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Condensed Consolidating Financial Information (Condensed Consolidating Statement of Cash Flows) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash (used in) provided by operating activities | $ 338,858 | $ 298,338 | $ 289,536
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Payments to acquire fixed and intangible assets | (250,593) | (463,100) | (495,774)
Cash distributions received from equity investees - return of investment | 20,280 | 21,353 | 25,645
Investments in equity investees | (4,647) | 0 | (3,045)
Acquisitions | (1,325,759) | (25,394) | (1,520,299)
Intercompany transfers | 0 | 0 | 0
Repayments on loan to non-guarantor subsidiary | 0 | 0 | 0
Contributions in aid of construction costs | 124 | 13,374 | 3,179
Proceeds from asset sales | 85,722 | 3,609 | 2,811
Other, net | 0 | (151) | (1,976)
Net cash used in investing activities | (1,474,873) | (450,309) | (1,989,459)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Borrowings on senior secured credit facility | 1,458,700 | 1,115,800 | 1,525,050
Repayments on senior secured credit facility | (1,637,700) | (952,600) | (960,450)
Proceeds from issuance of senior unsecured notes | 1,000,000 | 0 | 1,139,718
Proceeds from issuance of Class A convertible preferred units, net | 726,419 | 0 | 0
Repayment of senior unsecured notes | (204,830) | 0 | (350,000)
Debt issuance costs | (25,913) | (1,578) | (28,901)
Intercompany transfers | 0 | 0 | 0
Issuance of common units for cash, net | 140,513 | 298,020 | 633,759
Distributions to partners/owners | (321,875) | (310,039) | (256,389)
Contributions (distributions) from (to) noncontrolling interests | 2,770 | 236 | (960)
Other, net | (57) | (1,734) | (471)
Net cash provided by financing activities | 1,138,027 | 148,105 | 1,701,356
Net decrease in cash and cash equivalents | 2,012 | (3,866) | 1,433
Cash and cash equivalents at beginning of period | 7,029 | 10,895 | 9,462
Cash and cash equivalents at end of period | 9,041 | 7,029 | 10,895
Reportable Legal Entities | Genesis Energy Finance Corporation (Co-Issuer) |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash (used in) provided by operating activities | 0 | 0 | 0
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Payments to acquire fixed and intangible assets | 0 | 0 | 0
Cash distributions received from equity investees - return of investment | 0 | 0 | 0
Investments in equity investees | 0 | 0 | 0
Acquisitions | 0 | 0 | 0
Intercompany transfers | 0 | 0 | 0
Repayments on loan to non-guarantor subsidiary | 0 | 0 | 0
Contributions in aid of construction costs | 0 | 0 | 0
Proceeds from asset sales | 0 | 0 | 0
Other, net | 0 | 0 | 0
Net cash used in investing activities | 0 | 0 | 0
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Borrowings on senior secured credit facility | 0 | 0 | 0
Repayments on senior secured credit facility | 0 | 0 | 0
Proceeds from issuance of senior unsecured notes | 0 |  | 0
Proceeds from issuance of Class A convertible preferred units, net | 0 |  |
Repayment of senior unsecured notes | 0 |  | 0
Debt issuance costs | 0 | 0 | 0
Intercompany transfers | 0 | 0 | 0
Issuance of common units for cash, net | 0 | 0 | 0
Distributions to partners/owners | 0 | 0 | 0
Contributions (distributions) from (to) noncontrolling interests | 0 | 0 | 0
Other, net | 0 | 0 | 0
Net cash provided by financing activities | 0 | 0 | 0
Net decrease in cash and cash equivalents | 0 | 0 | 0
Cash and cash equivalents at beginning of period | 0 | 0 | 0
Cash and cash equivalents at end of period | 0 | 0 | 0
Eliminations |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash (used in) provided by operating activities | (301,264) | (289,421) | (49,651)
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Payments to acquire fixed and intangible assets | 0 | 0 | 0
Cash distributions received from equity investees - return of investment | 0 | 0 | (186,026)
Investments in equity investees | 140,513 | 298,020 | 633,761
Acquisitions | 0 | 0 | 0
Intercompany transfers | 1,157,781 | 31,436 | 1,240,973
Repayments on loan to non-guarantor subsidiary | (6,764) | (6,113) | (5,524)
Contributions in aid of construction costs | 0 | 0 | 0
Proceeds from asset sales | 0 | 0 | 0
Other, net | 0 | 0 | 0
Net cash used in investing activities | 1,291,530 | 323,343 | 1,683,184
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Borrowings on senior secured credit facility | 0 | 0 | 0
Repayments on senior secured credit facility | 0 | 0 | 0
Proceeds from issuance of senior unsecured notes | 0 |  | 0
Proceeds from issuance of Class A convertible preferred units, net | 0 |  |
Repayment of senior unsecured notes | 0 |  | 0
Debt issuance costs | 0 | 0 | 0
Intercompany transfers | (1,157,781) | (31,437) | (1,240,973)
Issuance of common units for cash, net | (140,513) | (298,020) | (633,759)
Distributions to partners/owners | 321,875 | 310,039 | 256,389
Contributions (distributions) from (to) noncontrolling interests | 0 | 0 | 0
Other, net | (13,847) | (14,504) | (15,190)
Net cash provided by financing activities | (990,266) | (33,922) | (1,633,533)
Net decrease in cash and cash equivalents | 0 | 0 | 0
Cash and cash equivalents at beginning of period | 0 | 0 | 0
Cash and cash equivalents at end of period | 0 | 0 | 0
Genesis Energy, L.P. (Parent and Co-Issuer) | Reportable Legal Entities |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash (used in) provided by operating activities | 162,980 | 179,853 | (14,082)
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Payments to acquire fixed and intangible assets | 0 | 0 | 0
Cash distributions received from equity investees - return of investment | 0 | 0 | 186,026
Investments in equity investees | (140,513) | (298,020) | (633,761)
Acquisitions | 0 | 0 | 0
Intercompany transfers | (1,157,781) | (31,436) | (1,240,973)
Repayments on loan to non-guarantor subsidiary | 0 | 0 | 0
Contributions in aid of construction costs | 0 | 0 | 0
Proceeds from asset sales | 0 | 0 | 0
Other, net | 0 | 0 | 0
Net cash used in investing activities | (1,298,294) | (329,456) | (1,688,708)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Borrowings on senior secured credit facility | 1,458,700 | 1,115,800 | 1,525,050
Repayments on senior secured credit facility | (1,637,700) | (952,600) | (960,450)
Proceeds from issuance of senior unsecured notes | 1,000,000 |  | 1,139,718
Proceeds from issuance of Class A convertible preferred units, net | 726,419 |  |
Repayment of senior unsecured notes | (204,830) |  | (350,000)
Debt issuance costs | (25,913) | (1,578) | (28,901)
Intercompany transfers | 0 | 0 | 0
Issuance of common units for cash, net | 140,513 | 298,020 | 633,759
Distributions to partners/owners | (321,875) | (310,039) | (256,389)
Contributions (distributions) from (to) noncontrolling interests | 0 | 0 | 0
Other, net | 0 | 0 | 0
Net cash provided by financing activities | 1,135,314 | 149,603 | 1,702,787
Net decrease in cash and cash equivalents | 0 | 0 | (3)
Cash and cash equivalents at beginning of period | 6 | 6 | 9
Cash and cash equivalents at end of period | 6 | 6 | 6
Guarantor Subsidiaries | Reportable Legal Entities |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash (used in) provided by operating activities | 481,727 | 398,320 | 308,144
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Payments to acquire fixed and intangible assets | (250,593) | (463,100) | (495,774)
Cash distributions received from equity investees - return of investment | 20,280 | 21,353 | 25,645
Investments in equity investees | (4,647) | 0 | (3,045)
Acquisitions | (1,325,759) | (25,394) | (1,520,299)
Intercompany transfers | 0 | 0 | 0
Repayments on loan to non-guarantor subsidiary | 6,764 | 6,113 | 5,524
Contributions in aid of construction costs | 124 | 13,374 | 3,179
Proceeds from asset sales | 85,722 | 3,609 | 2,811
Other, net | 0 | (151) | (1,976)
