Partners' Capital Notes [Abstract] Partners Capital And Distributions [Table] Partners Capital And Distributions [Table] Partners Capital And Distributions [Table] Statement, Partner Type of Partners' Capital Account [Axis] Statement, Partner Type of Partners' Capital Account [Axis] Partner Type of Partners' Capital Account, Name [Domain] Partner Type of Partners' Capital Account, Name [Domain] Waiver Units Class 1 [Member] Waiver Units Class1 [Member] Waiver Units Class 1 [Member] Waiver Units Class 3 [Member] Waiver Units Class3 [Member] Waiver Units Class 3 [Member] Waiver Units Class 4 [Member] Waiver Units Class4 [Member] Waiver Units Class 4 [Member] Class A [Member] Common Class A [Member] Class B [Member] Common Class B [Member] Waiver Units [Member] Waiver Units [Member] Waiver units [Member] Class One [Member] Class One [Member] Class one [Member] Class Two [Member] Class Two [Member] Class two [Member] Class Three [Member] Class Three [Member] Class three [Member] Class Four [Member] Class Four [Member] Class four [Member] Waiver Units Class2 [Member] Waiver Units Class2 [Member] Waiver Units Class 2 [Member] Partners Capital And Distributions [Line Items] Partners Capital And Distributions [Line Items] Partners Capital And Distributions [Line Items] Issuance of common units Partners' Capital Account, Units, Sale of Units Price per share of common units issued Sale of Stock, Price Per Share Proceeds received from offering, net of costs Partners' Capital Account, Public Sale of Units Net of Offering Costs Common units, outstanding Limited Partners' Capital Account, Units Outstanding Waiver units authorized Waiver Units Authorized Total number of authorized waiver units per class. Waiver units issued Waiver Units Issued Total number of issued waiver units per class eligible to convert into common units. Conversion feature, minimum distribution coverage ratio Conversion Feature, Minimum Distribution Coverage Ratio The minimum quarterly distribution coverage ratio required for a class of waiver units to be eligible for conversion to common units. Conversion feature threshold, quarterly distribution, minimum, per unit Conversion feature threshold, quarterly distribution, minimum, per unit The minimum quarterly distribution per common unit required for a class of waiver units to be eligible for conversion to common units. Waiver Units Class 1 Convertible Date Waiver Units Class 1 Convertible Date Waiver Units Class 1 Convertible Date Distribution paid per common unit Partners' Capital Account, Distribution Per Unit of Limited Partner Interest Waiver units outstanding Waiver Units Outstanding Waiver Units Outstanding Waiver Units Class 2 Convertible Date Waiver Units Class 2 Convertible Date Waiver Units Class 2 Convertible Date Distribution Made to Member or Limited Partner, Distribution Date Distribution Made to Member or Limited Partner, Distribution Date Statement of Cash Flows [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Adjustments to reconcile net income to net cash provided by operating activities - Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Amortization of debt issuance costs and premium Amortization of Financing Costs Amortization of unearned income and initial direct costs on direct financing leases Amortization Of Unearned Income And Initial Direct Costs On Direct Financing Leases Amortization of unearned income and initial direct costs on direct financing leases during the period. Payments received under direct financing leases Increase (Decrease) in Leasing Receivables Equity in earnings of investments in equity investees Income (Loss) from Equity Method Investments Cash distributions of earnings of equity investees Equity Method Investment, Dividends or Distributions Non-cash effect of equity-based compensation plans Share-based Compensation Deferred and other tax liabilities Increase (Decrease) in Deferred Income Taxes Unrealized gains on derivative transactions Unrealized Gain (Loss) on Derivatives Other, net Other Noncash Income (Expense) Net changes in components of operating assets and liabilities, (See Note 11) Increase (Decrease) in Operating Capital Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities CASH FLOWS FROM INVESTING ACTIVITIES: Net Cash Provided by (Used in) Investing Activities [Abstract] Payments to acquire fixed and intangible assets Payments to Acquire Productive Assets Cash distributions received from equity investees - return of investment Distributions From Joint Ventures Return Of Investment From Investing Activities Cash distributions from joint ventures during the period that constitute a return of investment. Investments in equity investees Payments to Acquire Businesses and Interest in Affiliates Acquisitions Payments to Acquire Businesses, Gross Proceeds from asset sales Proceeds from Sales of Assets, Investing Activities Other, net Payments for (Proceeds from) Other Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Borrowings on senior secured credit facility Proceeds