XML 79 R55.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Organization (Details) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Sep. 01, 2017 USD ($) | Dec. 31, 2017 USD ($) segment | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Aug. 14, 2017 USD ($)
Business Acquisition [Line Items] |  |  |  |  |
Limited liabily company, ownership interest owned |  | 100.00% |  |  |
Payments to Acquire Businesses, Gross |  | $ 1,325,759 | $ 25,394 | $ 1,520,299 |
Number of divisions that constitute reportable segments | segment |  | 4 |  |  |
Convertible Preferred Stock [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Temporary Equity, Stock Issued During Period, Value, New Issues | $ 750,000 |  |  |  |
Convertible Preferred Stock [Member] | Private Placement [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Temporary Equity, Stock Issued During Period, Value, New Issues | 750,000 |  |  |  |
6.500% senior unsecured notes |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Debt issued, aggregate principal amount |  | $ 550,000 | $ 0 |  |
Alkali Business [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Payments to Acquire Businesses, Gross | 1,325,000 |  |  |  |
Alkali Business [Member] | Convertible Preferred Stock [Member] | Private Placement [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Temporary Equity, Stock Issued During Period, Value, New Issues | 750,000 |  |  |  |
Alkali Business [Member] | 6.500% senior unsecured notes |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Debt issued, aggregate principal amount | $ 550,000 |  |  |  | $ 550,000

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
Name: | us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Value of new stock classified as temporary equity issued during the period. + References No definition available. + Details
Name: | us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_ConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=gel_SixPointfivepercentageSeniorUnsecuredNotesDue2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=gel_AlkaliBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |