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Condensed Consolidating Financial Information (Condensed Consolidating Statement of Cash Flows) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash (used in) provided by operating activities | $ 390,039 | $ 323,556 | $ 282,752
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Payments to acquire fixed and intangible assets | (195,367) | (250,593) | (463,100)
Cash distributions received from equity investees - return of investment | 28,979 | 35,582 | 36,939
Investments in equity investees | (3,018) | (4,647) | 0
Acquisitions | 0 | (1,325,759) | (25,394)
Intercompany transfers | 0 | 0 | 0
Repayments on loan to non-guarantor subsidiary | 0 | 0 | 0
Contributions in aid of construction costs | 0 | 124 | 13,374
Proceeds from asset sales | 310,099 | 85,722 | 3,609
Other, net | 0 | 0 | (151)
Net cash used in (provided by) investing activities | 140,693 | (1,459,571) | (434,723)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Borrowings on senior secured credit facility | 980,700 | 1,458,700 | 1,115,800
Repayments on senior secured credit facility | (1,109,800) | (1,637,700) | (952,600)
Proceeds from issuance of senior unsecured notes | 0 | 1,000,000 | 0
Proceeds from issuance of Class A convertible preferred units, net | 0 | 726,419 | 0
Repayment of senior unsecured notes | (145,170) | (204,830) | 0
Debt issuance costs | (242) | (25,913) | (1,578)
Intercompany transfers | 0 | 0 | 0
Issuance of common units for cash, net | 0 | 140,513 | 298,020
Distributions to partners/owners | (257,416) | (321,875) | (310,039)
Contributions from noncontrolling interests | 2,592 | 2,770 | 236
Other, net | (137) | (57) | (1,734)
Net cash provided by (used in) financing activities | (529,473) | 1,138,027 | 148,105
Net increase in cash and cash equivalents | 1,259 | 2,012 | (3,866)
Cash and cash equivalents at beginning of period | 9,041 | 7,029 | 10,895
Cash and cash equivalents at end of period | 10,300 | 9,041 | 7,029
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
Intercompany transfers | 0 | 0 | 0
Repayments on loan to non-guarantor subsidiary | 0 | 0 | 0
Contributions in aid of construction costs |  | 0 | 0
Proceeds from asset sales | 0 | 0 | 0
Other, net |  |  | 0
Net cash used in (provided by) 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 |
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
Distributions to partners/owners | 0 | 0 | 0
Contributions from noncontrolling interests | 0 | 0 | 0
Other, net | 0 | 0 | 0
Net cash provided by (used in) financing activities | 0 | 0 | 0
Net increase 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 | (360,711) | (318,764) | (289,421)
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 | 140,513 | 298,020
Acquisitions |  | 0 | 0
Intercompany transfers | (503,144) | 2,482,781 | 31,436
Repayments on loan to non-guarantor subsidiary | (7,484) | (6,764) | (6,113)
Contributions in aid of construction costs |  | 0 | 0
Proceeds from asset sales | 0 | 0 | 0
Other, net |  |  | 0
Net cash used in (provided by) investing activities | (510,628) | 2,616,530 | 323,343
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 |
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 | 503,144 | (2,482,781) | (31,437)
Issuance of common units for cash, net |  | (140,513) | (298,020)
Distributions to partners/owners | 381,316 | 339,375 | 310,039
Contributions from noncontrolling interests | 0 | 0 | 0
Other, net | (13,121) | (13,847) | (14,504)
Net cash provided by (used in) financing activities | 871,339 | (2,297,766) | (33,922)
Net increase 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 | 28,784 | 162,980 | 179,853
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 | (140,513) | (298,020)
Acquisitions |  | 0 | 0
Intercompany transfers | 503,144 | (1,157,781) | (31,436)
Repayments on loan to non-guarantor subsidiary | 0 | 0 | 0
Contributions in aid of construction costs |  | 0 | 0
Proceeds from asset sales | 0 | 0 | 0
Other, net |  |  | 0
Net cash used in (provided by) investing activities | 503,144 | (1,298,294) | (329,456)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Borrowings on senior secured credit facility | 980,700 | 1,458,700 | 1,115,800