from Long-term Lines of Credit Repayments on senior secured credit facility Repayments of Long-term Lines of Credit Proceeds from issuance of senior unsecured notes, including premium Proceeds from Issuance of Unsecured Debt Debt issuance costs Payments of Debt Issuance Costs Issuance of common units for cash, net Proceeds from Issuance of Common Limited Partners Units Distributions to common unitholders Payments of Distributions To Common Unitholders Cash outflow for distributions to limited partner units. Other, net Proceeds from (Payments for) Other Financing Activities Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Fair Value Disclosures [Abstract] Fair-Value Measurements Fair Value Disclosures [Text Block] Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Gulf Of Mexico Crude Oil Pipeline Systems [Member] Gulf Of Mexico Crude Oil Pipeline Systems [Member] Gulf of Mexico Crude Oil Pipeline Systems [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Property and equipment Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment Equity investees Business Acquisition, Purchase Price Allocation, Other Noncurrent Assets Asset retirement obligation assumed Business Acquisition, Purchase Price Allocation, Liabilities Assumed Total allocation Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net Partners' Capital And Distributions Partners' Capital Notes Disclosure [Text Block] Equity Method Investments and Joint Ventures [Abstract] Current assets Equity Method Investment, Summarized Financial Information, Current Assets Fixed assets, net Equity Method Investment Summarized Financial Information Fixed Assets Net The amount of fixed assets reported by an equity method investment of the entity. Other assets Equity Method Investment Summarized Financial Information Other Assets The amount of other assets reported by an equity method investment of the entity. Total assets Equity Method Investment, Summarized Financial Information, Assets Current liabilities Equity Method Investment, Summarized Financial Information, Current Liabilities Other liabilities Equity Method Investment, Summarized Financial Information, Noncurrent Liabilities Equity Equity Method Investment Summarized Financial Information, Equity Total liabilities and equity Equity Method Investment, Summarized Financial Information, Liabilities and Equity Equity Investees Equity Method Investments Disclosure [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivatives Derivative Instruments and Hedging Activities Disclosure [Text Block] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Maximum [Member] Maximum [Member] Minimum [Member] Minimum [Member] Schedule of Equity Method Investment, Equity Method Investee, Name [Axis] Schedule of Equity Method Investment, Equity Method Investee, Name [Axis] Equity Method Investee, Name [Domain] Equity Method Investee, Name [Domain] Genesis Energy Interest In Poseidon [Member] Genesis Energy Interest In Poseidon Oil Pipeline Company L L C [Member] Genesis Energy Interest In Poseidon Oil Pipeline Company LLC [Member] Genesis Energy Interest In GOPL [Member] Genesis Energy Interest In Marathon Offshore Pipeline L L C Subsequently Named G O P L [Member] Genesis Energy Interest In Marathon Offshore Pipeline LLC, Subsequently Named GOPL [Member] Genesis Energy Interest In Odyssey [Member] Genesis Energy Interest In Odyssey L L C [Member] Genesis Energy Interest In Odyssey LLC [Member] GOPL Interest In Eugene Island Crude Oil Pipeline System [Member] G O P L Interest In Eugene Island Crude Oil Pipeline System [Member] GOPL Interest In Eugene Island Crude Oil Pipeline System [Member] GOPL Interest In Two Small Offshore Pipelines [Member] G O P L Interest In Two Small Offshore Pipelines [Member] GOPL Interest In Two Small Offshore Pipelines [Member] Poseidon [Member] Poseidon Oil Pipeline Company [Member] Poseidon Oil Pipeline Company [Member] Eugene Island Pipeline System [Member] Eugene Island Pipeline System [Member] Eugene Island Pipeline System [Member] Odyssey [Member] Odyssey Pipeline L L C [Member] Odyssey Pipeline L.L.C [Member] Other Offshore Pipelines [Member] Other Offshore Pipelines [Member] Other Offshore Pipelines [Member] Fmt Black Oil Barge Transportation Business [Member] Fmt Black Oil Barge Transportation Business [Member] FMT Black Oil Barge Transportation Business [Member] Fmt Black Oil Barge Transportation Business Fuel Inventory And Other Cost [Member] Fmt Black Oil Barge Transportation Business Fuel Inventory And Other Cost [Member] FMT Black Oil Barge Transportation Business Fuel Inventory And Other Cost [Member] FMT Lease [Member] FMT Lease [Member] FMT Lease [Member] Percentage of equity interest acquired Business Acquisition, Percentage of Voting Interests Acquired Effective date of acquisition Business Acquisition, Effective Date of Acquisition Purchase price, net of post-closing adjustments of acquired entity Business Acquisition, Cost of Acquired Entity, Purchase Price Number of small offshore pipelines acquired