Partners Capital And Distributions [Line Items]

No definition available.

Name:	gel_PartnersCapitalAndDistributionsLineItems
Namespace Prefix:	gel_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cash distribution paid to unit-holder of limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

+ Details

Name:	us-gaap_DistributionMadeToLimitedPartnerCashDistributionsPaid
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Date of distribution for distribution of cash or unit to limited partner of limited partnership (LP), in YYYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_DistributionMadeToLimitedPartnerDistributionDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of the distribution per unit of limited partner interest.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

+ Details

Name:	us-gaap_PartnersCapitalAccountDistributionPerUnitOfLimitedPartnerInterest
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_LimitedPartnersCapitalAccountByClassAxis=gel_CommonUnitholdersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LimitedPartnersCapitalAccountByClassAxis=gel_PreferredUnitholdersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

Partners' Capital, Mezzanine Capital and Distributions (Common Cash Distributions Paid) (Details) - USD ($)	May 15, 2026	Mar. 06, 2026	Feb. 13, 2026	Feb. 03, 2026	Nov. 14, 2025	Aug. 14, 2025	May 15, 2025	Mar. 06, 2025
Common Unitholders
Partners Capital And Distributions [Line Items]
Date Paid			Feb. 13, 2026		Nov. 14, 2025	Aug. 14, 2025	May 15, 2025
Per Unit Amount (in dollars per unit)			$ 0.1800		$ 0.1650	$ 0.1650	$ 0.1650
Total Amount			$ 22,044,000		$ 20,207,000	$ 20,207,000	$ 20,207,000
Common Unitholders \| Subsequent Event
Partners Capital And Distributions [Line Items]
Date Paid	May 15, 2026
Per Unit Amount (in dollars per unit)	$ 0.1800
Total Amount	$ 22,044,000
Preferred Unitholders \| Class A Convertible Preferred Stock Units
Partners Capital And Distributions [Line Items]
Per Unit Amount (in dollars per unit)		$ 0.6841	$ 0.9473	$ 0.3473	$ 0.9473	$ 0.9473	$ 0.9473	$ 0.6841
Total Amount		$ 2,200,000	$ 14,868,000	$ 300,000	$ 14,868,000	$ 14,868,000	$ 19,942,000	$ 5,100,000
Preferred Unitholders \| Class A Convertible Preferred Stock Units \| Subsequent Event
Partners Capital And Distributions [Line Items]
Per Unit Amount (in dollars per unit)	$ 0.9473
Total Amount	$ 13,565,000