XML 107 R89.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Partners' Capital, Mezzanine Equity and Distributions (Additional Information Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Mar. 24, 2017 | Jul. 27, 2016 | Dec. 31, 2018 | Dec. 31, 2017
Partners Capital And Distributions [Line Items] |  |  |  |
Common units outstanding (in units) |  |  | 122,579,218 | 122,579,218
Cash or stock available for distributions, percent usually distributed |  |  | 100.00% |
Days to distribute |  |  | 45 days |
Common units issued (in units) |  |  | 122,579,218 | 122,579,218
Price per share of common units issued (in dollars per unit) | $ 30.65 | $ 37.90 |  |
Net proceeds received from sale of units, net of underwriter discounts | $ 140,513 | $ 298,452 |  |
Class A |  |  |  |
Partners Capital And Distributions [Line Items] |  |  |  |
Common units issued (in units) | 4,600,000 | 8,000,000 |  |
Price per share of common units issued (in dollars per unit) | $ 30.65 | $ 37.90 |  |
Additional common units to purchase (in units) | 600,000 |  |  |
Net proceeds received from sale of units, net of underwriter discounts | $ 140,500 | $ 298,500 |  |
Class A | Partners' Capital |  |  |  |
Partners Capital And Distributions [Line Items] |  |  |  |
Common units outstanding (in units) |  |  | 122,539,221 |
Class B | Partners' Capital |  |  |  |
Partners Capital And Distributions [Line Items] |  |  |  |
Common units outstanding (in units) |  |  | 39,997 |

X
- Definition Cash Or Stock Available For Distributions, Percent Usually Distributed + References No definition available. + Details
Name: | gel_CashOrStockAvailableForDistributionsPercentUsuallyDistributed
Namespace Prefix: | gel_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Limited Partners' Capital Accountant, Option To Purchase + References No definition available. + Details
Name: | gel_LimitedPartnersCapitalAccountantOptionToPurchase
Namespace Prefix: | gel_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of days to distribute available cash. + References No definition available. + Details
Name: | gel_NumberOfDaysToDistributeAvailableCash
Namespace Prefix: | gel_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Partners Capital And Distributions [Line Items] + References No definition available. + Details
Name: | gel_PartnersCapitalAndDistributionsLineItems
Namespace Prefix: | gel_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of limited partner units issued. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055 + Details
Name: | us-gaap_LimitedPartnersCapitalAccountUnitsIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of limited partner units outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055 + Details
Name: | us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Monetary value of the issuance of new units of limited partnership interest in a public offering, net of offering costs. This is a parenthetical disclosure. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_PartnersCapitalAccountPublicSaleOfUnitsNetOfOfferingCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_PartnerTypeOfPartnersCapitalAccountAxis=us-gaap_CommonClassAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_PartnerTypeOfPartnersCapitalAccountAxis=us-gaap_LimitedPartnerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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