Number Of Small Offshore Pipelines Acquired Number of small offshore pipelines acquired Pipeline capacity, barrels per day Pipeline Capacity, Barrels Per Day Pipeline Capacity, Barrels Per Day Pipeline length, in miles Pipeline Length Pipeline Length Pipeline diameter, in inches Pipeline Diameter Pipeline Diameter Business Acquisition, Barges Acquired Business Acquisition, Barges Acquired Business Acquisition, Barges Acquired Business Acquisition, Push Boats Acquired Business Acquisition, Push Boats Acquired Business Acquisition, Push Boats Acquired Equity Issuance, Amount Equity Issuance, Amount Organization, Consolidation and Presentation of Financial Statements [Abstract] Limited Partners' ownership percentage Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest Date Paid Per Unit Amount Total Amount Distribution Made to Member or Limited Partner, Cash Distributions Paid Supplemental Cash Flow Elements [Abstract] (Increase) decrease in Accounts receivable Increase (Decrease) in Accounts Receivable (Increase) decrease in Inventories Increase (Decrease) in Inventories (Increase) decrease in Other current assets Increase (Decrease) in Other Current Assets Increase (decrease) in Accounts payable Increase (Decrease) in Accounts Payable Increase (decrease) in Accrued liabilities Increase (Decrease) in Accrued Liabilities Net changes in components of operating assets and liabilities Consolidated Financial Statements Related To Equity Investees Consolidated Financial Statements Related To Equity Investees [Table Text Block] Represents the share of equity investment earnings included in the consolidated statement of operations less the amortization of the excess purchase. The table also includes distributions received from equity method investments. Schedule Of Balance Sheet Information For Equity Investees Schedule Of Balance Sheet Information For Equity Investees Represents in the aggregate the total asset and liability amounts of equity method investments. Schedule Of Operations For Equity Investees Schedule Of Operations For Equity Investees Represents in the aggregate total revenues, operating income and net income of equity method investments. Fixed Assets And Asset Retirement Obligations [Abstract] Fixed Assets And Asset Retirement Obligations [Abstract] Asset retirement obligations, beginning balance Asset Retirement Obligation Liabilities incurred and assumed in the current period Asset Retirement Obligation, Liabilities Incurred Accretion expense Asset Retirement Obligation, Accretion Expense Asset retirement obligations, ending balance Condensed Consolidating Financial Information [Abstract] Condensed Consolidating Financial Information [Abstract] Schedule of Condensed Financial Statements [Table] Schedule of Condensed Financial Statements [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Genesis Energy, L.P. (Parent And Co-Issuer) [Member] Parent Company [Member] Genesis Energy Finance Corporation (Co-Issuer) [Member] Issuer [Member] Issuer [Member] Guarantor Subsidiaries [Member] Guarantor Subsidiaries [Member] Non-Guarantor Subsidiaries [Member] Non-Guarantor Subsidiaries [Member] Eliminations [Member] Consolidation, Eliminations [Member] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] Supply and logistics Supply And Logistics Revenues Revenues recognized during the period for services related to terminaling, blending, storing, marketing and transporting crude oil, petroleum products and carbon dioxide. Refinery services Refinery Services Revenues Revenues recognized during the period for services involving processing of high sulfur gas streams for refineries to remove the sulfur, and sale of the related by-product, sodium hydrosulfide and supplying caustic soda. Pipeline transportation services Pipeline Transportation Services Revenues Revenues recognized during the period for pipeline transportation of crude oil and carbon dioxide. Total revenues Revenues Supply and logistics costs Supply And Logistics Costs Costs incurred during the period associated with purchasing and marketing of crude oil and refined products and, to a lesser extent, supplying carbon dioxide to industrial customers. Also includes costs incurred during the period associated with terminating, blending, storing, marketing and transporting crude oil, petroleum products and carbon dioxide. Refinery services operating costs Refinery Services Operating Costs Costs incurred during the period for processing of high sulfur gas streams for refineries to remove the sulfur, and sale of the related by-product, sodium hydrosulfide and supplying caustic soda. Pipeline transportation operating costs Pipeline Transportation Operating Costs Costs incurred during the period for pipeline transportation of crude oil and carbon dioxide. General and administrative General and Administrative Expense Net gain on disposal of surplus assets Gain (Loss) on Disposition of Assets Total costs and expenses Costs and Expenses OPERATING INCOME Operating Income (Loss) Equity in