Net cash used in investing activities | (1,468,109) | (444,196) | (1,983,935)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Borrowings on senior secured credit facility | 0 | 0 | 0
Repayments on senior secured credit facility | 0 | 0 | 0
Proceeds from issuance of senior unsecured notes | 0 |  | 0
Proceeds from issuance of Class A convertible preferred units, net | 0 |  |
Repayment of senior unsecured notes | 0 |  | 0
Debt issuance costs | 0 | 0 | 0
Intercompany transfers | 1,169,781 | 57,701 | 1,299,830
Issuance of common units for cash, net | 140,513 | 298,020 | 633,759
Distributions to partners/owners | (321,875) | (310,039) | (256,389)
Contributions (distributions) from (to) noncontrolling interests | 0 | 0 | (960)
Other, net | (57) | (1,734) | (471)
Net cash provided by financing activities | 988,362 | 43,948 | 1,675,769
Net decrease in cash and cash equivalents | 1,980 | (1,928) | (22)
Cash and cash equivalents at beginning of period | 6,360 | 8,288 | 8,310
Cash and cash equivalents at end of period | 8,340 | 6,360 | 8,288
Non-Guarantor Subsidiaries | Reportable Legal Entities |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash (used in) provided by operating activities | (4,585) | 9,586 | 45,125
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Payments to acquire fixed and intangible assets | 0 | 0 | 0
Cash distributions received from equity investees - return of investment | 0 | 0 | 0
Investments in equity investees | 0 | 0 | 0
Acquisitions | 0 | 0 | 0
Intercompany transfers | 0 | 0 | 0
Repayments on loan to non-guarantor subsidiary | 0 | 0 | 0
Contributions in aid of construction costs | 0 | 0 | 0
Proceeds from asset sales | 0 | 0 | 0
Other, net | 0 | 0 | 0
Net cash used in investing activities | 0 | 0 | 0
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Borrowings on senior secured credit facility | 0 | 0 | 0
Repayments on senior secured credit facility | 0 | 0 | 0
Proceeds from issuance of senior unsecured notes | 0 |  | 0
Proceeds from issuance of Class A convertible preferred units, net | 0 |  |
Repayment of senior unsecured notes | 0 |  | 0
Debt issuance costs | 0 | 0 | 0
Intercompany transfers | (12,000) | (26,264) | (58,857)
Issuance of common units for cash, net | 0 | 0 | 0
Distributions to partners/owners | 0 | 0 | 0
Contributions (distributions) from (to) noncontrolling interests | 2,770 | 236 | 0
Other, net | 13,847 | 14,504 | 15,190
Net cash provided by financing activities | 4,617 | (11,524) | (43,667)
Net decrease in cash and cash equivalents | 32 | (1,938) | 1,458
Cash and cash equivalents at beginning of period | 663 | 2,601 | 1,143
Cash and cash equivalents at end of period | $ 695 | $ 663 | $ 2,601

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- Definition Amount of cash inflow (outflow) from financing activities classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3095-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition Amount of cash inflow (outflow) from (to) a noncontrolling interest. Excludes dividends paid to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition Aggregate cash proceeds received from a combination of transactions that are classified as investing activities in which assets, which may include one or more investments, are sold to third-party buyers. This element can be used by entities to aggregate proceeds from all asset sales that are classified as investing activities. + References No definition available. + Details
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- Definition The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations. + References No definition available. + Details
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- Definition The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition The cash outflow to repay long-term debt that is not secured by collateral. Excludes repayments of tax exempt unsecured debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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