Repayments on senior secured credit facility | (1,109,800) | (1,637,700) | (952,600)
Proceeds from issuance of senior unsecured notes |  | 1,000,000 |
Proceeds from issuance of Class A convertible preferred units, net |  | 726,419 |
Repayment of senior unsecured notes | (145,170) | (204,830) |
Debt issuance costs | (242) | (25,913) | (1,578)
Intercompany transfers | 0 | 0 | 0
Issuance of common units for cash, net |  | 140,513 | 298,020
Distributions to partners/owners | (257,416) | (321,875) | (310,039)
Contributions from noncontrolling interests | 0 | 0 | 0
Other, net | 0 | 0 | 0
Net cash provided by (used in) financing activities | (531,928) | 1,135,314 | 149,603
Net increase in cash and cash equivalents | 0 | 0 | 0
Cash and cash equivalents at beginning of period | 6 | 6 | 6
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 | 514,096 | 448,873 | 382,734
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Payments to acquire fixed and intangible assets | (114,887) | (236,151) | (463,100)
Cash distributions received from equity investees - return of investment | 28,979 | 35,582 | 36,939
Investments in equity investees | (3,018) | (4,647) | 0
Acquisitions |  | (759) | (25,394)
Intercompany transfers | 0 | (1,325,000) | 0
Repayments on loan to non-guarantor subsidiary | 7,484 | 6,764 | 6,113
Contributions in aid of construction costs |  | 124 | 13,374
Proceeds from asset sales | 310,099 | 85,722 | 3,609
Other, net |  |  | (151)
Net cash used in (provided by) investing activities | 228,657 | (1,438,365) | (428,610)
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 |
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 | (485,506) | 1,169,781 | 57,701
Issuance of common units for cash, net |  | 140,513 | 298,020
Distributions to partners/owners | (257,416) | (321,875) | (310,039)
Contributions from noncontrolling interests | 0 | 0 | 0
Other, net | (137) | (57) | (1,734)
Net cash provided by (used in) financing activities | (743,059) | 988,362 | 43,948
Net increase in cash and cash equivalents | (306) | (1,130) | (1,928)
Cash and cash equivalents at beginning of period | 5,230 | 6,360 | 8,288
Cash and cash equivalents at end of period | 4,924 | 5,230 | 6,360
Non-Guarantor Subsidiaries | Reportable Legal Entities |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash (used in) provided by operating activities | 207,870 | 30,467 | 9,586
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Payments to acquire fixed and intangible assets | (80,480) | (14,442) | 0
Cash distributions received from equity investees - return of investment | 0 | 0 | 0
Investments in equity investees | 0 | 0 | 0
Acquisitions |  | (1,325,000) | 0
Intercompany transfers | 0 | 0 | 0
Repayments on loan to non-guarantor subsidiary | 0 | 0 | 0
Contributions in aid of construction costs |  | 0 | 0
Proceeds from asset sales | 0 | 0 | 0
Other, net |  |  | 0
Net cash used in (provided by) investing activities | (80,480) | (1,339,442) | 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 |
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 | (17,638) | 1,313,000 | (26,264)
Issuance of common units for cash, net |  | 0 | 0
Distributions to partners/owners | (123,900) | (17,500) | 0
Contributions from noncontrolling interests | 2,592 | 2,770 | 236
Other, net | 13,121 | 13,847 | 14,504
Net cash provided by (used in) financing activities | (125,825) | 1,312,117 | (11,524)
Net increase in cash and cash equivalents | 1,565 | 3,142 | (1,938)
Cash and cash equivalents at beginning of period | 3,805 | 663 | 2,601
Cash and cash equivalents at end of period | $ 5,370 | $ 3,805 | $ 663

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- Definition Amount of cash inflow (outflow) from financing activities classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + 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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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- Definition The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + 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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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