earnings of subsidiaries Earnings Of wholly-Owned Subsidiaries Earnings of wholly-owned subsidiaries that are eliminated in consolidation. Equity in earnings of equity investees Interest (expense) income, net Interest Expense Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax (expense) benefit Income Tax Expense (Benefit) NET INCOME Segment Reporting [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Statement, Business Segments [Axis] Statement, Business Segments [Axis] Segment [Domain] Segment [Domain] Pipeline Transportation [Member] Pipeline Transportation [Member] Pipeline Transportation [Member] Refinery Services [Member] Refinery Services [Member] Refinery Services [Member] Supply And Logistics [Member] Supply And Logistics [Member] Supply And Logistics [Member] Other Assets [Member] Other Assets [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Total consolidated assets Assets Net Changes In Components Of Operating Assets And Liabilities Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Condensed Consolidating Financial Information Condensed Consolidating Financial Information Disclosure [Text Block] Condensed Consolidating Financial Information Disclosure [Text Block] Payments of interest and commitment fees Interest Paid Incurred liabilities for fixed and intangible asset additions Capital Expenditures Incurred but Not yet Paid Other Asset Additions Incurred but Not yet Paid Other Asset Additions Incurred but Not yet Paid Other Asset Additions Incurred but Not yet Paid Intangible Assets, Net (Excluding Goodwill) [Abstract] Schedule Of Components Of Intangible Assets Schedule of Finite-Lived Intangible Assets by Major Class [Table Text Block] Amortization Expense Amortization Expense [Table Text Block] Amortization Expense [Table Text Block] Schedule of Expected Amortization Expense Schedule of Expected Amortization Expense [Table Text Block] Income Taxes [Abstract] Income Taxes [Abstract] Income Tax Disclosure [Text Block] Income Tax Disclosure [Text Block] 15. Income Taxes [Abstract] 15. Income Taxes [Abstract] Fixed Assets And Asset Retirement Obligations Fixed Assets And Asset Retirement Obligations [Text Block] Fixed Assets And Asset Retirement Obligations [Text Block] Unrecognized Tax Benefits Unrecognized Tax Benefits Commitments and Contingencies Disclosure [Abstract] Contingencies Commitments and Contingencies Disclosure [Text Block] Inventories [Abstract] Inventories [Abstract] Inventory Write-down Inventory Write-down Schedule of Purchase Price Allocation Schedule of Purchase Price Allocation [Table Text Block] Schedule Of Selected Financial Information Additional Financial Information Disclosure [Text Block] Schedule Of Pro Forma Financial Information Business Acquisition, Pro Forma Information [Table Text Block] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Off-balance Sheet Risks by Financial Instrument [Axis] Fair Value, Off-balance Sheet Risks by Financial Instrument [Axis] Fair Value, Off-balance Sheet Risks, Financial Instruments [Domain] Fair Value, Off-balance Sheet Risks, Financial Instruments [Domain] Commodity Derivatives [Member] Commodity Derivatives [Member] Commodity Derivatives [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Level 3 [Member] Fair Value, Inputs, Level 3 [Member] 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] Assets Fair Value Assets, Fair Value Disclosure Liabilities Fair Value Liabilities, Fair Value Disclosure Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Line of Credit Facility [Axis] Line of Credit Facility [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] 7.875% Senior Unsecured Notes [Member] Seven Point Eight Seventy Five Percentage Senior Unsecured Notes [Member] Seven point eight hundred seventy five percentage senior unsecured notes [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Senior secured credit facility Secured Long-term Debt, Noncurrent Senior unsecured notes Unsecured Long-term Debt, Noncurrent Senior unsecured notes, stated rate Debt Instrument, Interest Rate, Stated Percentage Senior unsecured notes, unamortized premium Debt Instrument, Unamortized Premium Total long-term debt Long-term Debt, Excluding Current Maturities S E K C O [Member] S E K C O [Member] SEKCO [Member]. Barge Assets [Member] Barge Assets [Member] Barge Assets [Member] Segment margin Segment margin Revenues less product costs, operating expenses (excluding non-cash charges such as depreciation and amortization), and segment general and administrative expenses, plus our equity in distributable cash generated by our equity investees. Also excludes the non-cash effects of our stock appreciation rights compensation plan and includes the non-income portion of payments received under direct financing leases. Capital expenditures Segment Reporting Information, Expenditures for Additions to Long-Lived Assets External customers Revenue from External Customers Intersegment Segment Reporting Information, Intersegment Revenue Acquisition of interests Asset