Of Accumulated Other Comprehensive Income Loss Table [Text Block] Components of Accumulated Other Comprehensive Income (Loss), Net of Tax Schedule of Condensed Consolidating Balance Sheets [Line Items] Schedule Of Condensed Consolidating Balance Sheets [Line Items] Schedule of Condensed Consolidating Balance Sheets [Line Items] Schedule of Condensed Consolidating Balance Sheets [Table] Schedule Of Condensed Consolidating Balance Sheets [Table] Schedule of Condensed Consolidating Balance Sheets [Table] Schedule of Condensed Consolidating Statement of Cash Flows [Line Items] Schedule Of Condensed Consolidating Statement Of Cash Flows [Line Items] Schedule of Condensed Consolidating Statement of Cash Flows [Line Items] Schedule of Condensed Consolidating Statement of Cash Flows [Table] Schedule Of Condensed Consolidating Statement Of Cash Flows [Table] Schedule of Condensed Consolidating Statement of Cash Flows [Table] Schedule of Condensed Consolidating Statement of Operations [Line Items] Schedule Of Condensed Consolidating Statement Of Operations [Line Items] Schedule of Condensed Consolidating Statement of Operations [Line Items] Schedule of Condensed Consolidating Statement of Operations [Table] Schedule Of Condensed Consolidating Statement Of Operations [Table] Schedule of Condensed Consolidating Statement of Operations [Table] Schedule Of Derivative Instruments Gain Loss In Statement Of Financial Performance [Text Block] Effect of Derivative Instruments on Statement of Operations Schedule Of Derivative Instruments In Statement Of Financial Position Fair Value [Text Block] Fair Values of Derivative Instruments Schedule Of Earnings Per Share Diluted By Common Class [Table] Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] Schedule Of Earnings Per Share Diluted By Common Class [Text Block] Approach to Calculate Diluted Earning Per Share Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table [Text Block] Assets and Liabilities Measured at Fair Value on Recurring Basis Schedule Of Guarantee Obligations [Table] Schedule of Guarantor Obligations [Table] Schedule of Intangible Assets by Major Class [Table] Schedule Of Intangible Assets By Major Class [Table] Schedule of Intangible Assets by Major Class [Table] Schedule of Intangible Assets Disclosure [Line Items] Schedule Of Intangible Assets Disclosure [Line Items] Schedule of Intangible Assets Disclosure [Line Items] Schedule of Intangible Assets Disclosure [Table] Schedule Of Intangible Assets Disclosure [Table] Schedule of Intangible Assets Disclosure [Table] Schedule Of Inventory Current Table [Text Block] Components of Inventories Schedule Of Product Warranty Liability Table [Text Block] Warranty Accrual Activity Schedule Of Segment Reporting Information By Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Schedule Of Segment Reporting Information By Segment [Text Block] Segments' Internal Financial Reports Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule Of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Schedule Of Weighted Average Number Of Shares Table [Text Block] Reconciliation of Shares Used in Computation of Basic and Diluted Earnings Per Common Share Seb Finans Ab [Member] Seb Finans Ab [Member] Seb Finans Ab Segment [Domain] Segment [Domain] Segment Reporting Disclosure [Line Items] Segment Reporting Disclosure [Line Items] Segment Reporting Disclosure [Line Items] Segment Reporting Disclosure [Table] Segment Reporting Disclosure [Table] Segment Reporting Disclosure [Table] Segment Reporting Disclosure [Text Block] Segment Information Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Selling General And Administrative Expense Selling and administrative Senior Notes Due Twenty Twenty Six [Member] Senior Notes Due Twenty Twenty Six [Member] 2026 Senior Notes Senior Secured Credit Facility Revolving Line Of Credit [Member] Senior Secured Credit Facility Revolving Line Of Credit [Member] Senior Secured Credit Facility Revolving Line Of Credit Share Based Compensation Stock based compensation Stock based compensation expense Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Award Type [Domain] Shares Outstanding Ending Balance (in shares) Beginning Balance (in shares) Statement Business Segments [Axis] Business Segments [Axis] Statement Equity Components [Axis] Equity Components [Axis] Statement [Line Items] Statement [Line Items] Statement Of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Statement Of Financial Position [Abstract] Statement of Financial Position [Abstract] Statement Of Income And Comprehensive Income [Abstract] Statement of Other Comprehensive Income [Abstract] Statement Of Stockholders Equity [Abstract] Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Stockholders Equity Total equity Greenbrier Total equity Greenbrier Stockholders Equity [Abstract] Greenbrier Stockholders Equity Including Portion Attributable To Noncontrolling Interest Ending Balance Beginning Balance Total equity Total equity Stockholders Equity Including Portion Attributable To Noncontrolling Interest [Abstract] Equity: Number of shares issued during the period as a result of the exercise of warrants. Stock Issued During Period Shares Stock Warrants Exercised Warrants exercised Supplemental Cash Flow Information [Abstract] Cash paid during the period for: Text Block [Abstract] Text Block [Abstract] Trading Symbol Trading Symbol Value of railcars. Value Of Railcars Value of railcars Variable Interest by Type [Axis] Variable Interest By Type [Axis] Variable Interest by Type [Axis] Variable Interest by Type [Domain] Variable Interest By Type [Domain] Variable Interest by Type [Domain] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Variable Interest Entity Nonconsolidated Carrying Amount Assets Carrying amounts Variable Interest Entity Ownership Percentage Ownership interest in VIE Warrant Liabilities, Current Warrant Liabilities Current Bank and third party warranty guarantee facilities Weighted Average Number Of Diluted Shares Outstanding Diluted Weighted average diluted common shares outstanding Weighted average diluted common shares outstanding Weighted Average Number Of Shares Outstanding [Abstract] Weighted average common shares: Weighted Average Number Of Shares Outstanding Basic Basic Weighted average basic common shares outstanding Wheel Services, Refurbishment and Parts [Member] Wheel Services Refurbishment And Parts [Member] Wheel Services, Refurbishment and Parts Wheel Services, Refurbishment & Parts Costs Wheel Services Refurbishment Parts Costs Wheel Services, Refurbishment & Parts Wheel Services, Refurbishment & Parts Revenue Wheel Services Refurbishment Parts Revenue Wheel Services, Refurbishment & Parts Wheels Services, Refurbishment & Parts