retirement obligation assumed in acquisition of GOPL Schedule of Property, Plant and Equipment [Table] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment by Type [Axis] Property, Plant and Equipment by Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Depreciation expense Depreciation Related Party Transactions [Abstract] Schedule Of Transactions With Related Parties Schedule of Related Party Transactions [Table Text Block] Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. Inventory Disclosure [Abstract] Schedule Of Major Components Of Inventories Schedule of Inventory, Current [Table Text Block] Debt Debt Disclosure [Text Block] Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Organization And Basis Of Presentation And Consolidation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Placement Of Assets And Liabilities Within The Fair Value Hierarchy Levels Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Derivative [Table] Derivative [Table] Derivative Instrument Risk [Axis] Derivative Instrument Risk [Axis] Derivative Contract Type [Domain] Derivative Contract Type [Domain] Sell (Short) Contracts [Member] Selling Contract [Member] Selling Contract [Member] Buy (Long) Contracts [Member] Buying Contract [Member] Buying Contract [Member] Instrument [Axis] Instrument [Axis] Instrument Type [Domain] Instrument Type [Domain] Crude Oil Futures [Member] Crude Oil Futures [Member] Crude Oil Futures [Member] Crude Oil Swap [Member] [Domain] Crude Oil Swap [Member] Crude Oil Swap [Member] Heating Oil Futures [Member] Heating Oil Futures [Member] Heating Oil Futures [Member] RBOB Gasoline Futures [Member] Rbob Gasoline Futures [Member] RBOB Gasoline Futures [Member] Fuel Oil Futures [Member] Fuel Oil Futures [Member] Fuel Oil Futures [Member] Crude Oil Options [Member] Crude Oil Options [Member] Crude oil options [Member]. Heating Oil Options [Member] Heating Oil Options [Member] Heating oil options [Member]. Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not Designated As Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Derivative [Line Items] Derivative [Line Items] Contract volumes (1,000 bbls) Notional Amount of Derivatives Weighted average contract price per gal Derivative, Nonmonetary Notional Amount, Price Per Gallon Weighted average contract price per bbl Derivative, Nonmonetary Notional Amount, Price Per Barrel Weighted average premium received Derivative, Nonmonetary Notional Amount, Price Per Unit Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Cash and cash equivalents Other current assets Other Current Assets Sum of all current assets as of the balance sheet date excluding cash and cash equivalents. Total current assets Assets, Current Fixed Assets, at cost Property, Plant and Equipment, Gross Less: Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Net fixed assets Property, Plant and Equipment, Net Goodwill Goodwill Other assets, net Other Noncurrent Assets Net Sum of the following noncurrent assets as of the balance sheet date: net investment in direct financing leases, intangible assets (net), and other assets (net). Equity investees Equity Method Investments Investments in subsidiaries Investments Of Subsidiaries Held By Parent Carrying value of investments in wholly-owned subsidiaries at the balance sheet date that are eliminated in consolidation. TOTAL ASSETS Current liabilities Liabilities, Current SENIOR UNSECURED NOTES Deferred tax liabilities Deferred Tax Liabilities, Noncurrent Other liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Partners' capital Partners' Capital TOTAL LIABILITIES AND PARTNERS' CAPITAL Liabilities and Equity Income Statement [Abstract] REVENUES: Revenues [Abstract] Pipeline transportation services COSTS AND EXPENSES: Costs and Expenses [Abstract] Supply and logistics product costs Supply And Logistics Product Costs Costs incurred during the period associated with purchasing and marketing of crude oil and refined products and, to a lesser extent, supplying carbon dioxide to industrial customers. Supply and logistics operating costs Supply And Logistics Operating Costs Costs incurred during the period associated with terminaling, blending, storing, marketing and transporting crude oil, petroleum products and carbon dioxide. Equity in earnings (losses) of equity investees Interest expense Income tax benefit (expense) NET INCOME PER COMMON UNIT: Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic [Abstract] Basic and Diluted Net Income (Loss), Per Outstanding Limited Partnership and General Partnership Unit, Basic and Diluted WEIGHTED AVERAGE OUTSTANDING COMMON UNITS: Earnings Per Unit [Abstract] Basic and Diluted Weighted Average Number of Limited Partnership and General Partnership Unit Outstanding, Basic and Diluted Statement of Partners' Capital [Abstract] Statement [Table] Statement [Table] Statement, Scenario [Axis] Statement, Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Statement, Partner Capital Components [Axis] Statement, Partner Capital Components [Axis] Partner Capital Components [Domain] Partner Capital Components [Domain] Statement [Line Items] Statement [Line Items] Partners' capital, January 1, units Partners' capital, January 1, value Limited Partners' Capital Account Net income Cash distributions Partners' Capital Account, Distributions Issuance of common units for cash, net, units Issuance of common units for cash, net, value Partners' Capital Account, Sale of Units Conversion of waiver units, units Partners' Capital Account, Units, Converted Conversion of waiver units, value Partners' Capital Account, Exchanges and Conversions Other, units Limited Partners Capital Account Units, Other Increase (Decrease) Limited Partners Capital Account Units, Other Increase (Decrease) Other, value Partners' Capital, Other Partners' capital, September 30, units Partners' capital, September 30, value Transactions With Related Parties Related Party Transactions Disclosure [Text Block] Supplemental Cash Flow Information Cash Flow, Supplemental Disclosures [Text Block] Business Segment Information Segment Reporting Disclosure [Text Block] Eurodollar Borrowings [Axis] Eurodollar Borrowings [Axis] Eurodollar Borrowings [Axis] Eurodollar Borrowings [Axis] [Domain] Eurodollar Borrowings [Axis] [Domain] [Domain] for Eurodollar Borrowings [Axis] [Axis] Amended Debt Instrument [Axis] Amended Debt Instrument [Axis] Amended Debt Instrument [Axis] Amended Debt Instrument [Domain] Amended Debt Instrument [Domain] [Domain] for Amended Debt Instrument [Axis] Senior Secured Credit Facility [Member] Senior Secured Credit Facility [Member] Senior Secured Credit Facility [Member] Inventory Sublimit [Member] Inventory Sublimit [Member] Inventory Sublimit [Member] Amended Facility [Member] Amended Facility [Member] Amended Facility [Member] Accordion Feature [Member] Accordion Feature [Member] Accordion Feature [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Senior Unsecured Notes [Member] Unsecured Debt [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Letters Of Credit [Member] Letter of Credit [Member] Credit facility, amount outstanding Line of Credit Facility, Amount Outstanding Credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Credit facility, aggregate maximum borrowing capacity Line Of Credit Facility Aggregate Maximum Borrowing Capacity Line of credit facility, aggregate maximum borrowing capacity after accordion feature adjustment. Letters of credit, outstanding amount Letters of Credit Outstanding, Amount Credit facility and senior unsecured notes, maturity dates Debt Instrument, Maturity Date Eurodollar Borrowings Margin Eurodollar Borrowings Margin Eurodollar Borrowings Margin Alternate Base Rate Borrowings Margin Alternate Base Rate Borrowings Margin Alternate Base Rate Borrowings Margin Letter of Credit, Fee Percentage Letter of Credit, Fee Percentage The annual rate paid for the use of letters of credit. Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Total amount available for borrowings under credit facility Line of Credit Facility, Remaining Borrowing Capacity Senior unsecured notes, principal amount Debt Instrument, Face Amount Senior unsecured notes, percentage of face value Debt Instrument Percentage Of Face Value Issue price of the notes as a percent of face value. Senior unsecured notes, effective interest rate Debt Instrument, Interest Rate, Effective Percentage Revenues Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Equity in earnings of equity investees Business Combination, Pro Forma Information, Income (Loss) From Equity Method Investments of Acquiree since Acquisition Date, Actual This element represents the amount of equity in earnings of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. Net income Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Distributions Schedule of Distributions Made to Members or Limited Partners, by Distribution [Table Text Block] Revenues Business Acquisition, Pro Forma Revenue Equity in earnings of equity investees Business Acquisitions Pro Forma Equity In Earnings Of Equity Investees The pro forma equity in earnings for a period as if the acquisition had been completed at the beginning of a period. Net income Business Acquisition, Pro Forma Net Income (Loss) As reported net income per unit Pro forma net income per unit Business Acquisition Pro Forma Earnings Per Unit Basic And Diluted The pro forma earnings per unit for a period as if the business combination had been completed at the beginning of a period. As reported units outstanding Pro forma units outstanding Business Acquisition Pro Forma Units Outstanding The pro forma units outstanding for a period as if the business combination had been completed at the beginning of a period. Long-term Debt, Fair Value Long-term Debt, Fair Value Cash distributions received from equity investees - return of investment Investments in equity investees Repayments on loan to non-guarantor subsidiary Repayments of Debt Issuance of ownership interests to partners for cash Distributions to partners/owners Corporate general and administrative expenses Other General and Administrative Expense Depreciation and amortization Net loss on disposal of surplus assets Distributable cash from equity investees in excess of equity in earnings Distributable cash from equity investees in excess of equity in earnings Distributable cash from equity investees in excess of equity in earnings Non-cash items not included in segment margin Non-Cash Expenses Not Included In Segment Margin Non-cash expenses not included in segment margin Cash payments from direct financing leases in excess of earnings Cash Payments From Direct Financing Leases In Excess Of Earnings Cash payments from direct financing leases in excess of earnings. Condensed Consolidating Balance Sheet Schedule Of Condensed Consolidating Balance Sheet [Table Text Block] Schedule of condensed consolidating balance sheet table text block Condensed Consolidating Statement Of Operations Schedule Of Condensed Consolidating Statements Of Income [Table Text Block] Schedule of condensed consolidating statements of income table text block Condensed Consolidating Statements Of Cash Flows Schedule Of Condensed Consolidating Statements Of Cash Flow [Table Text Block] Schedule of condensed consolidating statements of cash flow table text block Inventories Inventory Disclosure [Text Block] Unamortized excess cost amount Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Schedule Of Obligations Under Debt Arrangements Schedule of Debt [Table Text Block] Statement of Financial Position [Abstract] CURRENT ASSETS: Assets, Current [Abstract] Accounts receivable-trade, net Accounts Receivable, Net, Current Inventories Inventory, Net Other Other Assets, Current FIXED ASSETS, at cost NET INVESTMENT IN DIRECT FINANCING LEASES, net of unearned income Capital Leases, Lessor Balance Sheet, Net Investment in Direct Financing Leases, Noncurrent EQUITY INVESTEES INTANGIBLE ASSETS, net of amortization Intangible Assets, Net (Excluding Goodwill) GOODWILL OTHER ASSETS, net of amortization Other Assets, Noncurrent CURRENT LIABILITIES: Liabilities, Current [Abstract] Accounts payable-trade Accounts Payable, Current Accrued liabilities Accrued Liabilities, Current Total current liabilities SENIOR SECURED CREDIT FACILITY DEFERRED TAX LIABILITIES OTHER LONG-TERM LIABILITIES COMMITMENTS AND CONTINGENCIES (Note 14) Commitments and Contingencies PARTNERS' CAPITAL: Partners' Capital [Abstract] Common unitholders, 81,202,752 and 71,965,062 units issued and outstanding at September 30, 2012 and December 31, 2011, respectively Petroleum products Energy Related Inventory, Petroleum Crude oil Energy Related Inventory, Crude Oil, Products and Merchandise Caustic soda Caustic Soda Inventory Carrying amount of caustic soda as of the balance sheet date. NaHS Sodium Hydrosulfide Inventory Carrying amount of sodium hydrosulfide (NaHS) as of the balance sheet date. Other Other Inventory Total Amortization expense on intangible assets Amortization of Intangible Assets Estimated amortization expense, remainder of 2012 Future Amortization Expense, Remainder of Fiscal Year Estimated amortization expense, 2013 Future Amortization Expense, Year Two Estimated amortization expense, 2014 Future Amortization Expense, Year Three Estimated amortization expense, 2015 Future Amortization Expense, Year Four Estimated amortization expense, 2016 Future Amortization Expense, Year Five Acquisitions Business Combination Disclosure [Text Block] Genesis NEJD Pipeline, LLC [Member] Genesis Nejd Pipeline Llc [Member] Genesis NEJD Pipeline, LLC [Member] Genesis Energy L P Interest in Subsidiary Guarantors [Member] Genesis Energy L P Interest in Subsidiary Guarantors [Member] Genesis Energy L P Interest in Subsidiary Guarantors [Member] Guarantor Obligations, Current Carrying Value Guarantor Obligations, Current Carrying Value Percentage of equity interest Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions Schedule Of Fixed Assets Property, Plant and Equipment [Table Text Block] Depreciation Expense Depreciation Expense [Table Text Block] Depreciation Expense [Table Text Block] Schedule Of Reconciliation Of Liability For Asset Retirement Obligations Schedule of Change in Asset Retirement Obligation [Table Text Block] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transactions, by Related Party [Axis] Related Party Transactions, by Related Party [Axis] Related Party [Domain] Related Party [Domain] Quintana Group [Member] Quintana Group [Member] [Member] Quintana Group Sandhill Group, LLC [Member] Sandhill Group Llc [Member] Sandhill Group, LLC [Member] Davison [Member] Davison [Member] Davison [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Due from related parties Due from Related Parties Due to related parties Due to Related Parties Revenues Equity Method Investment, Summarized Financial Information, Revenue Operating income Equity Method Investment, Summarized Financial Information, Income (Loss) from Continuing Operations before Extraordinary Items Net income Equity Method Investment, Summarized Financial Information, Net Income (Loss) Common units, issued Limited Partners' Capital Account, Units Issued Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Common Unitholders [Member] Common Stock [Member] Chief Executive Officer [Member] Chief Executive Officer [Member] Genesis Energy Interest In Sandhill Group, LLC [Member] Genesis Energy Interest In Sandhill Group Llc [Member] Genesis Energy Interest In Sandhill Group, LLC [Member] Related party transaction, expenses Related Party Transaction, Expenses from Transactions with Related Party Related party transaction, revenues Related Party Transaction, Revenues from Transactions with Related Party Percentage of common units owned by affiliated companies Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Percentage of interest held Equity Method Investment, Ownership Percentage Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Total Commodity Derivatives [Member] Commodity Contract [Member] Designated As Hedging Instrument [Member] Designated as Hedging Instrument [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Amount of Gain (Loss) Recognized in Income, Supply & Logistics Product Costs Derivative Instruments, Gain (Loss) Recognized in Income, Net Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Derivatives, Fair Value, by Balance Sheet Location [Axis] Derivatives, Fair Value, by Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Current Assets [Member] Other Current Assets [Member] Other Current Assets [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Asset Derivatives Derivative Assets, Current Liability Derivatives Derivative Liabilities, Current Schedule Of Outstanding Derivatives Entered Into To Hedge Inventory Or Fixed Price Purchase Commitments Schedule of Derivative Instruments [Table Text Block] Schedule Of Fair Value Of Derivative Assets And Liabilities Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule Of Effect On Operating Results Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block] Genesis' share of operating earnings Equity Method Investment Operating Earnings Owned By Parent Equity method investment operating earnings owned by parent before amortization of excess purchase price. Amortization of excess purchase price Amortization of the excess purchase price of joint ventures Amortization of the excess amount of the purchase price over the equity in the joint ventures. Net equity in earnings (losses) Distributions received Equity Method Investment, Dividends Or Distributions, Operating and Investing Activities Equity Method Investment, Dividends Or Distributions, Operating and Investing Activities Intangible Assets Intangible Assets Disclosure [Text Block] Schedule of Finite-Lived Intangible Assets by Major Class [Table] Schedule of Finite-Lived Intangible Assets by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Refinery Services Customer Relationships [Member] Refinery Services Customer Relationships [Member] Refinery Services Customer Relationships [Member] Refinery Services Licensing Agreements [Member] Refinery Services Licensing Agreements [Member] Refinery Services Licensing Agreements [Member] Refinery Services Supplier Relationships [Member] Refinery Services Supplier Relationships [Member] Refinery Services Supplier Relationships [Member] Refinery Services Segment Total [Member] Refinery Services Segment Total [Member] Refinery Services Segment Total [Member] Supply And Logistics Customer Relationships [Member] Supply And Logistics Customer Relationships [Member] Supply And Logistics Customer Relationships [Member] Supply And Logistics Intangibles Associated With Lease [Member] Supply And Logistics Lease [Member] Supply And Logistics Lease [Member] Supply And Logistics Trade Names [Member] Supply And Logistics Trade Names [Member] Supply And Logistics Trade Names [Member] Supply And Logistics Segment Total [Member] Supply And Logistics Segment Total [Member] Supply And Logistics Segment Total [Member] Other [Member] Other Intangible Assets [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Intangible assets, Gross Carrying Amount Finite-Lived Intangible Assets, Gross Intangible assets, Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Intangible assets, Carrying Value Finite-Lived Intangible Assets, Net Energy Equipment [Member] Energy Equipment [Member] Pipelines And Related Assets [Member] Pipelines [Member] Machinery And Equipment [Member] Machinery and Equipment [Member] Transportation Equipment [Member] Transportation Equipment [Member] Marine Vessels [Member] Maritime Equipment [Member] Land and Building [Member] Land and Building [Member] Land, Buildings And Improvements [Member] Land, Buildings and Improvements [Member] Office Equipment, Furniture And Fixtures [Member] Furniture and Fixtures [Member] Construction In Progress [Member] Construction in Progress [Member] Property, Plant And Equipment, Other Types [Member] Property, Plant and Equipment, Other Types [Member]